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Strenuous working conditions and birthweight, Norway 1989
E Wergeland1, K Strand, P E Børdahl
1Department of Preventive Medicine, University of Oslo, Norway.
Acta Obstetricia Et Gynecologica Scandinavica
|April 16, 1998
Summary
Strenuous work during pregnancy increases the risk of low birthweight (LBW) in first-time mothers, especially non-smokers. Lack of control over work pace was the most significant risk factor identified.
Area of Science:
- Occupational health
- Maternal and child health
- Epidemiology
Background:
- Pregnancy health is influenced by various occupational factors.
- Understanding the impact of strenuous work on birth outcomes is crucial for maternal and infant well-being.
Purpose of the Study:
- To investigate the association between strenuous working conditions during pregnancy and reduced birthweight.
Main Methods:
- A cross-sectional, population-based study was conducted in Norway.
- Data were collected retrospectively via questionnaires from 5388 women with singleton births.
- Low birthweight (LBW) prevalence and mean birthweight were the primary outcome measures.
Main Results:
- Strenuous working conditions were linked to an increased risk of LBW, particularly in nulliparous (first-time) mothers, and especially non-smoking nulliparous mothers.
- Prevalence of LBW rose from 0.8% in the least exposed group to 8.3% in the most exposed group (p<0.05).
- Lack of influence on work pace emerged as the strongest risk factor for LBW.
Conclusions:
- Strenuous work during pregnancy poses a significant risk for LBW in nulliparous women, with non-smokers being particularly vulnerable.
- Job modification, similar to smoking cessation, may offer preventive benefits for birth outcomes.