2024/12/14 更新

写真a

サトウ ユキヒロ
佐藤 遊洋
SATO Yukihiro
所属
医学部 医学科 基礎医学講座 社会医学講座
外部リンク

学位

  • 博士(歯学) ( 2018年3月   東北大学大学院歯学研究科 )

  • 学士(歯学) ( 2013年3月   東北大学 )

学歴

  • 東北大学   大学院歯学研究科   博士課程

    2014年4月 - 2018年3月

      詳細を見る

  • 東北大学   歯学部

    2007年4月 - 2013年3月

      詳細を見る

経歴

  • 東北大学大学院歯学研究科   大学院非常勤講師

    2024年4月 - 現在

      詳細を見る

  • 旭川医科大学   社会医学講座   講師

    2024年4月 - 現在

      詳細を見る

    国名:日本国

    researchmap

  • 旭川医科大学   社会医学講座   講師(学内)

    2023年4月 - 2024年4月

      詳細を見る

    国名:日本国

    researchmap

  • 旭川市医師会看護専門学校   非常勤講師

    2022年4月 - 現在

      詳細を見る

  • 旭川歯科学院専門学校   非常勤講師

    2019年4月 - 現在

      詳細を見る

  • 北都保健福祉専門学校   非常勤講師

    2018年4月 - 現在

      詳細を見る

  • 日本赤十字北海道看護大学   非常勤講師

    2018年4月 - 2023年3月

      詳細を見る

  • 旭川医科大学   社会医学講座 公衆衛生学・疫学分野   助教

    2018年4月 - 2023年3月

      詳細を見る

  • UCL Health and Society Summer School: Social Determinants of Health

    2016年7月

      詳細を見る

  • Erasmus Winter Programme

    2016年2月 - 2016年3月

      詳細を見る

  • 東北大学   学際高等研究教育院   博士研究教育院生

    2015年6月 - 2018年3月

      詳細を見る

  • 東北大学病院   総合歯科診療部   臨床研修歯科医師

    2013年4月 - 2014年3月

      詳細を見る

▼全件表示

所属学協会

  • 日本衛生学会

    2022年9月 - 現在

      詳細を見る

  • 日本産業衛生学会

    2018年4月 - 現在

      詳細を見る

  • 日本疫学会

    2018年4月 - 現在

      詳細を見る

  • 日本公衆衛生学会

    2015年5月 - 現在

      詳細を見る

  • The International Association for Dental Research

    2014年10月 - 2019年1月

      詳細を見る

  • 日本口腔衛生学会

    2012年5月 - 2022年9月

      詳細を見る

▼全件表示

委員歴

  • Environmental and Occupational Health Practice   Associate Editor (Health Promotion)  

    2023年5月 - 現在   

      詳細を見る

  • 産業衛生学雑誌   編集委員  

    2023年5月 - 現在   

      詳細を見る

  • Journal of Occupational Health   Associate Editor (Health Promotion)  

    2023年5月 - 現在   

      詳細を見る

論文

  • Association between maternal multimorbidity and neurodevelopment of offspring: a prospective birth cohort study from the Japan Environment and Children’s Study

    Takanobu Akagi, Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Kentaro Nakanishi, Yasuhito Kato, Ken Nagaya, Satoru Takahashi, Yoshiya Ito, Hiroyoshi Iwata, Takeshi Yamaguchi, Chihiro Miyashita, Sachiko Ito, Reiko Kishi

    BMJ Open   2024年8月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec><jats:title>Objectives</jats:title><jats:p>To investigate the association between multimorbidity during pregnancy and neurodevelopmental delay in offspring using data from a Japanese nationwide birth cohort study.</jats:p></jats:sec><jats:sec><jats:title>Design</jats:title><jats:p>This study was a prospective birth cohort study.</jats:p></jats:sec><jats:sec><jats:title>Setting</jats:title><jats:p>This study population included 104 059 fetal records who participated in The Japan Environment and Children’s Study from 2011 to 2014.</jats:p></jats:sec><jats:sec><jats:title>Participants</jats:title><jats:p>Pregnant women whose children had undergone developmental testing were included in this analysis.</jats:p></jats:sec><jats:sec><jats:title>Primary and secondary outcome measures</jats:title><jats:p>Neurodevelopment of offspring was assessed using the Japanese version of the Ages and Stages Questionnaire, third edition, comprising five developmental domains. The number of comorbidities among the pregnant women was categorised as zero, single disease or multimorbidity (two or more diseases). Maternal chronic conditions included in multimorbidity were defined as conditions with high prevalence among women of reproductive age. A multivariate logistic regression analysis was conducted to examine the association between multimorbidity in pregnant women and offspring development.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Pregnant women with multimorbidity, single disease and no disease accounted for 3.6%, 30.6% and 65.8%, respectively. The ORs for neurodevelopmental impairment during the follow-up period were similar for infants of mothers with no disease comorbidity and those with a single disease comorbidity. However, the ORs for neurodevelopmental impairment were significantly higher for children born to mothers with multimorbidity compared with those born to healthy mothers.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>An association was observed between the number of comorbidities in pregnant women and developmental delay in offspring. Multimorbidity in pregnant women may be associated with neurodevelopmental delay in their offspring. Further research is required in this regard in many other regions of the world.</jats:p></jats:sec>

    DOI: 10.1136/bmjopen-2023-082585

    researchmap

  • Temporal evolution of suicide by levels of rurality and deprivation among Japanese adults aged 20 years or over between 2009 and 2022

    Eiji Yoshioka, Sharon J. B. Hanley, Yukihiro Sato, Yasuaki Saijo

    Social Psychiatry and Psychiatric Epidemiology   2024年7月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:title>Abstract</jats:title><jats:sec>
    <jats:title>Purpose</jats:title>
    <jats:p>Previous studies have reported that levels of rurality and deprivation are factors associated with suicide risk. Reports on the association between rurality, deprivation and suicide incidence during the COVID-19 pandemic are scarce. The study aims to investigate how suicide rates evolved in areas with different levels of rurality and deprivation among Japanese adults aged 20 years or older between 2009 and 2022.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Methods</jats:title>
    <jats:p>This study used population density in 2020 as an indicator of rurality and per capita prefectural income in 2019 as a proxy for deprivation in Japan’s 47 prefectures. Joinpoint regression analysis was performed to analyze secular trends in suicide rates by rurality and deprivation.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Results</jats:title>
    <jats:p>Suicide rates for both men and women at different levels of rurality and deprivation remained roughly parallel during the research period. Suicide rates for men and women at all levels of rurality and deprivation were on a downward trend until around 2019, just before the onset of the pandemic. Following this, suicide rates in women showed a clear upward trend, while the trend in suicide rates for men also changed around 2019, with a slightly increasing or flat trend thereafter. Changes in suicide rates were greater among women and those aged 20–59 years.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Conclusions</jats:title>
    <jats:p>In Japan, time trends in suicide rates for both men and women have changed before and after the pandemic, but levels of rurality and deprivation across the 47 prefectures do not appear to have contributed much to these changes.</jats:p>
    </jats:sec>

    DOI: 10.1007/s00127-024-02718-x

    researchmap

  • Prenatal risk factors of indoor environment and incidence of childhood eczema in the Japan Environment and Children's Study

    Yu Ait Bamai, Chihiro Miyashita, Atsuko Ikeda, Keiko Yamazaki, Sumitaka Kobayashi, Sachiko Itoh, Yasuaki Saijo, Yoshiya Ito, Eiji Yoshioka, Yukihiro Sato, Reiko Kishi, Michihiro Kamijima, Shin Yamazaki, Yukihiro Ohya, Nobuo Yaegashi, Koichi Hashimoto, Chisato Mori, Shuichi Ito, Zentaro Yamagata, Hidekuni Inadera, Takeo Nakayama, Tomotaka Sobue, Masayuki Shima, Hiroshige Nakamura, Narufumi Suganuma, Koichi Kusuhara, Takahiko Katoh

    Environmental Research   2024年7月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.envres.2024.118871

    researchmap

  • Maternal pre-pregnancy body mass index and related factors: A cross-sectional analysis from the Japan Environment and Children’s Study

    Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Yuki Kunori, Tomoko Kanaya, Kentaro Nakanishi, Yasuhito Kato, Ken Nagaya, Satoru Takahashi, Yoshiya Ito, Hiroyoshi Iwata, Takeshi Yamaguchi, Chihiro Miyashita, Sachiko Itoh, Reiko Kishi, the Japan Environment and Children’s Study (JECS) Group

    PLOS ONE   2024年6月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:p>Socioeconomic status and smoking are reportedly associated with underweight and obesity; however, their associations among pregnant women are unknown. This study aimed to investigate whether socioeconomic factors, namely educational attainment, household income, marital status, and employment status, were associated with pre-pregnancy body mass index (BMI) categories, including severe-moderate underweight (BMI ≤ 16.9 kg/m<jats:sup>2</jats:sup>), mild underweight (BMI, 17.0–18.4 kg/m<jats:sup>2</jats:sup>), overweight (BMI, 25.0–29.9 kg/m<jats:sup>2</jats:sup>), and obese (BMI ≥ 30.0 kg/m<jats:sup>2</jats:sup>) among Japanese pregnant women using data from the Japan Environment and Children’s Study (JECS). In total, pregnant women were included 96,751. Age- and parity-adjusted multivariable multinomial logistic regression analyses assessed socioeconomic factors and smoking associations with falling within abnormal BMI categories (normal BMI as the reference group). Lower education and lower household were associated with overweight and obesity, and, especially, lowest education and household income had relatively higher point estimate relative ratios (RRs) of 3.97 and 2.84, respectively. Regarding the risks for underweight, however, only junior high school education had a significantly higher RR for severely to moderately underweight. Regarding occupational status, homemakers or the unemployed had a higher RR for severe-moderate underweight, overweight, and obesity. Unmarried, divorced, or bereaved women had significantly higher RRs for mildly underweight status. Quitting smoking early in pregnancy/still smoking had higher RRs for all four not having normal BMI outcomes; however, quitting smoking before pregnancy had a higher RR only for obese individuals. Lower educational attainment and smoking are essential intervention targets for obesity and severe-moderate underweight prevention in younger women. Lower household income is also a necessary target for obesity.</jats:p>

    DOI: 10.1371/journal.pone.0304844

    researchmap

  • Association of rotating night shift work with tooth loss and severe periodontitis among permanent employees in Japan: a cross-sectional study

