TY - JOUR T1 - Systematic review of the relationships between sleep duration and health indicators in school-aged children and youth. JF - Appl Physiol Nutr Metab Y1 - 2016 A1 - Chaput, Jean-Philippe A1 - Gray, Casey E A1 - Poitras, Veronica J A1 - Carson, Valerie A1 - Reut Gruber A1 - Olds, Timothy A1 - Weiss, Shelly K A1 - Connor Gorber, Sarah A1 - Kho, Michelle E A1 - Sampson, Margaret A1 - Belanger, Kevin A1 - Eryuzlu, Sheniz A1 - Callender, Laura A1 - Tremblay, Mark S KW - Adolescent KW - Adolescent Behavior KW - Biomarkers KW - Cardiovascular Diseases KW - Child KW - Child Behavior KW - Child, Preschool KW - Health Status KW - Humans KW - Metabolic Syndrome X KW - Obesity KW - Quality of Life KW - Randomized Controlled Trials as Topic KW - Sleep KW - Treatment Outcome AB -

The objective of this systematic review was to examine the relationships between objectively and subjectively measured sleep duration and various health indicators in children and youth aged 5-17 years. Online databases were searched in January 2015 with no date or study design limits. Included studies were peer-reviewed and met the a priori-determined population (apparently healthy children and youth aged 5-17 years), intervention/exposure/comparator (various sleep durations), and outcome (adiposity, emotional regulation, cognition/academic achievement, quality of life/well-being, harms/injuries, and cardiometabolic biomarkers) criteria. Because of high levels of heterogeneity across studies, narrative syntheses were employed. A total of 141 articles (110 unique samples), including 592 215 unique participants from 40 different countries, met inclusion criteria. Overall, longer sleep duration was associated with lower adiposity indicators, better emotional regulation, better academic achievement, and better quality of life/well-being. The evidence was mixed and/or limited for the association between sleep duration and cognition, harms/injuries, and cardiometabolic biomarkers. The quality of evidence ranged from very low to high across study designs and health indicators. In conclusion, we confirmed previous investigations showing that shorter sleep duration is associated with adverse physical and mental health outcomes. However, the available evidence relies heavily on cross-sectional studies using self-reported sleep. To better inform contemporary sleep recommendations, there is a need for sleep restriction/extension interventions that examine the changes in different outcome measures against various amounts of objectively measured sleep to have a better sense of dose-response relationships.

VL - 41 IS - 6 Suppl 3 U1 - http://www.ncbi.nlm.nih.gov/pubmed/27306433?dopt=Abstract ER -