| Univariable | Model 1* | Model 2†| ||||||
---|---|---|---|---|---|---|---|---|---|
OR | 95% CI | P | OR | 95% CI | P | OR | 95% CI | P | |
Age | 1.039 | 1.016, 1.062 | 0.001 | 1.025 | 0.997, 1.054 | 0.077 | 1.027 | 0.999, 1.056 | 0.061 |
Male | 1.580 | 0.900, 2.774 | 0.111 | Â | Â | Â | 1.477 | 0.768, 2.840 | 0.243 |
Obesity (BMI ≥ 25 kg/m2) | 1.074 | 0.653, 1.764 | 0.779 |  |  |  |  |  |  |
Alcohol drinker | 3.748 | 2.098, 6.694 | < 0.001 | 4.748 | 2.488, 9.061 | < 0.001 | 4.401 | 2.287, 8.469 | < 0.001 |
Current smoker | 1.317 | 0.772, 2.248 | 0.312 | Â | Â | Â | 1.039 | 0.567, 1.905 | 0.900 |
Uveitis history | 1.870 | 1.155, 3.029 | 0.011 | 2.117 | 1.214, 3.689 | 0.008 | 2.119 | 1.212, 3.704 | 0.008 |
Elevated BASDAI (≥ 4) | 1.218 | 0.713, 2.081 | 0.471 |  |  |  |  |  |  |
Very high ASDAS-CRP (> 3.5) | 3.232 | 0.870, 12.015 | 0.080 | 3.049 | 0.760, 12.234 | 0.116 | 3.391 | 0.825, 13.938 | 0.090 |
Positive HLA-B27 | 0.843 | 0.304, 2.335 | 0.743 | Â | Â | Â | Â | Â | Â |
Mean grade of sacroiliitis | 1.554 | 1.230, 1.963 | < 0.001 |  |  |  |  |  |  |
Pre-existing syndesmophyte | 2.268 | 1.380, 3.729 | < 0.001 | 1.762 | 0.956, 3.247 | 0.069 | 1.644 | 0.882, 3.065 | 0.117 |