Does passive smoking in early pregnancy increase the risk of small-for- gestational-age infants?

E. Dejin-Karlsson, B.S. Hanson, P.-O. Östergren, N.-O. Sjöberg and K. Marsal

American Journal of Public Health, 1998, vol. 88, issue 10, 1523-1527

Abstract: Objectives. This study tested the hypothesis that women who deliver small-for-gestational-age infants are more often exposed to passive smoking at home or at work. Methods. Among a 1-year-cohort of nulliparous women in the city of Malmo, Sweden, 872 (87.7%) women completed a questionnaire during their first prenatal visit. The study was carried out among women whose pregnancies resulted in a singleton live birth (n = 826); 6.7% of infants were classified as small for their gestational age. Results. Passive smoking in early pregnancy was shown to double a woman's risk of delivering a small- for-gestational-age infant, independent of potential confounding factors such as age, height, weight, nationality, educational level, and the mother's own active smoking (odds ratio [OR] = 2.7). A stratified analysis indicated interactional effects of maternal smoking and passive smoking on relative small for-gestational-age risk. Conclusions. Based on an attributable risk estimate, a considerable reduction in the incidence of small-for-gestational- age birth could be reached if pregnant women were not exposed to passive smoking.

Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:aph:ajpbhl:1998:88:10:1523-1527_6

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