%0 Journal Article
%T Longitudinal course and risk factors for fatigue in adolescents: The mediating role of sleep disturbances
%J Journal of pediatric psychology
%D 2013
%A Tham, See Wan
%A Holley, Amy Lewandowski
%A Zhou, Chuan
%A Clarke, Gregory N.
%A Palermo, Tonya M.
%V 38
%N 10
%P 1070-1080
%X OBJECTIVES: This study (1) examines fatigue over 1 year in adolescents with chronic pain (n = 61) and depressive disorders (n = 51) compared with healthy adolescents (n = 60), (2) identifies longitudinal risk factors, and (3) tests sleep disturbances as a mediator between depression and fatigue. METHODS: Adolescents completed questionnaires at baseline, 6, and 12 months. Mixed effects models examined associations between risk factors and fatigue; structural equation modeling assessed contemporaneous and longitudinal mediation. RESULTS: Results revealed fatigue persisted at 1 year follow-up, with adolescents in the clinical samples experiencing greater fatigue than healthy youth at all time points (ps < .001). Age, baseline depression, and baseline sleep disturbances predicted longitudinal fatigue for the total sample (ps < .05), with variation in predictors by subgroup. Sleep quality mediated the contemporaneous effects of depression on fatigue in the clinical samples (ps < .05). CONCLUSIONS: Findings underscore the longitudinal course of fatigue and suggest that improving sleep disturbances may reduce fatigue in clinical samples.<p /> <p>Language: en</p>
%G en
%I Oxford University Press
%@ 0146-8693
%U http://dx.doi.org/10.1093/jpepsy/jst051