Fatigue and contributing factors in Chinese patients with ankylosing spondylitis.

These findings suggested that medical personnel should pay more attention to AS patients with fatigue and take effective measures to relieve fatigue. Key Points • Incidence of fatigue in AS patients is 48.7% according to this cross-sectional study. • The occurrence of fatigue was associated with higher WHR, higher BASDAI, and sleep disturbance. • We also found that the occurrence of fatigue significantly reduced the quality of life in AS patients both physically and psychologically.