A different rhythm of life: sleep patterns in the first 4 years of life and associated sociodemographic characteristics in a large Brazilian birth cohort
| Autor: | Iná S. Santos, Aluísio J D Barros, Alicia Matijasevich, Elena Netsi, Fernando C. Barros, Alan Stein |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Gerontology
Adult Male Longitudinal study Child sleep Time Factors Adolescent Population Mothers PELOTAS (RS) Bedtime Pelotas 2004 Birth Cohort 03 medical and health sciences LMIC Habits Young Adult 0302 clinical medicine Rhythm 030225 pediatrics Waketime Cognitive development Humans Longitudinal Studies Prospective Studies education education.field_of_study Co-sleeping Infant Newborn Infant General Medicine Sleep in non-human animals 3. Good health Socioeconomic Factors Child Preschool Regression Analysis Original Article Female Psychology Birth cohort Sleep 030217 neurology & neurosurgery Brazil Follow-Up Studies |
| Zdroj: | Sleep Medicine Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1878-5506 1389-9457 |
| Popis: | Objective Sleep is an important marker of healthy development and has been associated with emotional, behavioral, and cognitive development. There is limited longitudinal data on children's sleep with only a few reports from low- and middle-income countries (LMICs). We investigate sleep parameters and associated sociodemographic characteristics in a population-based longitudinal study in Pelotas, Brazil. Methods Data from the Pelotas 2004 Birth Cohort were used (N = 3842). Infant sleep was collected through maternal report at 3, 12, 24, and 48 months: sleep duration, bed and wake time, nighttime awakenings, co-sleeping and sleep disturbances (24 and 48 months). Results Compared to children in high-income countries (HICs), children in Brazil showed a substantial shift in rhythms with later bed and wake times by approximately 2 hours. These remain stable throughout the first 4 years of life. This population also shows high levels of co-sleeping which remain stable throughout (49.0–52.2%). Later bedtime was associated with higher maternal education and family income. Higher rates of co-sleeping were seen in families with lower income and maternal education and for children who were breastfed. All other sleep parameters were broadly similar to data previously reported from HICs. Conclusion The shift in biological rhythms in this representative community sample of children in Brazil challenges our understanding of optimal sleep routine and recommendations. Highlights • Biological rhythms are shifted with later bedtime by approximately 2 h (22.18 hours). • Later bedtime is associated with higher maternal education and family income. • High levels of co-sleeping are prevalent until 4 years of age (49% at 3 months to 52% at 4 years). • Co-sleeping was more prevalent in families with lower income and maternal education. |
| Databáze: | OpenAIRE |
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