    Yukihiro Sato, Eiji Yoshioka, Yasuaki Saijo

    PeerJ   2024年4月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec>
    <jats:title>Background</jats:title>
    <jats:p>The modern 24/7 society demands night shift work, which is a possible risk factor for chronic diseases. This study aimed to examine the associations of rotating night shift work duration with tooth loss and severe periodontitis.</jats:p>
    </jats:sec>
    <jats:sec>
    <jats:title>Methods</jats:title>
    <jats:p>This cross-sectional study used data from a self-administered questionnaire survey conducted among 3,044 permanent employees aged 20–64 years through a Japanese web research company in 2023. The duration of rotating night shift work was assessed using a question from the Nurses’ Health Study. Tooth loss was assessed based on self-reported remaining natural teeth count. Severe periodontitis was assessed using a validated screening questionnaire comprising four questions related to gum disease, loose tooth, bone loss, and bleeding gums. We employed linear regression models for tooth loss and Poisson regression models for severe periodontitis, adjusting for demographic, health and work-related variables and socioeconomic status.</jats:p>
    </jats:sec>
    <jats:sec>
    <jats:title>Results</jats:title>
    <jats:p>Among participants included, 10.9% worked in rotating night shifts for 1–5 years, while 11.0% worked in such shifts for ≥6 years. In fully adjusted models, rotating night shift work duration of 1–5 years was associated with tooth loss (beta −0.74, 95% confidence interval (CI) [−1.55 to 0.08]) and severe periodontitis (prevalence ratio 1.80, 95% CI [1.33–2.43]); however, the association with tooth loss was not statistically significant.</jats:p>
    </jats:sec>
    <jats:sec>
    <jats:title>Conclusions</jats:title>
    <jats:p>This study supports that employees who work short-term rotating night shifts may experience poor oral conditions. Further research is needed to determine whether long-term rotating night shift work is associated with deteriorated oral health.</jats:p>
    </jats:sec>

    DOI: 10.7717/peerj.17253

    researchmap

  • Null Association Between Isolated Orofacial Clefts and Sleep Duration: A Cohort Study From the Japan Environment and Children's Study

    Yukihiro Sato, Eiji Yoshioka, Yasuaki Saijo, Yasuhito Kato, Ken Nagaya, Satoru Takahashi, Yoshiya Ito, Sumitaka Kobayashi, Yu Ait Bamai, Keiko Yamazaki, Sachiko Itoh, Chihiro Miyashita, Atsuko Ikeda-Araki, Reiko Kishi, The Japan Environment and Children’s Study (JECS) Group

    The Cleft Palate Craniofacial Journal   2024年3月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec><jats:title/><jats:p> Although children with orofacial clefts have an increased risk for sleep-disordered breathing, no studies have examined the association of sleep duration. Thus, this study aimed to examine associations between orofacial clefts and sleep duration at 1 month, 6 months, 1 year, and 3 years of age in Japan. </jats:p></jats:sec><jats:sec><jats:title/><jats:p> A cohort study from the Japan Environment and Children's Study. </jats:p></jats:sec><jats:sec><jats:title/><jats:p> This study consisted of 91 497 children, including ones with isolated cleft lip and palate (n = 69), isolated cleft lip only (n = 48), and isolated cleft palate only (n = 37), for which recruitment was undertaken during 2011 to 2014. </jats:p></jats:sec><jats:sec><jats:title/><jats:p> Seep durations (hours per day) at 1 month, 6 months, 1 year, and 3 years of age, as reported by their mothers. </jats:p></jats:sec><jats:sec><jats:title/><jats:p> In the control group, mean sleep durations and standard deviations at 1 month, 6 months, 1 year, and 3 years of age were 15.2 (2.5), 13.6 (1.9), 12.9 (1.6), and 11.6 (1.2) h, respectively. Compared to the control group, linear regression models reported effect sizes and 95% confidence intervals shorter than 1 h for sleep duration of each type of isolated orofacial cleft at each time point. </jats:p></jats:sec><jats:sec><jats:title/><jats:p> This study suggested null associations between isolated orofacial clefts and sleep duration at 1 month, 6 months, 1 year, and 3 years of age. Children with isolated orofacial clefts had sufficient mean sleep duration. </jats:p></jats:sec>

    DOI: 10.1177/10556656221128425

    researchmap

  • 北海道・東北地方の病院における産業保健活動状況―医師の働き方改革法対応状況も含めて

    Yasuaki Saijo, Yukihiro Sato, Eiji Yoshioka

    SANGYO EISEIGAKU ZASSHI   2024年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1539/sangyoeisei.2023-033-e

    researchmap

  • Factors related to the resignation and migration of physicians in public health administration agencies using nationwide survey data in Japan

    Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Yuki Kunori

    BMC Health Services Research   2023年10月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:title>Abstract</jats:title><jats:sec>
    <jats:title>Background</jats:title>
    <jats:p>Physicians in public health administration agencies (public health physicians: PHP) play important roles in public health; however, there are not enough such physicians in Japan. This study aimed to elucidate the factors related to the resignation and migration of PHPs using nationwide survey data.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Methods</jats:title>
    <jats:p>Data from the Survey of Physicians, Dentists, and Pharmacists (2010, 2012, 2014, and 2016) were analyzed. The outcome was the resignation of PHPs or migration to public health administration agencies. The explanatory variables in the resignation analysis were age, sex, workplace, and board certification status. The type of work was added as an explanatory variable in the migration analysis, and clinical specialty was added to the clinical doctor-restricted analysis. The odds ratios (ORs) of the explanatory variables were calculated using generalized estimation equations.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Results</jats:title>
    <jats:p>In the resignation analysis among PHPs, women had a significantly lower OR, whereas younger PHPs and those with board certifications had significantly higher ORs. In the migration to public health administration agencies analysis among medical doctors, women and those aged between 35 and 39 years had significantly higher ORs, but those with board certifications had significantly lower ORs. Hospital/clinic founders or directors had significantly lower ORs, but the clinic staff and ‘others/not working’ had significantly higher ORs. In the migration to public health administration agencies analysis among clinical physicians, those aged between 35 and 39 years had significantly higher ORs. Still, those with two or more board certifications had significantly lower ORs. Hospital/clinic founders or directors had significantly lower ORs, but the clinic staff had significantly higher ORs. Clinical doctors specializing in surgery and other specialties had significantly lower ORs, but those specializing in pediatrics and psychiatry/psychosomatic medicine had significantly higher ORs.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Conclusions</jats:title>
    <jats:p>Having board certifications were significantly related to the resignation of PHPs and migration to public health administration agencies. Women migrated to public health administration agencies more than men and younger PHPs were more likely to resign. However, medical doctors aged between 35 and 39 years were more likely to migrate to public health administration agencies. Similarly, clinic staff, non-clinical physicians, and those whose specialties were pediatrics and psychiatry/psychosomatic medicine were more likely to migrate to public health administration agencies.</jats:p>
    </jats:sec>

    DOI: 10.1186/s12913-023-10085-7

    researchmap

  • Trends in dental expenditures in Japan with a universal health insurance system

    Yukihiro Sato, Kakuhiro Fukai, Yuki Kunori, Eiji Yoshioka, Yasuaki Saijo

    PLOS ONE   2023年10月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec id="sec001">
    <jats:title>Background</jats:title>
    <jats:p>The government of Japan has spent a significant amount on dental healthcare, but it remains unknown how the spending varies across age, type of service, and time. This study describes trends in dental expenditures in Japan.</jats:p>
    </jats:sec>
    <jats:sec id="sec002">
    <jats:title>Methods</jats:title>
    <jats:p>This descriptive study used two national data sources: Estimates of National Medical Care Expenditure and Survey on Economic Conditions in Health Care. We obtained annual total and average per capita dental expenditures by age in Japan from 1984 to 2020 and estimated the proportions of types of service from 1996 to 2021. All costs were adjusted for the 2020 Consumer Price Index (1 US dollar ≈ 100 yen in 2020).</jats:p>
    </jats:sec>
    <jats:sec id="sec003">
    <jats:title>Results</jats:title>
    <jats:p>Total dental expenditures increased from 1.96 trillion yen in 1984 to 3.00 trillion yen in 2020. In particular, total and average per capita dental spending for older persons showed a rapid increase (total: from 185 billion yen in 1984 to 1.18 trillion yen in 2020; average per capita: from 15,500 yen in 1984 to 32,800 yen in 2020), contributing to the total amount increase. The crown restoration and prosthesis category amounted to 50.3% of the total expenditure in 1996, and this proportion declined to 32.4% by 2021. In 0–14 years persons, expenses on the crown restoration and prosthesis category decreased while the medical management category (mainly including fees for a management plan for oral diseases or oral functions) increased. In persons aged 65 years or older, expenses on the crown restoration and prosthesis category decreased, with increasing expenses in the medical management and at-home treatment categories.</jats:p>
    </jats:sec>
    <jats:sec id="sec004">
    <jats:title>Conclusion</jats:title>
    <jats:p>The amount of dental spending in Japan substantially increased from 1.96 trillion yen in 1984 to 3.00 trillion yen in 2020), a 1.53-fold increase. The observed changes in annual dental spending varied across age groups and types of service.</jats:p>
    </jats:sec>

    DOI: 10.1371/journal.pone.0292547

    researchmap

  • Association between maternal multimorbidity and preterm birth, low birth weight and small for gestational age: a prospective birth cohort study from the Japan Environment and Children’s Study

    Kentaro Nakanishi, Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Yasuhito Kato, Ken Nagaya, Satoru Takahashi, Yoshiya Ito, Sumitaka Kobayashi, Chihiro Miyashita, Atsuko Ikeda-Araki, Reiko Kishi

    BMJ Open   13 ( 3 )   2023年3月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:{BMJ}  

    <jats:sec><jats:title>Objectives</jats:title><jats:p>Multimorbidity is defined as the coexistence of two or more chronic physical or psychological conditions within an individual. The association between maternal multimorbidity and adverse perinatal outcomes such as preterm delivery and low birth weight has not been well studied. Therefore, this study aimed to investigate this association.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>We conducted a prospective cohort study using data from the Japan Environment and Children’s Study of pregnant women between 2011 and 2014. Those with data on chronic maternal conditions were included in the study and categorised as having no chronic condition, one chronic condition or multimorbidities. The primary outcomes were the incidence of preterm birth (PTB), low birth weight (LBW) and small for gestational age (SGA). Adjusted logistic regression was performed to estimate ORs (aORs) and 95% CIs.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Of the 104 062 fetal records, 86 885 singleton pregnant women were analysed. The median maternal age and body mass index were 31 years and 20.5 kg/m<jats:sup>2</jats:sup>, respectively. The prevalence of pregnant women with one or more chronic conditions was 40.2%. The prevalence of maternal multimorbidity was 6.3%, and that of PTB, LBW, and SGA were 4.6%, 8.1%, and 7.5%, respectively. Pre-pregnancy underweight women were the most common, observed in 15.6% of multimorbidity cases, followed by domestic violence from intimate partner in 13.0%. Maternal multimorbidity was significantly associated with PTB (aOR 1.50; 95% CI 1.33–1.69), LBW (aOR 1.49; 95% CI 1.35–1.63) and SGA (aOR 1.33; 95% CI 1.20–1.46).</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>Maternal multimorbidity was associated with adverse perinatal outcomes, including PTB, LBW and SGA. The risk of adverse perinatal outcomes tends to increase with a rise in the number of chronic maternal conditions. Multimorbidity becomes more prevalent among pregnant women, making our findings important for preconception counselling.</jats:p></jats:sec>

