Researchers have found that poor sleep quality is associated with higher levels of depressive symptoms, greater pain severity, increased fatigue, and greater functional disability in patients with Rheumatoid Arthritis (RA).
Results show that sleep quality has an indirect effect on functional disability after controlling for age, gender and number of comorbities. According to the PSQI results, 61 per cent of patients were poor sleepers and 33 per cent reported having pain that disturbed their sleep three or more times per week. The study appeared in the Feb. 15 issue of the Journal of Clinical Sleep Medicine. ANI