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Low birthweight, preterm births and intrauterine growth retardation in relation to maternal smoking

Horta, Bernard Lessa, Victora, Cesar Gomes, Menezes, Ana Maria, Halpern, Ricardo, Barros, Fernando C.·1997·Paediatric and Perinatal Epidemiology

Abstract

The association between the intensity and duration of cigarette smoking during pregnancy and the frequency of low birthweight, preterm births and intrauterine growth retardation was investigated in a historical cohort. All 5166 livebirths occurring in the city of Pelotas, Brazil, during 1993 were identified and mothers interviewed soon after delivery. Children whose mothers smoked during pregnancy had a birthweight 142 g lower than those of non‐smoking mothers. The odds ratio for low birthweight among children of smokers was 1.59 [95% CI 1.30–1.95]. There was no association between smoking and preterm delivery assessed by the Dubowitz score. In relation to intrauterine growth retardation, smoking was associated with an odds ratio of 2.07 [95% CI 1.69–2.53]. There was a direct dose–response association between the number of cigarettes smoked and the risk of growth retardation. Women whose partner smoked were also at higher risk of having a child with growth retardation. All the above results were adjusted for confounding factors. The effect of maternal smoking on low birthweight seems to be attributable to intrauterine growth retardation rather than preterm delivery.

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Metadata

Authors
Horta, B. L., Victora, C. G., Menezes, A. M., Halpern, R., & Barros, F. C.
Venue
Paediatric and Perinatal Epidemiology
Publisher
Wiley
Published
1997-04
Volume
11
Issue
2
Pages
140-151
ISSN
  • 0269-5022 (ISSN-L)
  • 1365-3016
OpenAlex
W2065515254
Cited by
347
References
0
FWCI
6.69
Type
journal article
Language
en
Open access
closed

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Horta, B. L., Victora, C. G., Menezes, A. M., Halpern, R., & Barros, F. C. (1997). Low birthweight, preterm births and intrauterine growth retardation in relation to maternal smoking. Paediatric and Perinatal Epidemiology. https://doi.org/10.1046/j.1365-3016.1997.d01-17.x

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