Correlation of fatigue with pain and disability in rheumatoid arthritis and osteoarthritis, respectively.

Objective: To investigate the correlation of fatigue with pain in rheumatoid arthritis patients and with disability in osteoarthritis patients.

Methods: Twenty patients with rheumatoid arthritis and 20 patients with osteoarthritis were evaluated. The degree of fatigue was evaluated with a visual analogue scale and the Multidimensional Assessment of Fatigue.