Table 1. Multiple logistic regression analysis of variables affecting the development of SLE
| OR† (95% CI) | P-value | |
|---|---|---|
| Ever-Smokers | 2.50 (1.48–4.21) | 6.23×10-4 |
| HLA risk allele (*1501, *0803) | ||
| Single copy | 1.86 (1.45-2.39) | 1.22×10-6 |
| Double copies | 3.23 (1.71–6.12) | 3.13×10-4 |
†All odds ratios (OR) and 95% confidence intervals (95% CI) were calculated by logistic regression and were adjusted for age.