title: Relationship between sleep disturbance, depression and anxiety in the 12 months following a cardiac event.
abstract: We aimed to assess the prevalence of sleep disturbance in a cardiac patient population over a 12-month period and assess its relationship with treatment adherence, self-efficacy, anxiety and depression. A total of 134 patients consecutively admitted to two Australian hospitals after acute myocardial infarction (31%), or to undergo bypass surgery (29%) or percutaneous coronary intervention (40%) were interviewed at six weeks and four and 12 months. Sleep disturbance was measured using a recode of the Beck Depression Inventory (v.2) item 16. Anxiety and depression were assessed by the Hospital Anxiety and Depression Scale. Sleep disturbance was highly prevalent (69%) at 6 weeks but was not associated with 12-month psychological outcomes. Path analysis revealed that sleep disturbance at 4 months was, however, associated with reduced treatment adherence and self-efficacy, and higher anxiety and depression scores at 12 months. The high prevalence of sleep disturbance in this study and its association with psychological outcomes may have adverse prognostic implications and possibly impede cardiac rehabilitation efforts.
authors.affiliation: a Heart Research Centre , The Royal Melbourne Hospital , P.O. Box 2137, Melbourne , Victoria 3050 , Australia.
authors.forename: Michael R
authors.initials: MR
authors.lastname: Le Grande
authors.affiliation: a Heart Research Centre , The Royal Melbourne Hospital , P.O. Box 2137, Melbourne , Victoria 3050 , Australia.|b Centre on Behavioural Health , University of Hong Kong , Hong Kong , China.
authors.forename: Alun C
authors.initials: AC
authors.lastname: Jackson
authors.affiliation: a Heart Research Centre , The Royal Melbourne Hospital , P.O. Box 2137, Melbourne , Victoria 3050 , Australia.|c Department of Psychology , The University of Melbourne , Melbourne , Australia.
authors.forename: Barbara M
authors.initials: BM
authors.lastname: Murphy
authors.affiliation: d Department of Philosophy , The University of Melbourne , Melbourne , Australia.
authors.forename: Neil
authors.initials: N
authors.lastname: Thomason
mesh_terms: D000328:Adult; D000368:Aged; D001007:Anxiety / Q000453:epidemiology*; D001315:Australia / Q000453:epidemiology; D003327:Coronary Disease / Q000628:therapy*; D003863:Depression / Q000453:epidemiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011569:Psychiatric Status Rating Scales; D036301:Qualitative Research; D012008:Recurrence; D012306:Risk; D020377:Self Efficacy; D012893:Sleep Wake Disorders / Q000453:epidemiology* / Q000523:psychology*; D013997:Time Factors; D016903:Drug Monitoring
keywords: affective disorders; cardiac patients; longitudinal study; sleep patterns