Table 1.

Characteristics of the patients with AS

Patient characteristics	Total	Active AS	Inactive AS
Number of patients	76	54	22
Gender (M/F)	M (54) / F (22)	M (37) / F (17)	M (17) / F (5)
Age (mean±SD)	42.9±12.1	45.3±12.0	37.4±10.2
Human leucocyte antigen-B27+ (%)	89.47%	88.9%	90.9%
Inflammatory bowel disease (%)	6.6%	7.4%	4.5%
Psoriasis (%)	3.9%	5.5%	0%
Uveitis (%)	27.6%	22.2%	36.4%
Tumour necrosis factor inhibitor (%)	53.9%	42.6%	81.8%
ASDAS (mean±SD)	1.92±1.00	2.35±0.87	0.86±0.23
ASDAS range	0.2–4.1	1.3–4.1	0.2–1.2

AS, ankylosing spondylitis; ASDAS, Ankylosing Spondylitis Disease Activity Score.