title: Sleep-wake activity rhythm and health-related quality of life among patients with coronary artery disease and in a population-based sample--an actigraphy and questionnaire study.
abstract: The aim of this study was to explore whether there are gender differences in sleep and health-related quality of life in patients with coronary artery disease (CAD) and a matched population-based sample and to see how subjectively rated sleep is associated with actigraphy. Secondly, to explore whether factors that predict patients' sleep quality could be identified. Fifty-seven patients with stable CAD and 47 participants from a population-based sample were included. All participants completed the Uppsala Sleep Inventory (USI), the Epworth Sleepiness Scale and the SF-36. Actigraphy recordings and a sleep diary were performed for seven 24-h periods. Multiple stepwise regression analysis showed that sleep duration, sleep onset latency, nocturnal awakenings, vitality (SF-36) and body mass index explained 60% of the sleep quality outcome (USI). Sleep duration, sleep efficiency and fragmentation index assessed with actigraphy and sleep diary accounted for 36% of the sleep quality outcome (diary). The result can form the basis for a non-pharmacological, self-care programme supported and led by nurses.
authors.affiliation: Department of Cardiology, Skaraborgs Hospital, Skövde, Sweden. anna.m.johansson@vgregion.se
authors.forename: Anna
authors.initials: A
authors.lastname: Johansson
authors.forename: Eva
authors.initials: E
authors.lastname: Svanborg
authors.forename: Ulla
authors.initials: U
authors.lastname: Edéll-Gustafsson
mesh_terms: D056044:Actigraphy; D003324:Coronary Artery Disease / Q000503:physiopathology*; D006801:Humans; D011788:Quality of Life; D012890:Sleep; D011795:Surveys and Questionnaires; D013548:Sweden; D014851:Wakefulness
keywords: actigraphy; coronary artery disease; health-related quality of life; sleep quality; sleep-activity rhythm