From: Prevalence of chronic widespread pain in a population-based cohort of patients with spondyloarthritis – a cross-sectional study
AS
USpA
Women
Men
Total
n = 184
n = 352
n = 536
p-value
n = 208
n = 143
n = 351
NCP
30.4
40.3
36.9
22.1
38.5
28.8
CRP
17.9
17.6
17.7
21.6
22.4
21.9
CWP
51.6
42.0
45.3
0.059 a
56.2
39.2
49.3
0.002 a