title: [Risks associated with the weaning process in children born in a university hospital: a prospective cohort in the first year of life, São Paulo, 1998-1999].
abstract: This study describes breastfeeding practices with children born in a university hospital in the city of S o Paulo, Brazil, and identifies factors associated with duration of breastfeeding and exclusive breastfeeding. A cohort of 506 children was identified; of these, it was possible to analyze information on feeding practices for 450 infants at least until the second month of life. Daily information on infant feeding was recorded by mothers in a food frequency questionnaire. Survival analysis techniques (Kaplan-Meier and Cox) were used. Median duration of breastfeeding and exclusive breastfeeding were 205 and 23 days, respectively. The principal factors related to exclusive breastfeeding were mother's age (hr young/old = 1.22; 95% CI = 1.006-1.486) and mother's schooling (hr primary/university = 2.13; 95% CI = 1.381-3.307 and hr secondary/university = 1.78; 95% CI = 1.145-2.792), which could be related to knowledge concerning the benefits of exclusive breastfeeding.
authors.affiliation: Departamento de Nutrição, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, SP, 01246-904, Brasil. mibueno@usp.br
authors.forename: Milena Baptista
authors.initials: MB
authors.lastname: Bueno
authors.forename: José Maria Pacheco
authors.initials: JM
authors.lastname: de Souza
authors.forename: Sonia Buongermino
authors.initials: SB
authors.lastname: de Souza
authors.forename: Suzana Maria Rebelo Sampaio
authors.initials: SM
authors.lastname: da Paz
authors.forename: Suely Godoy Agostinho
authors.initials: SG
authors.lastname: Gimeno
authors.forename: Arnaldo Augusto Franco
authors.initials: AA
authors.lastname: de Siqueira
mesh_terms: D001938:Brazil; D001942:Breast Feeding / Q000706:statistics & numerical data*; D015331:Cohort Studies; D004522:Educational Status; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D008425:Maternal Behavior; D011446:Prospective Studies; D012959:Socioeconomic Factors; D013997:Time Factors; D014886:Weaning