Results were similar when examining television viewing duration as a continuous variable, with each 1 hour per day of increased viewing decreasing sleep duration at follow-up visits (β = −0.11 95% CI, –0.18 to −0.05). Longitudinally, children with reported increases in television viewing duration over time (from <1.5 to ≥1.5 hours per day) had a reduction in sleep duration at follow-up visits. Results In cross-sectional analysis, children with longer periods of television viewing reported at baseline (≥1.5 hours per day) had shorter sleep duration. Main Outcomes and Measures Parent-reported child sleep duration measured in hours per day at 2 and 4 years of age in Sabadell and Valencia and at 6 and 9 years of age in Menorca. The study sample included 1713 children (468 from Menorca, 560 from Sabadell, and 685 from Valencia).Įxposure Parent-reported child television viewing duration measured in hours per day at 2 and 4 years of age in Sabadell and Valencia and at 6 and 9 years of age in Menorca. Objective To examine the association between hours of television viewing and sleep duration in preschool and school-aged children.ĭesign, Setting, and Participants Longitudinal, multicenter study among birth cohorts in Menorca, Sabadell, and Valencia from the Spanish Infancia y Medio Ambiente (environment and childhood) project. Importance This study used longitudinal data to examine potential associations between hours of television viewing and sleep duration in children.
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