. Author manuscript; available in PMC: 2010 Jul 15.

Published in final edited form as: Arthritis Rheum. 2009 Jul 15;61(7):859–866. doi: 10.1002/art.24585

Table 2.

Prognostic factors for severe radiographic damage (being in the highest quartile of the distribution of BASRI-S/duration of AS), by multivariate logistic regression analysis. All variables were included in the model.

	Adjusted Odds Ratio	95% Confidence Interval	P
Age of onset, per year	1.10	1.07, 1.15	<.0001
Male	1.90	0.97, 3.74	.07
Current smoker	4.72	2.16, 10.30	<.0001
HLA B*4100	11.73	1.07, 127.82	.05
DRB1*0804	12.32	1.05, 143.63	.05
DRB1*0801	0.03	0.002, 0.31	.004
DQA1*0401	5.24	1.35, 20.33	.02
DQB1*0603	3.42	1.43, 8.16	.006
DPB1*0202	23.36	1.87, 291.87	.02