Sono, trabalho e estudo: duração do sono em estudantes trabalhadores e não trabalhadores / Sleep, work, and study: sleep duration in working and non-working students

RESUMO

Este estudo objetivou investigar a duração do sono e fatores associados em escolares trabalhadores e não trabalhadores. Foram coletadas informações sobre o padrão do ciclo vigília/sono de 863 adolescentes de 10 a 19 anos em escolas de São Paulo, Brasil. Análises ajustadas foram aplicadas para comparação da duração do sono entre trabalhadores e não trabalhadores. O porcentual de adolescentes trabalhadores foi de 18,4 por cento e 52 por cento dos jovens que trabalhavam apresentaram oito ou menos horas de sono. A prevalência de baixa duração do sono foi maior nos trabalhadores dos sexos masculino (p = 0,017) e feminino (p < 0,001). Os estudantes trabalhadores apresentaram menor duração do sono mesmo com ajuste pela classe socioeconômica (p < 0,001). Apesar de existirem mais trabalhadores no turno da noite, no modelo ajustado pelo sexo e nível socioeconômico, os estudantes trabalhadores do turno da tarde apresentaram maior prevalência de baixa duração do sono (RP = 2,53; IC95 por cento 1,68-4,12).

ABSTRACT

The aim of this study was to investigate the duration of sleep and associated factors in working and non-working students. Data were analyzed on the sleep-wake cycle in 863 teenage students in São Paulo, Brazil. Adjusted analyses were performed to compare sleep duration in working and non-working students. 18.4 percent of the group worked, and 52 percent of the working students slept eight hours or less per night. Prevalence of short sleep duration was higher in working students of both sexes (males, p = 0.017; females, p < 0.001). Working students showed short sleep duration in the analysis adjusted for socioeconomic status, but short sleep was more frequent in older adolescents (p = 0.004) and in lower (p = 0.001) and middle (p = 0.011) socioeconomic classes. Although more working students were in night school, in the model adjusted for gender and socioeconomic status, working students in afternoon courses showed higher prevalence of short sleep duration (PR = 2.53; 95 percentCI 1.68-4.12).

Sujets)

Adolescent; Enfant; Femelle; Humains; Mâle; Étudiants; Sommeil/physiologie; Travail; Tolérance à l'horaire de travail/physiologie; Brésil; Prévalence; Facteurs socioéconomiques; Enquêtes et questionnaires; Facteurs temps

Adolescent; Adolescente; Privação do Sono; Sleep Deprivation; Sleep; Sono; Trabalho; Work

ABSTRACT

The aim of this study was to investigate the duration of sleep and associated factors in working and non-working students. Data were analyzed on the sleep-wake cycle in 863 teenage students in São Paulo, Brazil. Adjusted analyses were performed to compare sleep duration in working and non-working students. 18.4 percent of the group worked, and 52 percent of the working students slept eight hours or less per night. Prevalence of short sleep duration was higher in working students of both sexes (males, p = 0.017; females, p < 0.001). Working students showed short sleep duration in the analysis adjusted for socioeconomic status, but short sleep was more frequent in older adolescents (p = 0.004) and in lower (p = 0.001) and middle (p = 0.011) socioeconomic classes. Although more working students were in night school, in the model adjusted for gender and socioeconomic status, working students in afternoon courses showed higher prevalence of short sleep duration (PR = 2.53; 95 percentCI 1.68-4.12).