Non-linear relationship between maternal work hours and child body weight: evidence from the Western Australian Pregnancy Cohort (Raine) Study
journal contributionposted on 2023-05-19, 10:09 authored by Li, J, Akaliyski, P, Schafer, J, Kendall, G, Wendy OddyWendy Oddy, Stanley, F, Strazdins, L
Using longitudinal data from the Western Australia Pregnancy Cohort (Raine) Study and both random-effects and fixed-effects models, this study examined the connection between maternal work hours and child overweight or obesity. Following children in two-parent families from early childhood to early adolescence, multivariate analyses revealed a non-linear and developmentally dynamic relationship. Among preschool children (ages 2 to 5), we found lower likelihood of child overweight and obesity when mothers worked 24 h or less per week, compared to when mothers worked 35 or more hours. This effect was stronger in low-to-medium income families. For older children (ages 8 to 14), compared to working 35-40 h a week, working shorter hours (1-24, 25-34) or longer hours (41 or more) was both associated with increases in child overweight and obesity. These non-linear effects were more pronounced in low-to-medium income families, particularly when fathers also worked long hours.
Publication titleSocial Science & Medicine
Department/SchoolMenzies Institute for Medical Research
PublisherPergamon-Elsevier Science Ltd
Place of publicationThe Boulevard, Langford Lane, Kidlington, Oxford, England, Ox5 1Gb
Rights statementCopyright 2017 Elsevier Ltd.