Table 1. Baseline characteristics of AS patients and duration from diagnosis to the onset of CV disease.

AS patients (N = 10,397)			AS patients with CV disease (N = 457)
Characteristics		N (%)	Duration (year)	N (%)
Sex	Female	5,705 (54.87)	<1	61 (13.35)
	Male	4,692 (45.13)	1–2	86 (18.82)
Age	<35	3,027 (29.11)	2–3	66 (14.44)
	35–45	2,082 (20.03)	3–4	50 (10.94)
	45–55	2,336 (22.47)	>4	195 (42.45)
	55–65	1,411 (13.57)
	>65	1,541 (14.82)

Abbreviation: AS, ankylosing spondylitis; CV, cardiovascular