    DOI: 10.1136/bmjopen-2022-069281

    researchmap

  • Associated congenital anomalies and syndromes of 248 infants with orofacial clefts born between 2011 and 2014 in the Japan environment and children's study

    Yukihiro Sato, Eiji Yoshioka, Yasuaki Saijo, Yasuhito Kato, Ken Nagaya, Satoru Takahashi, Yoshiya Ito, Sumitaka Kobayashi, Yu Ait Bamai, Keiko Yamazaki, Sachiko Itoh, Chihiro Miyashita, Atsuko Ikeda‐Araki, Reiko Kishi, The Japan Environment and Children's Study (JECS) Group

    Congenital Anomalies   2023年1月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:title>Abstract</jats:title><jats:p>This study aimed to document the complication status of infants with orofacial clefts born between 2011 and 2014 in Japan. This was a descriptive study using data from the Japan Environment and Children's Study. Among 103 060 pregnancies, 248 infants with orofacial clefts were included (livebirth, 239; stillbirth, 4; miscarriage, 5). The items of interest were complication status of orofacial clefts: isolated (typical orofacial clefts only); multi‐malformed (orofacial clefts with unrelated major defects); syndromic (orofacial clefts with a syndrome or a chromosomal defect). Regarding the cleft subtypes, of 248 infants with orofacial clefts, 104 had cleft lip with cleft palate (CLP) (41.9%), 68 had cleft lip without cleft palate (CL) (27.4%), 58 had cleft palate without cleft lip (CP) (23.4%), and 18 were nonclassified (7.3%). In infants with CLP, the proportions of isolated, multi‐malformed, and syndromic phenotypes were 73.1%, 15.4%, and 11.5%, respectively. In infants with CL, the proportions were 79.4%, 16.2%, and 4.4%, respectively. In infants with CP, the proportions were 69.0%, 13.8%, and 17.2%, respectively. The most frequently associated congenital anomaly was congenital heart disease. In infants with syndromic CLP, 41.7% had trisomy 13. In infants with syndromic CP, 80.0% had the Pierre Robin sequence. Congenital heart disease could be the most frequently associated congenital anomaly. The most frequently associated syndrome could be trisomy 13 in those with CLP and Pierre Robin sequence in those with CP.</jats:p>

    DOI: 10.1111/cga.12496

    researchmap

  • Psychological Distress During the Coronavirus Disease 2019 Pandemic and Associated Factors Among Undergraduate Students in Japan

    Yukihiro Sato, Hiroshi Yatsuya, Yasuaki Saijo, Eiji Yoshioka, Takahiro Tabuchi

    Disaster Medicine and Public Health Preparedness   2023年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:title>Abstract</jats:title><jats:sec id="S1935789322002452_as1"><jats:title>Objective:</jats:title><jats:p>This cross-sectional study aimed to examine factors potentially associated with psychological distress among undergraduate students during the coronavirus disease 2019 pandemic in Japan.</jats:p></jats:sec><jats:sec id="S1935789322002452_as2"><jats:title>Methods:</jats:title><jats:p>We analyzed data of 958 undergraduates (median age 20 y; 56.8% women) from a Web-based, self-administered questionnaire survey conducted from August to September 2020. Prevalence ratios (PRs) for psychological distress defined as 5 points or over of the Kessler Psychological Distress Scale (K6) were calculated by Poisson regression models.</jats:p></jats:sec><jats:sec id="S1935789322002452_as3"><jats:title>Results:</jats:title><jats:p>The proportion of psychological distress was 40.0%. In the mutually-adjusted model, the following were significantly associated with psychological distress: decreases in household income to 50-99% of the prepandemic amount compared with no change (PR = 1.48), newly experiencing unpaid wages compared with no experience (PR = 1.44), insufficient money to buy necessities compared with no shortage (PR = 1.45), receiving a student loan or scholarship compared with none (PR = 1.27), and communication 1 to 3 times a month compared with at least once a week (PR = 1.22). In contrast, school closure during the pandemic compared with no closure was inversely associated with psychological distress (PR = 0.78).</jats:p></jats:sec><jats:sec id="S1935789322002452_as4"><jats:title>Conclusions:</jats:title><jats:p>Among undergraduate students in Japan, economic difficulties significantly predicted psychological distress.</jats:p></jats:sec>

    DOI: 10.1017/dmp.2022.245

    researchmap

  • Factors related to Japanese internal medicine doctors’ retention or migration to rural areas: a nationwide retrospective cohort study

    Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Yuki Kunori

    Environmental Health and Preventive Medicine   2023年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1265/ehpm.22-00169

    researchmap

  • Evaluating association of smoking status during pregnancy with adverse birth outcomes using urinary cotinine concentration: The Japan environment and Children's study (JECS)

    Yuki Kunori, Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Tomoko Kanaya, Kentaro Nakanishi, Yasuhito Kato, Ken Nagaya, Satoru Takahashi, Yoshiya Ito, Sachiko Itoh, Sumitaka Kobayashi, Chihiro Miyashita, Atsuko Ikeda, Reiko Kishi

    Environmental Research   2022年12月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.envres.2022.114302

    researchmap

  • Severity of low pre-pregnancy body mass index and perinatal outcomes: the Japan Environment and Children’s Study

    Kentaro Nakanishi, Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Yasuhito Kato, Ken Nagaya, Satoru Takahashi, Yoshiya Ito, Sumitaka Kobayashi, Chihiro Miyashita, Atsuko Ikeda-Araki, Reiko Kishi, the Japan Environment and Children’s Study (JECS) Group

    BMC Pregnancy and Childbirth   2022年12月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:title>Abstract</jats:title><jats:sec>
    <jats:title>Background</jats:title>
    <jats:p>The extremes of maternal pre-pregnancy body mass index (BMI) are known to be risk factors associated with obstetric and adverse perinatal outcomes. Among Japanese women aged 20 years or older, the prevalence of underweight (BMI &lt; 18.5 kg/m<jats:sup>2</jats:sup>) was 11.5% in 2019. Maternal thinness is a health problem caused by the desire to become slim. This study aimed to investigate the association between the severity of maternal low pre-pregnancy BMI and adverse perinatal outcomes, including preterm birth (PTB), low birth weight (LBW), and small-for-gestational age (SGA).</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Methods</jats:title>
    <jats:p>We conducted a prospective cohort study using data from the Japan Environment and Children’s Study, which recruited pregnant individuals between 2011 and 2014. Pre-pregnancy BMI was categorized as severe-moderate underweight (BMI <jats:underline>&lt;</jats:underline> 16.9 kg/m<jats:sup>2</jats:sup>), mild underweight (BMI, 17.0–18.4 kg/m<jats:sup>2</jats:sup>), low-normal weight (BMI, 18.5–19.9 kg/m<jats:sup>2</jats:sup>), high-normal weight (BMI, 20.0–22.9 kg/m<jats:sup>2</jats:sup>), overweight (BMI, 23.0–24.9 kg/m<jats:sup>2</jats:sup>), and obese (BMI ≥ 25.0 kg/m<jats:sup>2</jats:sup>). The high-normal weight group was used as the reference for statistical analyses. Adjusted logistic regression was performed to evaluate the association between pre-pregnancy BMI and PTB, LBW, and SGA.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Results</jats:title>
    <jats:p>Of 92,260 singleton pregnant individuals, the prevalence was 2.7% for severe-moderate underweight, 12.9% for mild underweight, and 24.5% for low-normal weight. The prevalence of adverse outcomes was 4.6% for PTB, 8.1% for LBW, and 7.6% for SGA. The adjusted odds ratios (aORs) for PTB were 1.72 (95% confidence interval [CI], 1.46–2.03) for severe-moderate underweight and 1.26 (95% CI, 1.14–1.39) for mild underweight. The aORs of LBW were 2.55 (95% CI, 2.27–2.86) for severe-moderate underweight, 1.64 (95% CI, 1.53–1.76) for mild underweight, and 1.23 (95% CI, 1.16–1.31) for low-normal weight. The aORs of SGA were 2.53 (95% CI, 2.25–2.84) for severe-moderate underweight, 1.66 (95% CI, 1.55–1.79) for mild underweight, and 1.29 (95% CI, 1.21–1.38) for low-normal weight.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Conclusions</jats:title>
    <jats:p>A dose-response relationship was found between the severity of low pre-pregnancy BMI and PTB, LBW, and SGA. Even low-normal BMI (18.5–19.9 kg/m<jats:sup>2</jats:sup>) increased the risk of LBW and SGA. This study provides useful information for pre-conception counseling in lean individuals.</jats:p>
    </jats:sec>

    DOI: 10.1186/s12884-022-04418-3

    researchmap

  • Trends in insurance claims for dental gold-silver-palladium alloy in private dental clinics in Japan from 2006 to 2021

    Yukihiro Sato, Kakuhiro Fukai, Yuki Kunori, Eiji Yoshioka, Yasuaki Saijo

    2022年9月

     詳細を見る

  • Associations between social fragmentation, socioeconomic deprivation and suicide risk across 1887 municipalities in Japan, 2009–2017: a spatial analysis using the Bayesian hierarchical model

    Eiji Yoshioka, Sharon Hanley, Yukihiro Sato, Yasuaki Saijo

    BMJ Open   2022年8月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec><jats:title>Objective</jats:title><jats:p>Previous studies have indicated that spatial variation in suicide mortality is associated with area-specific socioeconomic characteristics, such as socioeconomic deprivation and social fragmentation. However, most of these studies have been conducted in the West and findings from Asian countries are limited. This study aims to investigate associations between socioeconomic characteristics and suicide mortality rates across 1887 municipalities in Japan between 2009 and 2017. We also assessed these associations by gender and age group.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Suicide data were obtained from the suicide statistics of the Ministry of Health, Labour and Welfare in Japan and included information on the number of suicides by gender, age and municipality location. Social fragmentation, socioeconomic deprivation and urbanicity were used as socioeconomic characteristics in this study and were created from survey data obtained from the 2010 census. Bayesian hierarchical models were used to examine associations between socioeconomic characteristics and suicide risk.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Suicide rates were significantly higher in municipalities with higher levels of deprivation, with a rate ratio of 1.13 (95% credible interval: 1.10 to 1.17) in the highest quartile compared with the lowest. Higher levels of urbanicity had significantly lower suicide rates, with a rate ratio of 0.79 (95% credible interval: 0.77 to 0.82) in the highest quartile compared with the lowest. However, associations between exposures and suicide varied considerably by gender and age. Among both men and women aged 0–39 years, fragmentation was significantly associated with suicide, with rate ratios of 1.07 and 1.15 for men and women, respectively, in the highest quartile compared with the lowest.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>Suicide prevention in Japan should particularly focus on areas with high levels of deprivation or low levels of urbanicity. Furthermore, young Japanese people residing in the most fragmented municipalities were also at high risk of suicide, and appropriate measures need to be taken.</jats:p></jats:sec>

