Variable | Beta coefficient | Odds ratio (95% CI) | P value |
---|---|---|---|
Systemic sclerosis ( n = 85)a |  |  |  |
Age (per 5Â years) | 0.904 | 2.47 (1.61 to 3.78) | <0.001 |
Nicotine use (per 5 pack-years) | 0.554 | 1.74 (1.13 to 2.68) | 0.012 |
Prednisolone intake (per 5Â mg/day over 5Â years) | 0.940 | 2.56 (1.09 to 6.04) | 0.032 |
Systemic lupus erythematosus ( n = 98)b |  |  |  |
Age (per 5Â years) | 0.824 | 2.28 (1.61 to 3.22) | <0.001 |
Nicotine use (per 5 pack-years) | 0.313 | 1.37 (1.05 to 1.78) | 0.021 |
ssDNA antibody positive | -1.613 | 0.20 (0.05 to 0.83) | 0.026 |
Duration of azathioprine use (per 5Â years) | 0.947 | 2.58 (0.93 to 7.13) | 0.068 |