Quality of sleep in rheumatoid arthritis patients: Relationship with disease activity, depression and functional status

Abstract

Aim of the workTo assess sleep quality in Egyptian patients with rheumatoid arthritis (RA) and its relationship with disease activity, depression and functional status. Patients and methodsThis cross-sectional study included 133 RA patients and 76 age and sex matched controls. Sleep using the Pittsburg Sleep Quality Index (PSQI), Beck depression inventory (BDI), functional status using health assessment questionnaire (HAQ), visual analogue scale-pain (VAS), and disease activity score (DAS28) were assessed. ResultsPatients were 125 females and 8 males with a mean age of 42.5 ± 9.5 years and disease duration of 3.9 ± 1.3 years. 76 age and sex matched control were also included. Poor sleep quality was detected in 54.1% of patients. Patients had significantly higher scores in the subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, day-time dysfunction domains and in terms of the total PSQI score compared to the control (p < 0.05). A significant difference was found between RA patients with poor sleep quality and those with good sleep quality as regards marital status, HAQ, erythrocyte sedimentation rate (ESR), VAS, DAS28, morning stiffness duration, anti-cyclic citrullinated peptide (anti-CCP) (p < 0.05), and the BDI (p < 0.001). The multivariate regression analysis found that disease activity, functional disability and depression were predictors for poor sleep quality (p = 0.04, p = 0.01 and p < 0.001; respectively). ConclusionThe sleep quality is impaired in RA patients. The poor sleep quality is associated with disease activity, depression and functional disability. Systemic psychiatric screening, holistic assessment and targeted interventions are required to improve sleep quality and quality of life.