    DOI: 10.1136/bmjopen-2022-063255

    researchmap

  • Cross-sectional associations between effort-reward imbalance at work and oral diseases in Japan

    Yukihiro Sato, Eiji Yoshioka, Masanori Takekawa, Yasuaki Saijo

    PeerJ   2022年7月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec>
    <jats:title>Background</jats:title>
    <jats:p>Psychological stress is a potential risk factor for oral diseases. However, evidence for the association between work stress and oral diseases is scarce. We aimed to examine the associations of work stress, according to the effort-reward imbalance model, with dental caries, periodontal status, and tooth loss.</jats:p>
    </jats:sec>
    <jats:sec>
    <jats:title>Methods</jats:title>
    <jats:p>This cross-sectional study included 184 regular employees at a medical university and 435 registrants of a web research company. Work stress was assessed using the effort-reward imbalance (ERI) ratio. Dental caries and tooth loss were assessed according to the number of decayed, filled, and missing teeth (DMFT) among the set of 28 teeth. Periodontal status was assessed using a self-administered questionnaire. For the DMFT, a linear regression model was used to estimate the unstandardised coefficients. A Poisson regression model was used to estimate the prevalence ratios (PRs) of poor periodontal status.</jats:p>
    </jats:sec>
    <jats:sec>
    <jats:title>Results</jats:title>
    <jats:p>Among medical university employees and employees enrolled from among the registrants of an online research company, a one-unit increase in the ERI ratio was associated with −2.81 (95% CI [−4.70 to −0.92]; <jats:italic>p</jats:italic>-value = 0.004) and −0.84 (95% CI [−1.80 to 0.12]; <jats:italic>p</jats:italic>-value = 0.085) changes in the DMFT from adjusted linear regression models, respectively. In employees enrolled from among the registrants of an online research company, a one-unit increase in the ERI ratio was also associated with 1.55 (95% CI [1.04–2.32]; <jats:italic>p</jats:italic>-value = 0.032) of the PR for poor periodontal status based on Poisson regression models.</jats:p>
    </jats:sec>
    <jats:sec>
    <jats:title>Conclusion</jats:title>
    <jats:p>ERI at work was associated with an increased risk of poor periodontal status.</jats:p>
    </jats:sec>

    DOI: 10.7717/peerj.13792

    researchmap

  • Impact of the COVID-19 pandemic on suicide rates in Japan through December 2021: An interrupted time series analysis

    Eiji Yoshioka, Sharon J. B. Hanley, Yukihiro Sato, Yasuaki Saijo

    The Lancet Regional Health - Western Pacific   2022年7月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.lanwpc.2022.100480

    researchmap

  • Lower Respiratory Tract Infections and Orofacial Clefts: A Prospective Cohort Study From the Japan Environment and Children’s Study

    Yukihiro Sato, Eiji Yoshioka, Yasuaki Saijo, Toshinobu Miyamoto, Hiroshi Azuma, Yusuke Tanahashi, Yoshiya Ito, Sumitaka Kobayashi, Machiko Minatoya, Yu Ait Bamai, Keiko Yamazaki, Sachiko Itoh, Chihiro Miyashita, Atsuko Ikeda, Reiko Kishi, The Japan Environment and Children’s Study (JECS) Group

    Journal of Epidemiology   2022年6月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2188/jea.je20200438

    researchmap

  • Cross-sectional associations between oral diseases and work productivity loss among regular employees in Japan

    Yukihiro SATO, Eiji YOSHIOKA, Masanori TAKEKAWA, Yasuaki SAIJO

    Industrial Health   2022年3月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2486/indhealth.2021-0274

    researchmap

  • Relations of mold, stove, and fragrance products on childhood wheezing and asthma: A prospective cohort study from the Japan Environment and Children's Study

    Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Hiroshi Azuma, Yusuke Tanahashi, Yoshiya Ito, Sumitaka Kobayashi, Machiko Minatoya, Yu Ait Bamai, Keiko Yamazaki, Sachiko Itoh, Chihiro Miyashita, Atsuko Ikeda, Reiko Kishi, Michihiro Kamijima, Shin Yamazaki, Yukihiro Ohya, Nobuo Yaegashi, Koichi HASHIMOTO, Chisato Mori, Ito Shuichi, Zentaro Yamagata, Hidekuni Inadera, Takeo Nakayama, Hiroyasu Iso, Masayuki Shima, Youichi Kurozawa, Narufumi Suganuma, Koichi Kusuhara, 貴彦 加藤

    Indoor Air   2022年1月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1111/ina.12931

    researchmap

  • 出身地、入試形態、奨学金と地方勤務の意思との関連:旭川医科大学卒業生質問紙調査

    Yukihiro Sato

    北海道公衆衛生学雑誌   2022年

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    researchmap

  • Maternal psychological distress, education, household income, and congenital heart defects: a prospective cohort study from the Japan environment and children’s study

    Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Hiroshi Azuma, Yusuke Tanahashi, Yoshiya Ito, Sumitaka Kobayashi, Machiko Minatoya, Yu Ait Bamai, Keiko Yamazaki, Sachiko Itoh, Chihiro Miyashita, Atsuko Ikeda-Araki, Reiko Kishi, the Japan Environment and Children’s Study (JECS) Group

    BMC Pregnancy and Childbirth   2021年12月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:title>Abstract</jats:title><jats:sec>
    <jats:title>Background</jats:title>
    <jats:p>The influence of maternal psychological distress on infant congenital heart defects (CHDs) has not been thoroughly investigated. Furthermore, there have been no reports on the combined effect of maternal psychological distress and socioeconomic status on infant CHDs. This study aimed to examine whether maternal psychological distress, socioeconomic status, and their combinations were associated with CHD.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Methods</jats:title>
    <jats:p>We conducted a prospective cohort study using data from the Japan Environment and Children’s Study, which recruited pregnant women between 2011 and 2014. Maternal psychological distress was evaluated using the Kessler Psychological Distress Scale in the first trimester, while maternal education and household income were evaluated in the second and third trimesters. The outcome of infant CHD was determined using the medical records at 1 month of age and/or at birth. Crude- and confounder-adjusted logistic regression analyses were performed to evaluate the association between maternal psychological distress and education and household income on infant CHD.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Results</jats:title>
    <jats:p>A total of 93,643 pairs of mothers and infants were analyzed, with 1.1% of infants having CHDs. Maternal psychological distress had a significantly higher odds ratio in the crude analysis but not in the adjusted analysis, while maternal education and household income were statistically insignificant. In the analysis of the combination variable of lowest education and psychological distress, the P for trend was statistically significant in the crude and multivariate model excluding anti-depressant medication, but the significance disappeared in the full model (P = 0.050).</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Conclusions</jats:title>
    <jats:p>The combination of maternal psychological distress and lower education may be a possible indicator of infant CHD.</jats:p>
    </jats:sec>

    DOI: 10.1186/s12884-021-04001-2

    researchmap

  • Association between Early Life Child Development and Family Dog Ownership: A Prospective Birth Cohort Study of the Japan Environment and Children’s Study

    Machiko Minatoya, Atsuko Ikeda, Chihiro Miyashita, Sachiko Itoh, Sumitaka Kobayashi, Keiko Yamazaki, Yu Ait Bamai, Yasuaki Saijo, Yukihiro Sato, Yoshiya Ito, Reiko Kishi, The Japan Environment and Children’s Study Group

    International Journal of Environmental Research and Public Health   2021年7月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:p>Pets may play a role in the social-emotional development of children. In particular, some studies have suggested that family dog ownership is associated with better health outcomes. To date, no study has assessed child development in association with dog ownership of different time points. The purpose of the current study was primary to investigate whether “ever” family dog ownership was associated with early child development, and secondary to further examine whether associations between family dog ownership and early child development differ among family dog ownership of status, including “past only”, “current only”, and “always” groups, using the data of family dog ownership obtained at multiple time points. Associations between family dog ownership and infant development at 3 years of age were examined using data from a nationwide prospective birth cohort study, the Japan Environment and Children’s Study (n = 78,941). “Ever” family dog ownership was categorized to “past only”, “current only”, and “always”. We observed that children with “ever” family dog ownership showed a significantly decreased risk of developmental delay in the communication (odds ratio [OR] = 0.87; 95% confidence interval [CI]: 0.78, 0.96), gross motor (OR = 0.83; 95% CI: 0.76, 0.92), problem-solving (OR = 0.89; 95% CI: 0.83, 0.96) and personal-social (OR = 0.86; 95% CI: 0.72, 0.92) domains compared to children with “never” family dog ownership. Furthermore, a significantly decreased risk of developmental delay in gross motor function was observed in association with living with dogs in the “past only” (OR = 0.83; 95% CI: 0.73, 0.95) and “always” (OR = 0.86; 95% CI: 0.75, 0.98). In addition, a decreased risk of developmental delay in the problem-solving domain was associated with “past” family dog ownership (OR = 0.87; 95% CI: 0.79, 0.97) and in the personal-social domain was associated with “always” family dog ownership (OR = 0.81; 95% CI = 0.68, 0.95). Given the possible positive association between early life child development and family dog ownership, living with dogs may be an important factor to be considered when assessing child development.</jats:p>

    DOI: 10.3390/ijerph18137082

    researchmap

  • Geography of suicide in Japan: spatial patterning and rural–urban differences

    Eiji Yoshioka, Sharon J. B. Hanley, Yukihiro Sato, Yasuaki Saijo

    Social Psychiatry and Psychiatric Epidemiology   2021年5月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:title>Abstract</jats:title><jats:sec>
    <jats:title>Purpose</jats:title>
    <jats:p>There are notable geographic variations in incidence rates of suicide both in Japan and globally. Previous studies have found that rurality/urbanity shapes intra-regional differences in suicide mortality, and suicide risk associated with rurality can vary significantly by gender and age. This study aimed to examine spatial patterning of and rural–urban differences in suicide mortality by gender and age group across 1887 municipalities in Japan between 2009 and 2017.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Methods</jats:title>
    <jats:p>Suicide data were obtained from suicide statistics of the Ministry of Health, Labour and Welfare in Japan. We estimated smoothed standardized mortality ratios for suicide for each of the municipalities and investigated associations with level of rurality/urbanity using Bayesian hierarchical models before and after adjusting for socioeconomic characteristics.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Results</jats:title>
    <jats:p>The results of the multivariate analyses showed that, for males aged 0–39 and 40–59 years, rural residents tended to have a higher suicide risk compared to urban ones. For males aged 60+ years, a distinct rural–urban gradient in suicide risk was not observed. For females aged 0–39 years, a significant association between suicide risk and rurality was not observed, while for females aged 40–59 years and females aged 60 years or above, the association was a U-shaped curve.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Conclusion</jats:title>
    <jats:p>Our results showed that geographical distribution of and rural–urban differences in suicide mortality in Japan differed substantially by gender and age. These findings suggest that it is important to take demographic factors into consideration when municipalities allocate resources for suicide prevention.</jats:p>
    </jats:sec>

