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Title: Restless legs syndrome, insomnia, and quality of life after renal transplantation.
Authors: Molnar MZ, Novak M, Szeifert L, Ambrus C, Keszei A, Koczy A, Lindner A, Barotfi S, Szentkiralyi A, Remport A, Mucsi I.
Year: 2007
Journal: Journal of Psychosomatic Research
Volume 63
Issue 6
Page(s) 591-7
Abstract* OBJECTIVE: Restless legs syndrome (RLS) is associated with insomnia and impaired quality of life (QoL) in patients on maintenance dialysis; however, no information has been published on the association of RLS and QoL in kidney-transplanted patients. In a cross-sectional study, we analyzed the complex relationship between RLS, insomnia, and health-related QoL in kidney-transplanted patients. METHODS: In a cross-sectional survey at a single transplant center, 1067 patients were invited to participate. Complete data set was available from 785 kidney-transplanted patients. The RLS Questionnaire and the Athens Insomnia Scale were used to assess the prevalence of RLS and insomnia, respectively. QoL was measured using the Kidney Disease QoL-SF Questionnaire. RESULTS: Patients with RLS were three times more likely to have insomnia than patients without RLS (29% vs. 9%, P=.001), and the presence of RLS was a significant and independent predictor of insomnia in multivariate analysis. The presence of RLS was independently associated with impaired health-related QoL along several QoL domains after statistical adjustment for clinical and sociodemographic covariables. Importantly, this association remained significant even after adjusting for insomnia for some QoL domains. CONCLUSION: RLS is associated with poor sleep, increased odds for insomnia, and impaired QoL in kidney-transplanted patients. Our results suggest that both sleep-related and sleep-independent factors may contribute to the association of RLS and QoL.
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