Poor sleep worsens disability in OA

Poor sleep in osteoarthritis patients increases depression and disability but does not worsen pain over time, according to US research.

The study of 367 patients with knee OA found sleep disturbance predicted functional decline, regardless of baseline depressive symptoms or increased pain.

“This has important implications for treatment, suggesting that the documented efficacy of analgesic treatment of OA-related pain in reducing sleep disturbance may help relieve pain-related emotional distress as well,” write the researchers in the journal Arthritis Care & Research.