Table 3

Univariate analyses of the association with reduced survival of various variables expressed by level of significance

Variable	p Value	Variable	p Value
Gender	0.126	Chest expansion	0.021
Age at onset of AS	0.155	Occiput-wall distance	<0.001
Polyarthritis	0.080	Finger-to-floor distance	0.310
Crohn's disease	0.560	CRP	<0.001
Psoriasis	0.057	ESR	0.003
CVD	0.003	Haemoglobin	0.430
Non-NSAID use	0.049	Leucocytes	0.600
Diagnostic delay	0.024	Thrombocytes	0.557
Education (years of)	0.087	AST	0.270
Work disabled	0.001	ALT	0.920
Age at follow-up	<0.001	ALP	0.697
BASFI	0.001	Creatinine	0.811
Modified Schober	0.005	TSH	0.939

AS, ankylosing spondylitis; ALP, alkaline phosphatase; ALT, alanine transaminase; AST, aspartate transaminase; BASFI, Bath Ankylosing Spondylitis Functional Index; CVD, cardiovascular disease; CRP, C-reactive protein; ESR, erythrocyte sedimentation rate; NSAIDs, non-steroidal anti-inflammatory drugs; TSH, thyroid stimulating hormone.