Sleep timing and child and parent outcomes in Australian 4–9-year-olds: a cross-sectional and longitudinal study

Abstract

Objectives The aim of this study is to use national Australian time-diary data to examine both (1) cross-sectionally and (2) longitudinally whether being late versus early to sleep or wake is associated with poorer child behavior, quality of life, learning, cognition and weight status, and parental mental health. Methods Design/setting: Data from the first three waves of the Longitudinal Study of Australian Children were taken. Participants: A national representative sample of 4983 4–5-year-olds, recruited in 2004 from the Australian Medicare database and followed up biennially, was taken; 3631 had analyzable sleep information and a concurrent measure of health and well-being for at least on..