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Published in: BMC Pediatrics 1/2019

Open Access 01-12-2019 | Sudden Infant Death Syndrome | Research article

Prevalence and associated factors of supine sleep position in 3-month-old infants: findings from the 2015 Pelotas (Brazil) Birth Cohort

Authors: Bruna Gonçalves C. da Silva, Mariângela Freitas da Silveira, Paula Duarte de Oliveira, Marlos Rodrigues Domingues, Nelson Arns Neumann, Fernando C. Barros, Andréa Dâmaso Bertoldi

Published in: BMC Pediatrics | Issue 1/2019

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Abstract

Background

Non-supine infant sleep position is an important modifiable risk factor for sudden unexpected death in infancy. The aim of this study was to assess the prevalence of supine sleep position and associated factors among 3-month-old infants from a birth cohort in the city of Pelotas, southern Brazil.

Methods

The present study evaluated longitudinal data from the 2015 Pelotas Birth Cohort. Study outcome was supine infant sleep position, defined as the appropriate position, among 3-month-old children. Demographic, socioeconomic, behavioral, and health characteristics collected at birth and at the 3-month follow-up were investigated as possible associated factors. The prevalence of each associated factor was investigated, and crude and hierarchical adjusted analyses were performed using Poisson regression.

Results

Among the 4108 infants assessed in this study, 2274 (55.4%) slept in supine position at 3 months and only 66 (1.6%) in prone position. Maternal white skin color, higher family income and maternal schooling, advanced maternal age, maternal cohabiting with a partner, receiving counseling from health care professionals and non-bed-sharing were associated with higher prevalence of infants sleeping in supine position at 3 months. All these variables remained associated in our hierarchical adjusted analyses except maternal cohabitation with a partner. Participants with white mothers were more likely to sleep in supine position (PR: 1.23; 95%CI: 0.75–0.89) compared to participants with black mothers. Those belonging to the richest quintile were more likely to sleep in supine position (PR: 1.49; 95%CI: 1.35–1.65) compared to those who belong to the poorest. Mothers aged 31–36 years were more likely to choose supine sleep position (PR: 1.65; 95%CI: 1.42–1.92) compared to mothers younger than 19 years.

Conclusions

The findings of the present study showed the influence of maternal age, socioeconomic status, and counseling on infant sleep habits as predictors of choice of infant sleep position in a Brazilian population. It is recommended to implement informative campaigns and public policies to at-risk population and to improve recommendations from health care professionals.
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Metadata
Title
Prevalence and associated factors of supine sleep position in 3-month-old infants: findings from the 2015 Pelotas (Brazil) Birth Cohort
Authors
Bruna Gonçalves C. da Silva
Mariângela Freitas da Silveira
Paula Duarte de Oliveira
Marlos Rodrigues Domingues
Nelson Arns Neumann
Fernando C. Barros
Andréa Dâmaso Bertoldi
Publication date
01-12-2019
Publisher
BioMed Central
Published in
BMC Pediatrics / Issue 1/2019
Electronic ISSN: 1471-2431
DOI
https://doi.org/10.1186/s12887-019-1534-3

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