    DOI: 10.1007/s00127-020-01978-7

    researchmap

  • Work stress and oral conditions: a systematic review of observational studies

    Yukihiro Sato, Yasuaki Saijo, Eiji Yoshioka

    BMJ Open   2021年5月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec><jats:title>Objectives</jats:title><jats:p>Although psychological stress is a risk factor for oral diseases, there seems to be no review on work stress. This study aimed to review the evidence on the association between work stress and oral conditions, including dental caries, periodontal status and tooth loss.</jats:p></jats:sec><jats:sec><jats:title>Design</jats:title><jats:p>A systematic review of published observational studies.</jats:p></jats:sec><jats:sec><jats:title>Data sources</jats:title><jats:p>A systematic literature search was conducted in PubMed and Scopus databases on 12 August 2020.</jats:p></jats:sec><jats:sec><jats:title>Study selection</jats:title><jats:p>Articles were screened based on the following inclusion criteria: published after 1966; in English only; epidemiological studies on humans (except case studies, reviews, letters, commentaries and editorials); and examined the association of work stress with dental caries, periodontal status and tooth loss.</jats:p></jats:sec><jats:sec><jats:title>Data extraction</jats:title><jats:p>Data were extracted from eligible studies. A quality assessment was conducted using the Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Of 402 articles identified, 11 met the inclusion criteria, and 1 study assessed the association of work stress with dental caries and periodontal status. Of 11 studies, 1 reported a non-significant association between work stress and dental caries; 8 of 9 studies reported a significant association between work stress and worse periodontal status; and 1 of 2 studies reported a significant association between work stress and tooth loss. Nine of 11 studies were cross-sectional, while the remaining 2 studies had unclear methodology. Only two studies were sufficiently adjusted for potential confounders. Eight studies assessed work stress but did not use the current major measures. Three studies were rated as fair, while eight studies had poor quality.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>There is a lack of evidence on the association of work stress with dental caries and tooth loss. Eight studies suggested potential associations between periodontal status and work stress. Cohort studies using the major work stress measures and adjusting for the potential confounders are needed.</jats:p></jats:sec>

    DOI: 10.1136/bmjopen-2020-046532

    researchmap

  • Parental educational level and childhood wheezing and asthma: A prospective cohort study from the Japan Environment and Children’s Study

    Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Toshinobu Miyamoto, Hiroshi Azuma, Yusuke Tanahashi, Yoshiya Ito, Sumitaka Kobayashi, Machiko Minatoya, Yu Ait Bamai, Keiko Yamazaki, Sachiko Itoh, Chihiro Miyashita, Atsuko Ikeda, Reiko Kishi, the Japan Environment and Children’s Study (JECS) Group

    PLOS ONE   2021年4月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec id="sec001">
    <jats:title>Background</jats:title>
    <jats:p>The influence of mothers’ and fathers’ educational levels in separate evaluations of asthma has not been fully investigated. This study aims to examine the associations of the mother’s and fathers’ educational levels with childhood wheeze and asthma adjusting for crude and pre-and post-natal modifiable risk factors.</jats:p>
    </jats:sec>
    <jats:sec id="sec002">
    <jats:title>Methods</jats:title>
    <jats:p>We conducted a prospective cohort study using data from the Japan Environment and Children’s Study, which recruited pregnant women from 2011 to 2014. The mother’s and father’s educational levels were surveyed by a questionnaire during the pregnancy, and childhood wheezing and doctor-diagnosed asthma were estimated using a 3-year questionnaire. Multilevel logistic regression analysis was performed to evaluate the association between the mother’s and father’s educational levels and childhood wheezing and asthma, adjusted for pre-and post-natal factors.</jats:p>
    </jats:sec>
    <jats:sec id="sec003">
    <jats:title>Results</jats:title>
    <jats:p>A total of 69,607 pairs of parents and their single infants were analyzed. We found 17.3% of children had wheezing and 7.7% had asthma. In crude analyses, lower educational level of parents was associated with an increased risk of childhood wheezing and asthma. After full adjustment, a lower educational level of mothers was associated with an increased risk of childhood asthma (junior high school (reference: high school); odds ratio (OR): 1.17, 95% CI, 1.01–1.36), and higher educational level, especially the mother’s, was associated with an increased risk of childhood wheezing (technical junior college, technical/vocational college, or associate degree (ECD3); OR: 1.12, 95% CI, 1.06–1.18, bachelor’s degree, or postgraduate degree; OR: 1.10, 95% CI, 1.03–1.18), and asthma (ECD3; OR: 1.13, 95% CI, 1.04–1.21).</jats:p>
    </jats:sec>
    <jats:sec id="sec004">
    <jats:title>Conclusions</jats:title>
    <jats:p>Parents’ lower educational level was a crude risk factor for childhood wheezing and asthma. However, an increased risk of wheezing due to mothers’ higher educational level was found after adjusting for pre-and post-natal factors.</jats:p>
    </jats:sec>

    DOI: 10.1371/journal.pone.0250255

    researchmap

  • Population Attributable Fractions of Modifiable Risk Factors for Nonsyndromic Orofacial Clefts: A Prospective Cohort Study From the Japan Environment and Children’s Study

    Yukihiro Sato, Eiji Yoshioka, Yasuaki Saijo, Toshinobu Miyamoto, Kazuo Sengoku, Hiroshi Azuma, Yusuke Tanahashi, Yoshiya Ito, Sumitaka Kobayashi, Machiko Minatoya, Yu Ait Bamai, Keiko Yamazaki, Sachiko Itoh, Chihiro Miyashita, Atsuko Ikeda, Reiko Kishi, the Japan Environment and Children’s Study (JECS) Group

    Journal of Epidemiology   2021年4月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2188/jea.je20190347

    researchmap

  • Trajectories of the Psychological Status of Mothers of Infants With Nonsyndromic Orofacial Clefts: A Prospective Cohort Study From the Japan Environment and Children’s Study

    Yukihiro Sato, Eiji Yoshioka, Yasuaki Saijo, Toshinobu Miyamoto, Kazuo Sengoku, Hiroshi Azuma, Yusuke Tanahashi, Yoshiya Ito, Sumitaka Kobayashi, Machiko Minatoya, Yu Ait Bamai, Keiko Yamazaki, Sachiko Ito, Chihiro Miyashita, Atsuko Araki, Reiko Kishi, Japan Environment and Children’s Study (JECS) Group

    The Cleft Palate-Craniofacial Journal   2021年3月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec><jats:title>Objective:</jats:title><jats:p>This study examined psychological status trajectories of mothers of infants with nonsyndromic orofacial clefts in Japan.</jats:p></jats:sec><jats:sec><jats:title>Design:</jats:title><jats:p>Prospective cohort study.</jats:p></jats:sec><jats:sec><jats:title>Setting:</jats:title><jats:p>Data from the Japan Environment and Children’s Study.</jats:p></jats:sec><jats:sec><jats:title>Participants:</jats:title><jats:p>Infants with a nonsyndromic cleft (N = 148) including cleft lip and palate (CLP; n = 72), cleft lip (CL; n = 46), and cleft palate (CP; n = 30). The control group included unaffected infants (N = 84 454).</jats:p></jats:sec><jats:sec><jats:title>Main Outcome Measures:</jats:title><jats:p>At 15 weeks and 27 weeks of pregnancy and 12 months after birth, the Kessler Psychological Distress Scale (clinical cutoff ≥5) was used. At 1 month and 6 months after birth, the Edinburgh Postnatal Depression Scale (clinical cutoff ≥9) was used.</jats:p></jats:sec><jats:sec><jats:title>Results:</jats:title><jats:p>Prenatal diagnosis rates were unavailable. Mothers of infants with CLP had higher psychological distress than controls at 27 weeks of pregnancy (prevalence ratio [PR] = 1.36, 95% CI: 1.06-1.74) and postnatal depression at 1 month after birth (PR = 2.21, 95% CI: 1.53-3.19). Mothers of infants with CP showed heightened psychological distress at 27 weeks of pregnancy (PR = 1.62, 95% CI: 1.21-2.17) and postnatal depression 6 months after birth (PR = 1.86, 95% CI: 1.01-3.43). There was no significant association between CL and maternal psychological status. At 12 months after birth, no differences in distress were found between mothers of infants with a cleft and controls.</jats:p></jats:sec><jats:sec><jats:title>Conclusions:</jats:title><jats:p>Mothers of infants with orofacial clefts may need psychosocial support, particularly during pregnancy and the first year after birth.</jats:p></jats:sec>

    DOI: 10.1177/1055665620951399

    researchmap

  • Student Loans and Psychological Distress: A Cross-sectional Study of Young Adults in Japan

    Yukihiro Sato, Richard G. Watt, Yasuaki Saijo, Eiji Yoshioka, Ken Osaka

    Journal of Epidemiology   2020年10月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2188/jea.je20190057

    researchmap

  • Factors correlating with serum birch pollen IgE status in pregnant women in Hokkaido, Japan: The Japan Environment and Children's Study (JECS)

    Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Toshinobu Miyamoto, Kazuo Sengoku, Yoshiya Ito, Sachiko Itoh, Chihiro Miyashita, Atsuko Araki, Reiko Kishi, Michihiro Kamijima, Shin Yamazaki, Yukihiro Ohya, Reiko Kishi, Nobuo Yaegashi, Koichi Hashimoto, Chisato Mori, Shuichi Ito, Zentaro Yamagata, Hidekuni Inadera, Takeo Nakayama, Hiroyasu Iso, Masayuki Shima, Youichi Kurozawa, Narufumi Suganuma, Koichi Kusuhara, Takahiko Katoh

    World Allergy Organization Journal   2020年6月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.waojou.2020.100128

    researchmap

  • Effort–reward imbalance at work and tooth loss: a cross-sectional study from the J-SHINE project

    Yukihiro SATO, Toru TSUBOYA, Jun AIDA, Yasuaki SAIJO, Eiji YOSHIOKA, Ken OSAKA

    Industrial Health   2020年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2486/indhealth.2018-0226

    researchmap

  • Higher Density of Primary Care Facilities Is Inversely Associated with Ischemic Heart Disease Mortality, but Not with Stroke Mortality: A Japanese Secondary Medical Service Area Level Ecological Count Data

    Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato

    The Tohoku Journal of Experimental Medicine   2020年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1620/tjem.251.217

    researchmap

  • Acute myocardial infarction and stoke after the enactment of smoke-free legislation in public places in Bibai city: data analysis of hospital admissions and ambulance transports

    Yasuaki Saijo, Akira Ido, Yukihiro Sato, Eiji Yoshioka, Takahiko Yoshida

    Hypertension Research   2019年11月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1038/s41440-019-0299-2

    researchmap

  • Does the Type of Temporary Housing Make a Difference in Social Participation and Health for Evacuees of the Great East Japan Earthquake and Tsunami? A Cross-Sectional Study

    Taro Kusama, Jun Aida, Kemmyo Sugiyama, Yusuke Matsuyama, Shihoko Koyama, Yukihiro Sato, Takafumi Yamamoto, Ayaka Igarashi, Toru Tsuboya, Ken Osaka

    Journal of Epidemiology   2019年10月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2188/jea.je20180080

    researchmap

  • Identifying a risk score for childhood obesity based on predictors identified in pregnant women and 1-year-old infants: An analysis of the data of the Hokkaido Study on Environment and Children's Health.

