First-Trimester Working Conditions and Birthweight

A Prospective Cohort Study

Bibliographic Data

ID11036298
AuthorsTanja Vrijkotte (0000-0003-3641-4048, GGD Amsterdam), Tanja G M Vrijkotte (At the time of the study, Tanja G. M. Vrijkotte, Manon van Eijsden, and Gouke J. Bonsel were with the Department of Social Medicine, Academic Medical Centre Amsterdam, Amsterdam, Netherlands. Marcel F. van der Wal and M. van Eijsden were with the Department of Epidemiology, Documentation and Health Promotion, Municipal Health Service Amsterdam, Amsterdam.), Marcel F van der Wal (0000-0001-5870-2572, At the time of the study, Tanja G. M. Vrijkotte, Manon van Eijsden, and Gouke J. Bonsel were with the Department of Social Medicine, Academic Medical Centre Amsterdam, Amsterdam, Netherlands. Marcel F. van der Wal and M. van Eijsden were with the Department of Epidemiology, Documentation and Health Promotion, Municipal Health Service Amsterdam, Amsterdam.), Manon van Eijsden (At the time of the study, Tanja G. M. Vrijkotte, Manon van Eijsden, and Gouke J. Bonsel were with the Department of Social Medicine, Academic Medical Centre Amsterdam, Amsterdam, Netherlands. Marcel F. van der Wal and M. van Eijsden were with the Department of Epidemiology, Documentation and Health Promotion, Municipal Health Service Amsterdam, Amsterdam.), Gouke J Bonsel (0000-0002-8364-1086, At the time of the study, Tanja G. M. Vrijkotte, Manon van Eijsden, and Gouke J. Bonsel were with the Department of Social Medicine, Academic Medical Centre Amsterdam, Amsterdam, Netherlands. Marcel F. van der Wal and M. van Eijsden were with the Department of Epidemiology, Documentation and Health Promotion, Municipal Health Service Amsterdam, Amsterdam.)
Year2009
Volume99
Issue8
Pages1409-1416
Publication date2009-08-01
Peer ReviewedYes
Open AccessNo
TypeARTICLE
VenueAmerican Journal of Public Health (JOURNAL)
Journal identifiersISSN: 0090-0036 • E-ISSN: 1541-0048
PublisherAmerican Public Health Association (PUBLISHER • US)
DOI10.2105/ajph.2008.138412
PMID19542045
PMCIDPMC2707468
OpenAlexW2114445909
LanguageEN
Citations received3
References cited41

Objectives. We investigated the relationship between women's first-trimester working conditions and infant birthweight. Methods. Pregnant 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. Results. After 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). Conclusions. High 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

Birth weight · Confidence interval · Gestational age · Job strain · Obstetrics · Odds ratio · Pregnancy · Prospective cohort study · Small for gestational age · Birth, Development, and Health · Demography · Gestational Diabetes Research and Management · Internal Medicine · Maternal and Perinatal Health Interventions · Medicine · Pediatrics

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