Long working hours and pregnancy complications: Women physicians survey in japan

Masumi Takeuchi, Mahbubur Rahman, Aya Ishiguro, Kyoko Nomura

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Background: Previous studies have investigated the impact of occupational risk factors on health outcomes among physicians. However, few studies have investigated the effects on pregnancy outcomes among physicians. In this study, we examined the association between working hours during pregnancy and pregnancy complications among physicians.Methods: A cross-sectional study was based on a survey conducted in 2009-2011 of 1,684 alumnae (mean age, 44 ± 8 years) who had graduated from 13 private medical schools in Japan. Data on threatened abortion (TA), preterm birth (PTB), and the number of working hours during the first trimester of pregnancy were obtained via retrospective assessments.Results: Of the 939 physicians with a first pregnancy, 15% experienced TA and 12% experienced PTB. Women who experienced TA (mean weekly working hours: 62 h vs. 50 h, P < .0001) or PTB (62 h vs. 50 h, P < .0001) had longer weekly working hours during the first trimester than did those without pregnancy complications. Compared with women who worked 40 hours or less per week, women who worked 71 hours or more per week had a three-fold higher risk of experiencing TA (95% confidence interval (CI): 1.7-6.0) even after adjusting for medical specialty, maternal age, and current household income. The risk of experiencing PTB was 2.5 times higher (95% CI:1.2-5.2) in women who worked 51-70 hours and 4.2 times higher (95% CI: 1.9-9.2) in women who worked 71 hours or more even after adjusting for specialty, maternal age, and current household income. The trend in the P statistic reflecting the effect of the quartile of hours worked per week (40 hours, 41-50 hours, 51-70 hours, ≥71 hours) on TA or PTB was 0.0001 in the multivariate logistic regression models.Conclusion: These results suggest that working long hours during the first trimester of pregnancy is associated with TA and PTB.

    Original languageEnglish (US)
    Article number245
    JournalBMC Pregnancy and Childbirth
    Volume14
    Issue number1
    DOIs
    StatePublished - Jul 23 2014

    Fingerprint

    Threatened Abortion
    Women Physicians
    Pregnancy Complications
    Premature Birth
    Japan
    First Pregnancy Trimester
    Physicians
    Maternal Age
    Confidence Intervals
    Logistic Models
    Pregnancy
    Pregnancy Outcome
    Medical Schools
    Surveys and Questionnaires
    Cross-Sectional Studies
    Medicine
    Health

    Keywords

    • Pregnancy complication
    • Preterm birth
    • Threatened abortion
    • Women physicians
    • Working hours

    ASJC Scopus subject areas

    • Obstetrics and Gynecology

    Cite this

    Long working hours and pregnancy complications : Women physicians survey in japan. / Takeuchi, Masumi; Rahman, Mahbubur; Ishiguro, Aya; Nomura, Kyoko.

    In: BMC Pregnancy and Childbirth, Vol. 14, No. 1, 245, 23.07.2014.

    Research output: Contribution to journalArticle

    Takeuchi, Masumi ; Rahman, Mahbubur ; Ishiguro, Aya ; Nomura, Kyoko. / Long working hours and pregnancy complications : Women physicians survey in japan. In: BMC Pregnancy and Childbirth. 2014 ; Vol. 14, No. 1.
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    AU - Takeuchi, Masumi

    AU - Rahman, Mahbubur

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    AB - Background: Previous studies have investigated the impact of occupational risk factors on health outcomes among physicians. However, few studies have investigated the effects on pregnancy outcomes among physicians. In this study, we examined the association between working hours during pregnancy and pregnancy complications among physicians.Methods: A cross-sectional study was based on a survey conducted in 2009-2011 of 1,684 alumnae (mean age, 44 ± 8 years) who had graduated from 13 private medical schools in Japan. Data on threatened abortion (TA), preterm birth (PTB), and the number of working hours during the first trimester of pregnancy were obtained via retrospective assessments.Results: Of the 939 physicians with a first pregnancy, 15% experienced TA and 12% experienced PTB. Women who experienced TA (mean weekly working hours: 62 h vs. 50 h, P < .0001) or PTB (62 h vs. 50 h, P < .0001) had longer weekly working hours during the first trimester than did those without pregnancy complications. Compared with women who worked 40 hours or less per week, women who worked 71 hours or more per week had a three-fold higher risk of experiencing TA (95% confidence interval (CI): 1.7-6.0) even after adjusting for medical specialty, maternal age, and current household income. The risk of experiencing PTB was 2.5 times higher (95% CI:1.2-5.2) in women who worked 51-70 hours and 4.2 times higher (95% CI: 1.9-9.2) in women who worked 71 hours or more even after adjusting for specialty, maternal age, and current household income. The trend in the P statistic reflecting the effect of the quartile of hours worked per week (40 hours, 41-50 hours, 51-70 hours, ≥71 hours) on TA or PTB was 0.0001 in the multivariate logistic regression models.Conclusion: These results suggest that working long hours during the first trimester of pregnancy is associated with TA and PTB.

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    KW - Threatened abortion

    KW - Women physicians

    KW - Working hours

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