Table 1

Sociodemographic characteristics of patients with ankylosing spondylitis compared with controls (n=70 206)

VariablePatients with ankylosing spondylitis (n=11 701)Patients without ankylosing spondylitis (n=58 505)
Age (years)
 ≤447818 (66.8)39090 (66.8)
 45–643275 (28.0)16375 (28.0)
 ≥65608 (5.2)3040 (5.2)
Sex
 Male9260 (79.1)46300 (79.1)
 Female2441 (20.9)12205 (20.9)
Urbanisation level
 13551 (30.4)17754 (30.4)
 23301 (28.2)16502 (28.2)
 31987 (17.0)9932 (17.0)
 41512 (12.9)7561 (12.9)
 51352 (11.6)6756 (11.6)
Monthly income
 <NT$150004524 (38.7)22620 (38.7)
 NT$15000–300001140 (9.7)5697 (9.7)
 NT$30001–500003617 (30.9)18086 (30.9)
 >NT$500002420 (20.7)12102 (20.7)
  • Data shown as n (%).