    Saijo Y, Ito Y, Eiji Yoshioka, Yukihiro Sato, Minatoya M, Araki A, Miyashita C, Kishi R

    Clinical pediatric endocrinology : case reports and clinical investigations : official journal of the Japanese Society for Pediatric Endocrinology   2019年7月

     詳細を見る

    掲載種別:研究論文(学術雑誌)  

    This study aimed to construct a childhood obesity risk index based on predictors identified in pregnant women and 1-yr-old infants. The primary outcome was an identified obesity index of > 20% at 6-8 yr of age. Of a total sample size of 6,846 mother-child pairs, 80% and 20% were randomly allocated to the derivation and validation cohorts, respectively. For the derivation cohort, univariate and multivariate logistic regression analyses of data were conducted to identify the final predictors to determine the childhood obesity risk score algorithm. These included pre-pregnancy body mass index (BMI), child's gender, smoking during pregnancy, education, and obesity index at one yr of age. The β coefficients for categories of predictor variables were each divided by the smallest value among them. The quotient was rounded off to the integer and assigned to the risk score, and a value of zero was assigned to reference categories. A total risk score was calculated for each individual. A cutoff point ≥ 16 had 22.2% and 21.8% positive predictive values in the derivation and validation cohorts, respectively. In conclusion, the childhood obesity risk score algorithm was constructed based on generic predictors that can be easily obtained from maternal and child health handbooks.

    DOI: 10.1297/cpe.28.81

    PubMed

    researchmap

  • 医療系大学生の社会関係資本及び社会的スキルと精神的健康との関連

    智美 阿部, 潤 相田, 奏 伊藤, 志郎 北田, 伸吾 江角, 透 坪谷, 祐輔 松山, 遊洋 佐藤, 彩夏 五十嵐, 健 小坂

    日本健康教育学会誌   2019年5月

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.11260/kenkokyoiku.27.143

    researchmap

  • Does Cigarette Smoking Increase Traffic Accident Death During 20 Years Follow-up in Japan? The Ibaraki Prefectural Health Study

    Ayaka Igarashi, Jun Aida, Toshimi Sairenchi, Toru Tsuboya, Kemmyo Sugiyama, Shihoko Koyama, Yusuke Matsuyama, Yukihiro Sato, Ken Osaka, Hitoshi Ota

    Journal of Epidemiology   2019年5月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2188/jea.je20170330

    researchmap

  • Temporary employment and tooth loss: a cross-sectional study from the J-SHINE study

    Yukihiro Sato, Toru Tsuboya, Richard G. Watt, Jun Aida, Ken Osaka

    BMC Oral Health   2018年12月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1186/s12903-018-0488-4

    researchmap

  • Sleep duration and remaining teeth among older people

    Shihoko Koyama, Jun Aida, Noriko Cable, Toru Tsuboya, Yusuke Matsuyama, Yukihiro Sato, Tatsuo Yamamoto, Katsunori Kondo, Ken Osaka

    Sleep Medicine   2018年12月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.sleep.2018.07.020

    researchmap

  • Generalized and particularized trust for health between urban and rural residents in Japan: A cohort study from the JAGES project

    Yukihiro Sato, Jun Aida, Toru Tsuboya, Kokoro Shirai, Shihoko Koyama, Yusuke Matsuyama, Katsunori Kondo, Ken Osaka

    Social Science &amp; Medicine   2018年4月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.socscimed.2018.02.015

    researchmap

  • Does the Type of Residential Housing Matter for Depressive Symptoms in the Aftermath of a Disaster? Insights from the Great East Japan Earthquake and Tsunami

    Yuri Sasaki, Jun Aida, Taishi Tsuji, Yasuhiro Miyaguni, Yukako Tani, Shihoko Koyama, Yusuke Matsuyama, Yukihiro Sato, Toru Tsuboya, Yuiko Nagamine, Yoshihito Kameda, Tami Saito, Kazuhiro Kakimoto, Katsunori Kondo, Ichiro Kawachi

    American Journal of Epidemiology   2018年3月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1093/aje/kwx274

    researchmap

  • Social Inequalities in Secondhand Smoke Among Japanese Non-smokers: A Cross-Sectional Study

    Yusuke Matsuyama, Jun Aida, Toru Tsuboya, Shihoko Koyama, Yukihiro Sato, Atsushi Hozawa, Ken Osaka

    Journal of Epidemiology   2018年

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2188/jea.je20160184

    researchmap

  • Risk of mortality during and after the 2011 Great East Japan Earthquake and Tsunami among older coastal residents

    Jun Aida, Hiroyuki Hikichi, Yusuke Matsuyama, Yukihiro Sato, Toru Tsuboya, Takahiro Tabuchi, Shihoko Koyama, S. V. Subramanian, Katsunori Kondo, Ken Osaka, Ichiro Kawachi

    Scientific Reports   2017年11月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:title>Abstract</jats:title><jats:p>The Japan Gerontological Evaluation Study is a nationwide cohort study of individuals aged 65 years and older established in July 2010. Seven months later, one of the study field sites was directly in the line of the 2011 Great East Japan Earthquake and Tsunami. Despite the 1-hour warning interval between the earthquake and tsunami, many coastal residents lost their lives. We analyzed the risk of all-cause mortality on the day of the disaster as well as in the 38-month interval after the disaster. Among 860 participants, 33 (3.8%) died directly because of the tsunami and an additional 95 people died during the 38-month follow-up period. Individuals with depressive symptoms had elevated risk of mortality on the day of the disaster (odds ratio = 3.90 [95% CI: 1.13, 13.47]). More socially connected people also suffered increased risk of mortality, although these estimates were not statistically significant. In contrast, after the disaster, frequent social interactions reverted back to predicting improved survival (hazard ratio = 0.46 (95% CI: 0.26, 0.82)). Depressive symptoms and stronger social connectedness were associated with increased risk of mortality on the day of the disaster. After the disaster, social interactions were linked to improved survival.</jats:p>

    DOI: 10.1038/s41598-017-16636-3

    researchmap

  • Dental Status and Compression of Life Expectancy with Disability

    Y. Matsuyama, J. Aida, R.G. Watt, T. Tsuboya, S. Koyama, Y. Sato, K. Kondo, K. Osaka

    Journal of Dental Research   2017年8月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:p> This study examined whether the number of teeth contributes to the compression of morbidity, measured as a shortening of life expectancy with disability, an extension of healthy life expectancy, and overall life expectancy. A prospective cohort study was conducted. A self-reported baseline survey was given to 126,438 community-dwelling older people aged ≥65 y in Japan in 2010, and 85,161 (67.4%) responded. The onset of functional disability and all-cause mortality were followed up for 1,374 d (follow-up rate = 96.1%). A sex-stratified illness-death model was applied to estimate the adjusted hazard ratios (HRs) for 3 health transitions (healthy to dead, healthy to disabled, and disabled to dead). Absolute differences in life expectancy, healthy life expectancy, and life expectancy with disability according to the number of teeth were also estimated. Age, denture use, socioeconomic status, health status, and health behavior were adjusted. Compared with the edentulous participants, participants with ≥20 teeth had lower risks of transitioning from healthy to dead (adjusted HR, 0.58 [95% confidence interval (CI), 0.50–0.68] for men and 0.70 [95% CI, 0.57–0.85] for women) and from healthy to disabled (adjusted HR, 0.52 [95% CI, 0.44–0.61] for men and 0.58 [95% CI, 0.49–0.68] for women). They also transitioned from disabled to dead earlier (adjusted HR, 1.26 [95% CI, 0.99–1.60] for men and 2.42 [95% CI, 1.72–3.38] for women). Among the participants aged ≥85 y, those with ≥20 teeth had a longer life expectancy (men: +57 d; women: +15 d) and healthy life expectancy (men: +92 d; women: +70 d) and a shorter life expectancy with disability (men: –35 d; women: –55 d) compared with the edentulous participants. Similar associations were observed among the younger participants and those with 1 to 9 or 10 to 19 teeth. The presence of remaining teeth was associated with a significant compression of morbidity: older Japanese adults’ life expectancy with disability was compressed by 35 to 55 d within the follow-up of 1,374 d. </jats:p>

    DOI: 10.1177/0022034517713166

    researchmap

  • Reducing depressive symptoms after the Great East Japan Earthquake in older survivors through group exercise participation and regular walking: a prospective observational study

    Taishi Tsuji, Yuri Sasaki, Yusuke Matsuyama, Yukihiro Sato, Jun Aida, Katsunori Kondo, Ichiro Kawachi

