Variable | Univariate model | Multivariate model | ||||
OR | 95% CI | P value | OR | 95% CI | P value | |
Sex (male) | 0.638 | (0.131 to 3.106) | 0.578 | |||
Age at diagnosis of PsA or AS in years | 1.063 | (1.002 to 1.129) | 0.043 | |||
Nail lesion | 17.295 | (4.923 to 60.760) | <0.001 | 12.370 | (2.215 to 69.073) | 0.004 |
Inflammatory back pain | 0.170 | (0.054 to 0.537) | 0.003 | 0.116 | (0.074 to 1.320) | 0.011 |
HLA-B*27 | 0.200 | (0.074 to 0.540) | 0.001 | 0.312 | (0.074 to 1.320) | 0.113 |
Biologics | 0.125 | (0.043 to 0.368) | <0.001 | 0.319 | (0.074 to 1.380) | 0.126 |
AS, ankylosing spondylitis; BASDAI, Bath Ankylosing Spondylitis Disease Activity Index; HAQ, Health Assessment Questionnaire; PsA, psoriatic arthritis.