Table 2. Mean scores for participants for clinical variables (N = 120).

	Scores for all participants				Participants with Abnormal/severe measures
Variable	Mean	SD	Median	Range	n (%), index
Physio-pathological
CRP, mg/dl	0.62	1.23	0.23	0–8.19	18 (15%), ≥ 1.0 mg/dl
ESR, mm/hr	9.80	10.58	7.00	0–73.0	11 (9%), ≥ 20 mm/hr
Cobb's angle, degrees	23.10	16.14	23.00	0–70	64 (53.3%), moderate/severe
Sacroiliac joint severity
Left	2.84	0.91	3.00	0–4	65 (54.2%), level 3 or 4
Right	2.81	0.91	3.00	0–4	62 (51.6%), level 3 or 4
Self-report
BASDAI	2.90	2.01	2.45	0–8.4	43 (35.8%) - 23(19.2%), moderate—severe
BASFI	2.27	2.27	1.32	0–8.2	29 (24.2%) - 22(18.3%), moderate—severe
Depression (BDI-II)	9.50	8.30	8.00	0–42	30 (25.0%), mild—severe
Pain (NRS)	3.47	2.09	3.00	0–10	13 (11.7%), severe pain (7–10 points)
Body Image (BIS)	68.17	16.14	68.00	31–100

SD: standard deviation; CRP:C-Reactive Protein; ESR: Erythrocyte sedimentation rate; BID-II-C, Chinese

version of the Beck Depression Instrument-II; ≥14 = mild to severe depression; BIS, Body Image Scale

BASDAI, Bath Ankylosing Spondylitis Disease Activity Index; BASFI: Bath Ankylosing Spondylitis Functional Index

NRS: Numeric Pain Rating Scale; BIS: Body Image Scale