    BMJ Open   2017年3月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec><jats:title>Objectives</jats:title><jats:p>Survivors of the 2011 Great East Japan Earthquake have an increased risk of depressive symptoms. We sought to examine whether participation in group exercise and regular walking could mitigate the worsening of depressive symptoms among older survivors.</jats:p></jats:sec><jats:sec><jats:title>Design</jats:title><jats:p>Prospective observational study.</jats:p></jats:sec><jats:sec><jats:title>Setting</jats:title><jats:p>Our baseline survey was conducted in August 2010, ∼7 months prior to the Great East Japan Earthquake and tsunami, among people aged 65 or older residing in Iwanuma City, Japan, which suffered significant damage in the disaster. A 3-year follow-up survey was conducted in 2013.</jats:p></jats:sec><jats:sec><jats:title>Participants</jats:title><jats:p>3567 older survivors responded to the questionnaires predisaster and postdisaster.</jats:p></jats:sec><jats:sec><jats:title>Primary outcome measures</jats:title><jats:p>Change in depressive symptoms was assessed using the 15-item Geriatric Depression Scale (GDS).</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>From predisaster to postdisaster, the mean change in GDS score increased by 0.1 point (95% CI −0.003 to 0.207). During the same interval, the frequency of group exercise participation and daily walking time also increased by 1.9 days/year and 1.3 min/day, respectively. After adjusting for all covariates, including personal experiences of disaster, we found that increases in the frequency of group exercise participation (<jats:italic>B</jats:italic>=−0.139,<jats:italic>β</jats:italic>=−0.049, p=0.003) and daily walking time (<jats:italic>B</jats:italic>=−0.087,<jats:italic>β</jats:italic>=−0.034, p=0.054) were associated with lower GDS scores. Interactions between housing damage and changes in group exercise participation (<jats:italic>B</jats:italic>=0.103,<jats:italic>β</jats:italic>=0.034, p=0.063) and changes in walking habit (<jats:italic>B</jats:italic>=0.095,<jats:italic>β</jats:italic>=0.033, p=0.070) were marginally significant, meaning that the protective effects tended to be attenuated among survivors reporting more extensive housing damage.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>Participation in group exercises or regular walking may mitigate the worsening of depressive symptoms among older survivors who have experienced natural disaster.</jats:p></jats:sec>

    DOI: 10.1136/bmjopen-2016-013706

    researchmap

  • 歯科医院への定期健診はどのような人が受けているのか─受診の健康格差:8020推進財団「一般地域住民を対象とした歯・口腔の健康に関する調査研究」

    潤 相田, 穫博 深井, 美智子 古田, 遊洋 佐藤, 義浩 嶋﨑, 雄一 安藤, 秀夫 宮﨑, 正樹 神原

    口腔衛生学会雑誌   2017年

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.5834/jdh.67.4_270

    researchmap

  • 口腔の健康状態および歯科保健サービスの受給状況と歯科医療費や医療費との関連

    研時 竹内, 遊洋 佐藤, 紫乃 須磨, 美智子 古田, 優花 岡部, 照彦 田中, 健 小坂, 喜久 山下

    口腔衛生学会雑誌   2017年

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.5834/jdh.67.3_160

    researchmap

  • Tooth Loss and Decline in Functional Capacity: A Prospective Cohort Study from the Japan Gerontological Evaluation Study

    Yukihiro Sato, Jun Aida, Katsunori Kondo, Toru Tsuboya, Richard G. Watt, Tatsuo Yamamoto, Shihoko Koyama, Yusuke Matsuyama, Ken Osaka

    Journal of the American Geriatrics Society   2016年11月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec><jats:title>Objectives</jats:title><jats:p>To describe associations between tooth loss and changes in higher‐level functional capacity.</jats:p></jats:sec><jats:sec><jats:title>Design</jats:title><jats:p>Prospective cohort study.</jats:p></jats:sec><jats:sec><jats:title>Setting</jats:title><jats:p>Twenty‐four Japanese municipalities between 2010 and 2013.</jats:p></jats:sec><jats:sec><jats:title>Participants</jats:title><jats:p>Functionally independent community‐dwelling persons aged 65 and older (N = 62,333).</jats:p></jats:sec><jats:sec><jats:title>Measurements</jats:title><jats:p>Self‐reported number of teeth was used as an exposure variable. The outcome was changes in higher‐level functional capacity measured using the Tokyo Metropolitan Institute of Gerontology Index of Competence (<jats:styled-content style="fixed-case">TMIG</jats:styled-content>‐<jats:styled-content style="fixed-case">IC</jats:styled-content>), which consists of three domains: instrumental activities of daily living, intellectual activity, and social roles. The <jats:styled-content style="fixed-case">TMIG</jats:styled-content>‐<jats:styled-content style="fixed-case">IC</jats:styled-content> score ranges from 0 (lowest function) to 13 (highest function). All covariates were chosen from baseline demographic, socioeconomic, health behavior, and health variables based upon evidence from previous studies. Inverse‐probability weighting (<jats:styled-content style="fixed-case">IPW</jats:styled-content>) with propensity score and multiple linear regression, estimating nonstandardized coefficients (β) and 95% confidence intervals (CIs), were used.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>The baseline response rate was 65.2%, and the follow‐up rate was 70.1%. During the follow‐up period, participants’ <jats:styled-content style="fixed-case">TMIG</jats:styled-content>‐<jats:styled-content style="fixed-case">IC</jats:styled-content> score declined by an average of 0.247 points (standard deviation: 1.446). The results showed a significant dose‐response association between tooth loss and decline in higher‐level functional capacity in multiple linear regression models. <jats:styled-content style="fixed-case">IPW</jats:styled-content> models estimated the increment in <jats:styled-content style="fixed-case">TMIG</jats:styled-content>‐<jats:styled-content style="fixed-case">IC</jats:styled-content> score (β<jats:italic> </jats:italic>= 0.170, 95% <jats:styled-content style="fixed-case">CI</jats:styled-content> = 0.114 to 0.227) if edentulous participants gained 20 or more natural teeth.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>Tooth loss is associated with future decline in higher‐level functional capacity. <jats:styled-content style="fixed-case">IPW</jats:styled-content> models suggest that treatment for tooth loss attenuates decline in higher‐level functional capacity.</jats:p></jats:sec>

    DOI: 10.1111/jgs.14324

    researchmap

  • Community social capital and tooth loss in Japanese older people: a longitudinal cohort study

    Shihoko Koyama, Jun Aida, Masashige Saito, Naoki Kondo, Yukihiro Sato, Yusuke Matsuyama, Yukako Tani, Yuri Sasaki, Katsunori Kondo, Toshiyuki Ojima, Tatsuo Yamamoto, Toru Tsuboya, Ken Osaka

    BMJ Open   2016年4月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:sec><jats:title>Objective</jats:title><jats:p>To date, no study has prospectively examined the association between social capital (SC) in the community and oral health. The aim of this longitudinal cohort study was to examine the association between both community-level and individual-level SC and tooth loss in older Japanese people.</jats:p></jats:sec><jats:sec><jats:title>Design</jats:title><jats:p>Prospective cohort study</jats:p></jats:sec><jats:sec><jats:title>Setting</jats:title><jats:p>We utilised data from the Japan Gerontological Evaluation Study (JAGES) performed in 2010 and 2013 and conducted in 525 districts.</jats:p></jats:sec><jats:sec><jats:title>Participants</jats:title><jats:p>The target population was restricted to non-institutionalised people aged 65 years or older. Participants included 51 280 people who responded to two surveys and who had teeth at baseline.</jats:p></jats:sec><jats:sec><jats:title>Primary outcome measure</jats:title><jats:p>The primary outcome measure was loss of remaining teeth, measured by the downward change of any category of remaining teeth, between baseline and follow-up.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>The mean age of the participants was 72.5 years (SD=5.4). During the study period, 8.2% (n=4180) lost one or more of their remaining teeth. Among three community-level SC variables obtained from factor analysis, an indicator of civic participation significantly reduced the risk of tooth loss (OR 0.93; 95% CI 0.88 to 0.99). The individual-level SC variables ‘hobby activity participation’ and ‘sports group participation’ were also associated with a reduced risk of tooth loss (OR 0.88; 95% CI 0.81 to 0.95 and OR 0.90; 95% CI 0.82 to 0.99, respectively).</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>Living in a community with rich SC and individuals with good SC is associated with lower incidence of tooth loss among older Japanese people.</jats:p></jats:sec>

    DOI: 10.1136/bmjopen-2015-010768

    researchmap

  • Do community- and individual-level social relationships contribute to the mental health of disaster survivors?: A multilevel prospective study after the Great East Japan Earthquake

    Yusuke Matsuyama, Jun Aida, Akihiro Hase, Yukihiro Sato, Shihoko Koyama, Toru Tsuboya, Ken Osaka

    Social Science &amp; Medicine   2016年2月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.socscimed.2016.01.008

    researchmap

  • Impact of Loss of Removable Dentures on Oral Health after the Great East Japan Earthquake: A Retrospective Cohort Study

    Yukihiro Sato, Jun Aida, Kenji Takeuchi, Kanade Ito, Shihoko Koyama, Masako Kakizaki, Mari Sato, Ken Osaka, Ichiro Tsuji

    Journal of Prosthodontics   2015年1月

     詳細を見る

    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    <jats:title>Abstract</jats:title><jats:sec><jats:title>Purpose</jats:title><jats:p>The Great East Japan Earthquake in March 2011 destroyed many communities, and as a result many older victims lost their removable dentures. No previous studies have documented the prevalence of denture loss after a natural disaster or examined its negative impact. Therefore, investigation of the consequences of such a disaster on oral health is of major importance from a public health viewpoint.</jats:p></jats:sec><jats:sec><jats:title>Materials and Methods</jats:title><jats:p>Three to five months after the disaster, questionnaire surveys were conducted in two coastal towns, Ogatu and Oshika, located in the area of Ishinomaki city, Miyagi prefecture. Among the survey participants, 715 individuals had used one or more removable dentures before the disaster, and these comprised the population analyzed. The effect of denture loss on oral health‐related quality life (OHRQoL) was examined by a modified Poisson regression approach with adjustment for sex, age, subjective household economic status, dental caries, tooth mobility, psychological distress (K6), access to a dental clinic, physical activity, and town of residence.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>There were 123 (17.2%) participants who had lost their dentures. In comparison with participants who had not lost their dentures, those lacking dentures showed a significantly higher relative risk for eating difficulties (RR = 2.65, 95%CI = 1.90–3.69), speech problems (RR = 4.37, 95%CI = 2.46–7.76), embarrassment upon smiling, laughing, or showing their teeth (RR = 5.32, 95%CI = 2.34–12.1), emotional distress (RR = 2.38, 95%CI = 1.41–4.03), and problems related to social interaction (RR = 6.97, 95%CI = 1.75–27.7).</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>Denture loss appeared to impair eating and speaking ability, thus discouraging communication with others. Public health intervention after major natural disasters should include dental care.</jats:p></jats:sec>

    DOI: 10.1111/jopr.12210

    researchmap

  • 出身大学によって幼児への歯磨剤の使用の推奨は異なるのか : 臨床研修歯科医師を対象とした調査結果

    史穂子 小山, 潤 相田, 晃広 長谷, 祐輔 松山, 遊洋 佐藤, 宏子 三浦, 健 小坂

    口腔衛生学会雑誌   2015年

     詳細を見る

    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.5834/jdh.65.5_417

    researchmap

▼全件表示

書籍等出版物

  • 健康長寿社会に寄与する歯科医療・口腔保健のエビデンス

    相田潤, 松山祐輔, 小山史穂子, 佐藤遊洋, 上野路子, 坪谷透, 小坂健( 担当: 共著 範囲: 8章 口腔保健と社会的決定要因)

