Jean?Philippe Chaput|Casey Gray|Veronica J. Poitras|Valerie Carson|Reut Gruber|Tim Olds|Shelly K. Weiss|Sarah Connor Gorber|Michelle E. Kho|Margaret Sampson|Kevin Belanger|Sheniz Eryuzlu|Laura Callender|Mark S. Tremblay
Systematic review of the relationships between sleep duration and health indicators in school-aged children and youth
Children's Hospital of Eastern Ontario|Children's Hospital of Eastern Ontario|Children's Hospital of Eastern Ontario|University of Alberta|Douglas Mental Health University Institute|University of South Australia|University of Toronto|Hospital for Sick Children|SickKids Foundation|Public Health Agency of Canada|McMaster University|Children's Hospital of Eastern Ontario|Children's Hospital of Eastern Ontario|Children's Hospital of Eastern Ontario|Children's Hospital of Eastern Ontario|Children's Hospital of Eastern Ontario
objective systematic review examine relationships objectively subjectively measured sleep duration various health indicators children youth aged 517 years online databases searched january 2015 date study design limits included studies peerreviewed met prioridetermined population apparently healthy children youth aged 517 years interventionexposurecomparator various sleep durations outcome adiposity emotional regulation cognitionacademic achievement quality lifewellbeing harmsinjuries cardiometabolic biomarkers criteria high levels heterogeneity across studies narrative syntheses employed total 141 articles 110 unique samples including 592 215 unique participants 40 different countries met inclusion criteria overall longer sleep duration associated lower adiposity indicators better emotional regulation better academic achievement better quality lifewellbeing evidence mixed andor limited association sleep duration cognition harmsinjuries cardiometabolic biomarkers quality evidence ranged low high across study designs health indicators conclusion confirmed previous investigations showing shorter sleep duration associated adverse physical mental health outcomes however available evidence relies heavily crosssectional studies using selfreported sleep better inform contemporary sleep recommendations need sleep restrictionextension interventions examine changes different outcome measures various amounts objectively measured sleep better sense doseresponse relationships