Environmental tobacco smoke and breastfeeding duration

Bernardo Lessa Horta, Cesar Gomes Victora, Ana Maria Menezes, Fernando C. Barros

Research output: Contribution to journalArticle

Abstract

The effect of smoking on breastfeeding duration was investigated in a population-based birth cohort study of 1,098 Brazilian infants. There were few losses to follow-up (3.2%) in the first 6 months. Maternal smoking was strongly associated with breastfeeding duration, even after adjustment for confounding. Compared with nonsmokers, mothers smoking 20 or more cigarettes daily presented an odds ratio of 1.94 for breastfeeding for less than 6 months. Environmental tobacco smoke was also an independent risk factor. After adjustment for maternal smoking and other confounders, households where more than 10 cigarettes were smoked daily by persons other than the mother presented an odds ratio of 1.48 compared with those without smokers. These results remained unchanged after stratification for maternal smoking. This is the first report of a possible effect of environmental tobacco smoke on breastfeeding duration.

Original languageEnglish (US)
Pages (from-to)128-133
Number of pages6
JournalAmerican Journal of Epidemiology
Volume146
Issue number2
StatePublished - Jul 15 1997
Externally publishedYes

Fingerprint

Breast Feeding
Smoke
Tobacco
Smoking
Mothers
Tobacco Products
Odds Ratio
Cohort Studies
Parturition
Population

Keywords

  • Breast feeding
  • Epidemiologic factors
  • Smoking
  • Tobacco smoke pollution

ASJC Scopus subject areas

  • Epidemiology

Cite this

Horta, B. L., Victora, C. G., Menezes, A. M., & Barros, F. C. (1997). Environmental tobacco smoke and breastfeeding duration. American Journal of Epidemiology, 146(2), 128-133.

Environmental tobacco smoke and breastfeeding duration. / Horta, Bernardo Lessa; Victora, Cesar Gomes; Menezes, Ana Maria; Barros, Fernando C.

In: American Journal of Epidemiology, Vol. 146, No. 2, 15.07.1997, p. 128-133.

Research output: Contribution to journalArticle

Horta, BL, Victora, CG, Menezes, AM & Barros, FC 1997, 'Environmental tobacco smoke and breastfeeding duration', American Journal of Epidemiology, vol. 146, no. 2, pp. 128-133.
Horta BL, Victora CG, Menezes AM, Barros FC. Environmental tobacco smoke and breastfeeding duration. American Journal of Epidemiology. 1997 Jul 15;146(2):128-133.
Horta, Bernardo Lessa ; Victora, Cesar Gomes ; Menezes, Ana Maria ; Barros, Fernando C. / Environmental tobacco smoke and breastfeeding duration. In: American Journal of Epidemiology. 1997 ; Vol. 146, No. 2. pp. 128-133.
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