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Epidemiology of co-sleeping and nighttime waking at 12 months in a birth cohort

Iná S Santos1, Denise M Mota, Alicia Matijasevich

  • 1Programa de Pós-Graduação em Epidemiologia, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil.

Jornal De Pediatria
|April 1, 2008
PubMed

Insights

Co-sleeping and nighttime waking are common in infants at 12 months old. These sleep patterns are associated with maternal socioeconomic factors and child characteristics, suggesting a need for further investigation into long-term effects.

Area of Science:

  • Pediatric sleep research
  • Maternal and child health
  • Epidemiology of infant behavior

Background:

  • Co-sleeping and nighttime waking are prevalent infant sleep behaviors.
  • Understanding factors influencing these behaviors is crucial for child development.
  • The Pelotas 2004 cohort provides a valuable dataset for longitudinal analysis.

Purpose of the Study:

  • To determine the prevalence of co-sleeping and nighttime waking in 12-month-old infants.
  • To identify sociodemographic and reproductive factors associated with these sleep patterns.
  • To explore the relationship between co-sleeping and nighttime waking.

Main Methods:

  • Longitudinal study of the Pelotas 2004 birth cohort in Brazil.
  • Mothers interviewed at delivery and 12 months postpartum.
  • Data collected on sociodemographics, reproductive history, and infant sleep; analyzed using Poisson regression.

Main Results:

  • Prevalence of co-sleeping was 45.8%; associated with lower socioeconomic status, less maternal education, younger maternal age, and more previous births.
  • Prevalence of nighttime waking was 46.1%; associated with male infants, more previous pregnancies, and maternal employment during pregnancy.
  • Co-sleeping was more common in children who experienced nighttime waking.

Conclusions:

  • Co-sleeping and nighttime waking are common infant sleep behaviors in the study population.
  • These sleep patterns are linked to maternal and child characteristics.
  • Further follow-up is needed to understand the persistence and developmental consequences of these sleep habits.
Abstract

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