STUDY OBJECTIVES: Disturbed sleep is a common complaint in @entity1 with @entity309 ( @entity309 ). The majority of the research investigating relationships between sleep and @entity1 -reported outcomes in @entity309 has focused on @entity158 and @entity308 . Poor sleep may also affect disability, though this association has not been explored in @entity309 . The present study represents a cross-sectional examination of the relationship between @entity25 and functional disability in 162 @entity1 with @entity309 . @entity308 , @entity158 severity, and @entity1295 were examined as separate mediators of the relationship between @entity25 and disability. METHODS: The sample had an average age of 58.47 years, and 76% were female. @entity1 completed the following questionnaires as part of a medication adherence intervention study: Pittsburgh Sleep Quality Index, Beck @entity308 Inventory-II, Medical Outcomes Study Short Form-36, and the Health Assessment Questionnaire. RESULTS: Poor @entity25 was significantly correlated with higher levels of @entity308 , greater @entity158 severity, @entity717 . Hierarchical regression analyses showed that @entity25 was not associated with functional disability when @entity308 , @entity158 severity, and @entity1295 were entered into the model. Separate mediation analyses of @entity308 , @entity158 severity, and @entity1295 revealed that @entity158 severity and @entity1295 were mediators of the relationship between @entity25 and disability. CONCLUSIONS: Sleep quality has an indirect effect on functional disability through its relationship with @entity158 severity and @entity1295 . Future research should investigate whether improvements in sleep can reduce disability in @entity1 with @entity309 .

Sleep quality and functional disability in @entity1 with XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient', 'Participants'] @entity308 :: ('MESH:D003866', 'Disease') :: ['Depression', 'depressive symptoms', 'depression'] @entity25 :: ('MESH:D012893', 'Disease') :: ['sleep quality'] @entity1295 :: ('MESH:D005221', 'Disease') :: ['fatigue'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain'] @entity717 :: ('MESH:D009069', 'Disease') :: ['increased fatigue, and greater functional disability'] @entity309 :: ('MESH:D001172', 'Disease') :: ['rheumatoid arthritis', 'RA']
@entity309 :: (MESH:D001172,Disease) :: ['rheumatoid arthritis']
