ArticleAmerican journal of public health2009
First-trimester working conditions and birthweight: a prospective cohort study.
Article in American journal of public health, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 3 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
25 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- The effects of prenatal psychosocial work stress on adverse pregnancy outcomes: A comprehensive systematic review and meta-analysis.Scandinavian journal of work, environment & health · 2025Pooled it
- Effects of Maternal Exercise During Pregnancy on Perinatal Growth and Childhood Obesity Outcomes: A Meta-analysis and Meta-regression.Sports medicine (Auckland, N.Z.) · 2021Pooled it
- Work activities and risk of prematurity, low birth weight and pre-eclampsia: an updated review with meta-analysis.Occupational and environmental medicine · 2013Pooled it
- Leiomyomata, neonatal anthropometry, and pregnancy outcomes in singleton pregnancies.Annals of epidemiology · 2023Trial
- Multiple maternal occupational exposures during pregnancy and newborn size at birth: analysis of the ELFE cohort, a French longitudinal study of children.Scandinavian journal of work, environment & health · 2026Article
- Psychosocial working conditions during pregnancy and adverse pregnancy outcomes: a Danish nationwide register-based cohort study.Occupational and environmental medicine · 2025Article
- Development of a quantitative job exposure matrix for standing, walking, and forward bending among pregnant workers - The PRECISE JEM.Scandinavian journal of work, environment & health · 2025Article
- Occupational Physical Activity Among Pregnant Employees in the Danish Workforce: The PRECISE Occupational Cohort Profile.Clinical epidemiology · 2025Article
- Impact of sex, race, and social determinants of health on neonatal outcomes.Frontiers in pediatrics · 2024Review
- Thrombocytopenia and insufficient thrombopoietin production in human small-for-gestational-age infants.Pediatric research · 2023Article
- Working conditions in low risk nulliparous women in The Netherlands: are legislation and guidelines a guarantee for a healthy working environment? A cohort study.International archives of occupational and environmental health · 2022Article
- Evaluation of a blended care programme for caregivers and working pregnant women to prevent adverse pregnancy outcomes: an intervention study.Occupational and environmental medicine · 2021Article
- First trimester employment, working conditions and preterm birth: a prospective population-based cohort study.Occupational and environmental medicine · 2021Article
- Effects of long working hours and shift work during pregnancy on obstetric and perinatal outcomes: A large prospective cohort study-Japan Environment and Children's Study.Birth (Berkeley, Calif.) · 2020Article
- Usability and Usefulness of a Mobile Health App for Pregnancy-Related Work Advice: Mixed-Methods Approach.JMIR mHealth and uHealth · 2019Article
- Lack of partner impacts newborn health through maternal depression: A pilot study of low-income immigrant Latina women.Midwifery · 2018Article
- Article
- Barriers and Facilitators for the Use of a Medical Mobile App to Prevent Work-Related Risks in Pregnancy: A Qualitative Analysis.JMIR research protocols · 2017Article
- Data linkage between the National Birth Defects Prevention Study and the Occupational Information Network (O*NET) to assess workplace physical activity, sedentary behaviors, and emotional stressors during pregnancy.American journal of industrial medicine · 2016Article
- Maternal and Perinatal Outcomes of Exercise in Pregnant Women with Chronic Hypertension and/or Previous Preeclampsia: A Randomized Controlled Trial.ISRN obstetrics and gynecology · 2013Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesWe investigated the relationship between women's first-trimester working conditions and infant birthweight.
methodsPregnant women (N = 8266) participating in the Amsterdam Born Children and Their Development study completed a questionnaire gathering information on employment and working conditions. After exclusions, 7135 women remained in our analyses. Low birthweight and delivery of a small-for-gestational-age (SGA) infant were the main outcome measures.
resultsAfter adjustment, a workweek of 32 hours or more (mean birthweight decrease of 43 g) and high job strain (mean birthweight decrease of 72 g) were significantly associated with birthweight. Only high job strain increased the risk of delivering an SGA infant (odds ratio [OR] = 1.5; 95% confidence interval [CI] = 1.1, 2.2). After adjustment, the combination of high job strain and a long workweek resulted in the largest birthweight reduction (150 g) and the highest risk of delivering an SGA infant (OR = 2.0; 95% CI = 1.2, 3.2).
conclusionsHigh levels of job strain during early pregnancy are associated with reduced birthweight and an increased risk of delivering an SGA infant, particularly if mothers work 32 or more hours per week.
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