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Type: Journal article
Title: Life course association of maternal smoking during pregnancy and offspring's height: data from the 1993 Pelotas (Brazil) birth cohort
Author: Martínez-Mesa, J.
Menezes, A.
González, D.
Horta, B.
Matijasevich, A.
Gigante, D.
Hallal, P.
Citation: Journal of Adolescent Health, 2012; 51(Suppl. 6):S53-S57
Publisher: Elsevier
Issue Date: 2012
ISSN: 1054-139X
Statement of
Jeovany Martínez-Mesa, Ana M.B. Menezes, David A. González, Bernardo L. Horta, Alicia Matijasevich, Denise P. Gigante, Pedro C. Hallal
Abstract: PURPOSE: To evaluate the effect of (1) maternal smoking during pregnancy; and (2) partner smoking on offspring's height in infancy, childhood, and adolescence. METHODS: All hospital live births from 1993 (5,249) were identified, and these infants were followed up at several ages. Height for age, expressed as z-scores using the World Health Organization growth curves, was measured at all follow-up visits. Maternal smoking during pregnancy was collected retrospectively at birth and analyzed as number of cigarettes/day smoked categorized in four categories (never smoked, <10, 10-19, and ≥ 20 cigarettes/day). Partner smoking was analyzed as a dichotomous variable (No/Yes). Unadjusted and adjusted analyses were performed by use of linear regression. RESULTS: The prevalence of self-reported maternal smoking during pregnancy was 33.5%. In the crude analysis, the number of cigarettes/day smoked by the mother during pregnancy negatively affected offspring's height in infancy, childhood, and adolescence. After adjustment for confounders and mediators, this association remained statistically significant, although the magnitude of the regression coefficients was reduced. Paternal smoking was not associated with offspring's height in the adjusted analyses. CONCLUSIONS: In addition to the well-known harmful effects of smoking, maternal smoking during pregnancy negatively affects offspring's height. Public health policies aimed at continuing to reduce the prevalence of maternal smoking during pregnancy must be encouraged.
Keywords: Smoking; Height by age; Body height; Growth; Child; Adolescent; Cohort studies
Description: Health from birth to adolescence: findings from the 1993 Pelotas, Brazil, Birth Cohort Study
Rights: © 2012 Society for Adolescent Health and Medicine. Open access under CC BY license.
DOI: 10.1016/j.jadohealth.2012.08.014
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