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Am J Public Health. 2001 Feb;91(2):304-7.

Maternal smoking and the risk of early weaning: a meta-analysis.

Author information

1
Department of Social Medicine, School of Medicine and Psychology, Universidade Católica de Pelotas, Pelotas, Brazil. blhorta@uol.com

Abstract

OBJECTIVES:

This study reviewed evidence on the effect of maternal smoking on early weaning.

METHODS:

The following databases and journals were searched: Medline, Scientific Citation Index, Pediatrics, Journal of Pediatrics, New England Journal of Medicine, and Lancet. Analysis was restricted to studies in which infants who had never been breastfed were excluded or the prevalence of breastfeeding initiation was more than 90%.

RESULTS:

In smoking vs nonsmoking mothers, the random effects odds ratio for weaning before 3 months was 1.93 (95% confidence interval [CI] = 1.55, 2.40). An adjusted odds ratio of 1.50 (95% CI = 1.34, 1.68) was shown in studies that had lost-to-follow-up rates below 15% and included adequate adjustment for confounding.

CONCLUSIONS:

Maternal smoking increases the risk of early weaning.

PMID:
11211645
PMCID:
PMC1446540
DOI:
10.2105/ajph.91.2.304
[Indexed for MEDLINE]
Free PMC Article

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