Nutrição materna e duração da amamentação em uma coorte de nascimento de Pelotas, RS

• Autor(a) principal: Gigante, Denise Petrucci
• Data de Publicação: 2000
• Outros Autores: Victora, Cesar G, Barros, Fernando C
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista de Saúde Pública
• Texto Completo: https://www.revistas.usp.br/rsp/article/view/25015
• topic: Aleitamento materno^i1^sestatísticase dados numéri; Nutrição da mãe; Estado nutricional; Fatores socioeconômicos; Fatores etários; Peso corporal; Mães; Breast feeding^i2^sstatistics and numerical d; Mother nutrition; Nutrional status; Socioeconomic factors; Age factors; Body weight; Mothers

OBJECTIVE: The effects of maternal nutritional status on the duration of breastfeeding are inconsistent in the literature. A population-based cohort study was set to investigate this relationship. METHODS: Nine hundred and seventy seven mothers giving birth in 1993 (20% of that year's births) were studied. Studied maternal characteristics included nutritional status, social, economic, and demographic variables. The effects of these variables on the prevalence of breastfeeding at six months were analyzed through logistic regression. Cox regression was applied to analyze the effects on the duration of breastfeeding. RESULTS: Mulltivariate logistic regression analysis showed a higher prevalence of breastfeeding among women with a pre-pregnancy weight of 49 kg or more (odds ratio = 1.31; CI95% 1.04 -- 1.64). The association with maternal height was not significant (p=0.06). Cox regression also showed a non-significant protective effect of having a higher pre-pregnancy weight (hazard ratio = 0.91; CI95% 0.82 -- 1.01). The duration of breastfeeding duration was not associated with maternal height. Weight gain during pregnancy was not associated with breastfeeding in either analyses. Other variables associated with the duration of breastfeeding in both analyses were maternal age, parity, smoking, and gestational age. Family income was associated with the prevalence of breastfeeding at six months, and birthweight was associated with the duration of breastfeeding. CONCLUSIONS: Pre-pregnancy nutritional status is a stronger predictor of breastfeeding than weight gain during pregnancy.