Work and pregnancy

Marian C. Marbury, Shai Linn, Richard R. Monson, David H. Wegman, Stephen C. Schoenbaum, Phillip G. Stubblefield, Kenneth J. Ryan

Research output: Contribution to journalArticlepeer-review


Pregnancy outcomes of 7, 155 women who worked between one and nine months of pregnancy were compared with outcomes of 4, 018 women who were not employed. There were no differences in rates of prematurity, Apgar score, birthweight, perinatal death rate, or malformation prevalence. Working women were divided into those who left employment during the first eight months and those who worked all nine months. The latter had a lower rate of adverse outcome than the other working group and the nonworking group. This indicates that working to term in the absence of contraindications does not impose an added risk on mother or infant. After control of confounding by parity and other relevant factors, an increased risk of prolonged gestational age was seen among primiparous working women. There was an increased risk of fetal distress among those women leaving work prior to nine months who were having their third or subsequent child. A small decrease in birth weight was seen among women who left work prior to term but not among those who worked all nine months. Overall the results are reassuring that working during pregnancy is not in itself a risk factor for adverse outcome.

Original languageEnglish
Pages (from-to)415-421
Number of pages7
JournalJournal of Occupational Medicine
Issue number6
StatePublished - Jun 1984
Externally publishedYes

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health


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