title: [Bed-sharing in the first semester of life: prevalence and associated factors].
abstract: The aim of this study was to verify the prevalence of bed-sharing and factors associated with this sleeping environment in an urban population in Southern Brazil. This was a cross-sectional nested cohort study with 233 mother-infant pairs selected at the maternity ward of the University Hospital in Porto Alegre. When the infant was 3 and 6 months old, home visits were performed to collect data on bed-sharing and associated variables. The main outcome was the place shared by the mother and infant for sleeping. Variables with p < 0.2 were included in a Poisson regression model. At 3 and 6 months, 31.2% and 28.5% of infants slept with their mothers at night. At 3 months, prevalence was higher for single mothers (PR: 1.56; CI: 1.01-2.39) and mothers sharing the home with the infant's maternal grandmother (PR: 1.70; CI: 1.09-2.65). Prevalence of bed-sharing at 3 months was high and associated with single mothers and sharing the home with the infant's maternal grandmother.
authors.affiliation: Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Rua Liberdade 433, Porto Alegre, Brazil. robertoissler@terra.com.br
authors.forename: Roberto Mario Silveira
authors.initials: RM
authors.lastname: Issler
authors.forename: Elsa Regina Justo
authors.initials: ER
authors.lastname: Giugliani
authors.forename: Paulo José Cauduro
authors.initials: PJ
authors.lastname: Marostica
authors.forename: Fabiane
authors.initials: F
authors.lastname: Nieto
authors.forename: Adriana Rosa
authors.initials: AR
authors.lastname: Milani
authors.forename: Anelise Schifino
authors.initials: AS
authors.lastname: Wolmeister
authors.forename: Mateus Breitenbach
authors.initials: MB
authors.lastname: Scherer
authors.forename: Daniela Oliveira
authors.initials: DO
authors.lastname: Pires
authors.forename: Marcia Nunes
authors.initials: MN
authors.lastname: Oliveira
authors.forename: Danusa Graeff Chagas
authors.initials: DG
authors.lastname: Pinto
authors.forename: Bianca Fernandes
authors.initials: BF
authors.lastname: Sarturi
authors.forename: Luis Felipe Silva
authors.initials: LF
authors.lastname: Smidt
authors.forename: Manoela Chitolina
authors.initials: MC
authors.lastname: Villetti
mesh_terms: D000328:Adult; D001513:Beds / Q000706:statistics & numerical data*; D001938:Brazil / Q000453:epidemiology; D001942:Breast Feeding; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008425:Maternal Behavior; D009034:Mother-Child Relations; D015995:Prevalence; D012890:Sleep; D012959:Socioeconomic Factors; D013398:Sudden Infant Death / Q000517:prevention & control; D014505:Urban Population