    日本歯科医師会雑誌  2015年 

     詳細を見る

講演・口頭発表等

  • 日本の正規雇用労働者における交代制夜間勤務年数と現在歯数および歯周病の関連

    佐藤 遊洋, 吉岡 英治, 西條 泰明

    第83回日本公衆衛生学会総会  2024年10月 

     詳細を見る

    開催年月日: 2024年10月

    記述言語:日本語   会議種別:ポスター発表  

    researchmap

  • エコチル調査から見た、口唇口蓋裂を例とした先天異常における環境疫学の役割とその将来 招待

    佐藤遊洋

    第 35 回日本成長学会学術集会  2024年10月 

     詳細を見る

    開催年月日: 2024年10月

    記述言語:日本語   会議種別:シンポジウム・ワークショップ パネル(指名)  

    researchmap

  • 口唇口蓋裂を有する1歳児の下気道感染症罹患リスク:エコチル調査より

    佐藤遊洋, 吉岡英治, 西條泰明, 宮本敏伸, 東寛, 棚橋祐典, 伊藤善也, 小林澄貴, 湊屋街子, アイツバマイゆふ, 山崎圭子, 伊藤佐智子, 宮下ちひろ, 池田敦子, 岸玲子

    第94回 日本衛生学会学術総会(鹿児島)  2024年3月 

     詳細を見る

    開催年月日: 2024年3月

    記述言語:日本語   会議種別:ポスター発表  

    researchmap

  • 口唇口蓋裂を有した児の睡眠時間に関する研究:エコチル調査より

    佐藤遊洋, 西條泰明, 吉岡英治, 加藤育民, 長屋建, 高橋悟, 伊藤善也, 小林澄貴, アイツバマイゆふ, 山﨑圭子, 伊藤佐智子, 宮下ちひろ, 池田敦子, 岸玲子

    第93回日本衛生学会学術総会(東京)  2023年3月 

     詳細を見る

    開催年月日: 2023年3月

    記述言語:日本語   会議種別:ポスター発表  

    researchmap

  • 口唇口蓋裂の発症に関連するリスク要因の人口寄 与割合:エコチル調査より

    佐藤遊洋, 西條泰明, 吉岡英治, 伊藤善也, 小林澄貴, 湊屋街子, 岸玲子

    第80回日本公衆衛生学会総会(東京)  2021年12月 

     詳細を見る

    開催年月日: 2021年12月

    記述言語:日本語   会議種別:ポスター発表  

    researchmap

  • 東日本大震災による義歯喪失と口腔のQOLの関連

    佐藤遊洋, 相田潤, 竹内研時, 若栗真太郎, 服部佳功, 小関健由, 小坂健, 佐々木啓一, 辻一郎

    第48回宮城県公衆衛生学会(宮城)  2012年7月 

     詳細を見る

    記述言語:日本語   会議種別:口頭発表(一般)  

    researchmap

  • Dental Status and IADL Disability; the JAGES Panel Cohort Study. 国際会議

    Yukihiro Sato, Jun Aida, Katsunori Kondo, Toru Tsuboya, Ken Osaka

    The 2015 International Association for Dental Research (Boston)  2015年3月 

     詳細を見る

    記述言語:英語   会議種別:口頭発表(一般)  

    researchmap

  • 震災による義歯喪失の実態とその影響について

    佐藤遊洋, 相田潤, 竹内研時, 若栗真太郎, 服部佳功, 小関健由, 小坂健, 佐々木啓一, 辻一郎

    第61回日本口腔衛生学会総会(神奈川)  2012年5月 

     詳細を見る

    記述言語:日本語   会議種別:ポスター発表  

    researchmap

  • 普遍化信頼および特定化信頼と主観的健康感の関連の研究: JAGESプロジェクト

    佐藤遊洋, 相田潤, 白井こころ, 坪谷透, 小山史穂子, 松山祐輔, 小坂健, 近藤克則

    第74回日本公衆衛生学会総会(長崎)  2015年10月 

     詳細を見る

    記述言語:日本語   会議種別:ポスター発表  

    researchmap

  • Occupation and tooth loss in Japan: A cross-sectional study 国際会議

    Yukihiro Sato, Jun Aida, Toru Tsuboya, Yusuke Matsuyama, Shihoko Koyama, Ken Osaka

    The 12th International Conference of Asian Academy of Preventive Dentistry (Tokyo)  2016年5月 

     詳細を見る

    記述言語:英語   会議種別:口頭発表(一般)  

    researchmap

  • Chewing ability and cardiovascular disease incidence: a three-year cohort study. 国際会議

    Yukihiro Sato, Jun Aida, Toru Tsuboya, Tatsuo Yamamoto, Kondo Kondo, Yusuke Matsuyama, Shihoko Koyama, Ken Osaka

    The 2016 International Association for Dental Research (Seoul)  2016年6月 

     詳細を見る

    記述言語:英語   会議種別:ポスター発表  

    researchmap

  • 職業性ストレスと歯牙喪失の関連:J-SHINE からの横断研究

    佐藤遊洋, 坪谷 透, 相田 潤, 小坂 健

    第67回日本口腔衛生学会(北海道)  2018年5月 

     詳細を見る

    記述言語:日本語   会議種別:ポスター発表  

    researchmap

  • 大学時代の奨学金利用と歯の喪失の関連:インターネット調査を利用した横断研究

    佐藤遊洋, 西條泰明, 吉岡英治, 小坂健

    第77回日本公衆衛生学会総会(福島)  2018年10月 

     詳細を見る

    記述言語:日本語   会議種別:ポスター発表  

    researchmap

▼全件表示

受賞

  • 令和6年度旭川医科大学学術研究表彰 学術奨励賞

    2024年   旭川医科大学   口唇口蓋裂の発症リスク要因と口唇口蓋裂が児の健康状態などに与える影響を明らかにする研究

    佐藤遊洋

     詳細を見る

  • 優秀学位研究賞

    2018年3月   東北大学歯学研究科  

    佐藤遊洋

     詳細を見る

共同研究・競争的資金等の研究課題

  • 日本の全労働者の約20%が行っている夜間勤務と歯科疾患の関連を明らかにする研究

    研究課題/領域番号:22K17264  2022年4月 - 2024年3月

    日本学術振興会  科学研究費助成事業 若手研究  若手研究

    佐藤 遊洋

      詳細を見る

    配分額:4,550,000円 ( 直接経費:3,500,000円 、 間接経費:1,050,000円 )

    researchmap

  • 2023年度歯科衛生学研究者研究助成 (B.口腔衛生学部門)

    2022年4月 - 2023年3月

    公益財団法人富徳会 

      詳細を見る

  • 職場環境が歯科疾患に与える影響と歯科疾患による労働遂行能力低下を明らかにする研究

    2019年4月 - 2022年3月

    日本学術振興会  科学研究費 若手研究 

    佐藤遊洋

      詳細を見る

    担当区分:研究代表者  資金種別:競争的資金

    researchmap

  • 職場環境が口腔の健康に与える影響とその緩衝要因を明らかにする研究

    2018年8月 - 2019年3月

    日本学術振興会  科学研究費補助金 研究活動スタート支援 

    佐藤遊洋

      詳細を見る

    担当区分:研究代表者  資金種別:競争的資金

    researchmap

  • 仕事のストレスによって、歯を失うリスクは高まるのか?職業性ストレスと歯の喪失の関連を明らかにした研究

    2018年7月

    エディテージ・エッジ  2018年度エディテージ研究費 英文校正グラント 

    佐藤遊洋

      詳細を見る

    担当区分:研究代表者  資金種別:競争的資金

    researchmap

  • 東日本大震災前のソーシャルキャピタルと震災後の要介護状態発生の関連のコホート研究

    2015年11月 - 2016年10月

    医療科学研究所  第25回(2015年度)研究助成 

    佐藤遊洋

      詳細を見る

    担当区分:研究代表者  資金種別:競争的資金

    researchmap

  • 大規模データを用いた信頼と健康の関連の社会疫学研究

    2015年6月 - 2018年3月

    東北大学学際高等研究教育院  博士研究教育院生 

    佐藤遊洋

      詳細を見る

    担当区分:研究代表者  資金種別:競争的資金

    researchmap

  • Chewing ability and cardiovascular disease incidence: a three-year cohort study.

    2014年5月 - 2014年10月

    東北大学大学院歯学研究科  平成28年度歯学研究者育成プログラム春季 

    佐藤遊洋

      詳細を見る

    担当区分:研究代表者  資金種別:競争的資金

    researchmap

  • 高齢者の日常生活動作(IADL)に対する口腔の健康の影響の前向きコホート研究

    2014年4月 - 2015年3月

    8020財団  公募研究課題 

    佐藤遊洋

      詳細を見る

    担当区分:研究代表者  資金種別:競争的資金

    researchmap

▼全件表示

その他

  • 博士課程研究指導(九里優輝、旭川医科大学医学系研究科)

    2024年3月

     詳細を見る

  • 博士課程研究指導(中西研太郎、旭川医科大学医学系研究科)

    2023年9月

     詳細を見る

担当経験のある科目(授業)

  • 衛生統計学(衛生士)

    2023年4月 - 現在 機関名:旭川歯科学院専門学校

     詳細を見る

  • 博士課程 研究者コース 社会・環境医学領域

    2023年4月 - 現在 機関名:旭川医科大学大学院医学系研究科

     詳細を見る

  • 保健医療論(看護)

    2022年4月 - 現在 機関名:旭川市医師会看護専門学校

     詳細を見る

  • 公衆衛生(看護科)

    2019年4月 - 現在 機関名:北都保健福祉専門学校

     詳細を見る

  • 衛生・公衆衛生学(衛生士)

    2019年4月 - 2024年3月 機関名:旭川歯科学院専門学校

     詳細を見る

  • 衛生・公衆衛生実習(医学科)

    2018年4月 - 現在 機関名:旭川医科大学

     詳細を見る

  • 臨床疫学(医学科)

    2018年4月 - 現在 機関名:旭川医科大学

     詳細を見る

  • 衛生・公衆衛生(医学科)

    2018年4月 - 現在 機関名:旭川医科大学

     詳細を見る

  • 疫学(看護科)

    2018年4月 - 現在 機関名:旭川医科大学

     詳細を見る

  • 保健統計(看護科)

    2018年4月 - 現在 機関名:旭川医科大学

     詳細を見る

  • 疫学(看護科)

    2018年4月 - 2023年3月 機関名:日本赤十字北海道看護大学

     詳細を見る

  • 保健医療論(看護科)

    2018年4月 - 2021年3月 機関名:北都保健福祉専門学校

     詳細を見る

▼全件表示