title: Validity and reliability of sleep time questionnaires in children and adolescents: A systematic review and meta-analysis.
abstract: Sleep duration has been associated with several health outcomes in children and adolescents. As an extensive number of questionnaires are currently used to investigate sleep schedule or sleep time, we performed a systematic review of criterion validation of sleep time questionnaires for children and adolescents, considering accelerometers as the reference method. We found a strong correlation between questionnaires and accelerometers for weeknights and a moderate correlation for weekend nights. When considering only studies performing a reliability assessment of the used questionnaires, a significant increase in the correlations for both weeknights and weekend nights was observed. In conclusion, moderate to strong criterion validity of sleep time questionnaires was observed; however, the reliability assessment of the questionnaires showed strong validation performance.
authors.affiliation: Youth/Child and Cardiovascular Risk and Environmental (YCARE) Research Group, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil; Department of Preventive Medicine, School of Medicine of the University of São Paulo, São Paulo, Brazil. Electronic address: marcus1986@usp.br.
authors.forename: Marcus V
authors.initials: MV
authors.lastname: Nascimento-Ferreira
authors.affiliation: Youth/Child and Cardiovascular Risk and Environmental (YCARE) Research Group, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil; Growth, Exercise, Nutrition and Development (GENUD) Research Group, Faculty of Health Sciences, University of Zaragoza, Zaragoza, Spain; Department of Preventive Medicine, School of Medicine of the University of São Paulo, São Paulo, Brazil.
authors.forename: Tatiana S
authors.initials: TS
authors.lastname: Collese
authors.affiliation: Youth/Child and Cardiovascular Risk and Environmental (YCARE) Research Group, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil; Growth, Exercise, Nutrition and Development (GENUD) Research Group, Faculty of Health Sciences, University of Zaragoza, Zaragoza, Spain; Department of Preventive Medicine, School of Medicine of the University of São Paulo, São Paulo, Brazil.
authors.forename: Augusto César F
authors.initials: AC
authors.lastname: de Moraes
authors.affiliation: Youth/Child and Cardiovascular Risk and Environmental (YCARE) Research Group, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil; Growth, Exercise, Nutrition and Development (GENUD) Research Group, Faculty of Health Sciences, University of Zaragoza, Zaragoza, Spain; Department of Preventive Medicine, School of Medicine of the University of São Paulo, São Paulo, Brazil.
authors.forename: Tara
authors.initials: T
authors.lastname: Rendo-Urteaga
authors.affiliation: Growth, Exercise, Nutrition and Development (GENUD) Research Group, Faculty of Health Sciences, University of Zaragoza, Zaragoza, Spain; Department of Preventive Medicine, School of Medicine of the University of São Paulo, São Paulo, Brazil; School of Health Sciences of the University of Zaragoza, Zaragoza, Spain.
authors.forename: Luis A
authors.initials: LA
authors.lastname: Moreno
authors.affiliation: Youth/Child and Cardiovascular Risk and Environmental (YCARE) Research Group, School of Medicine, University of Sao Paulo, Sao Paulo, Brazil; Department of Preventive Medicine, School of Medicine of the University of São Paulo, São Paulo, Brazil.
authors.forename: Heráclito B
authors.initials: HB
authors.lastname: Carvalho
mesh_terms: D000293:Adolescent; D002648:Child; D006801:Humans; D015203:Reproducibility of Results; D012890:Sleep / Q000502:physiology*; D011795:Surveys and Questionnaires / Q000592:standards*; D013997:Time Factors
keywords: Accelerometer; Actigraph; Adolescents; Children; Questionnaire; Reliability; Sleep time; Systematic review; Validity