Multiple conditional logistic regression analysis of drug-induced hepatitis
| Predictor variables# | Model A¶ | Model B+ |
| Mixed or daily dosing schedules | 1.1 (0.6–1.9) | 1.1 (0.6–1.9) |
| Non-Chinese | 1.9 (0.8–4.4) | 1.8 (0.8–4.1) |
| Elderly home residents | 0.3 (0.1–1.0) | 0.4 (0.1–1.2) |
| Treatment started in hospital | 1.6 (1.0–2.5) | 1.5 (0.9–2.4) |
| HBsAg carriers | NA | 1.8 (1.1–3.1)* |
| Ever-drinkers | NA | 1.4 (0.8–2.5) |
HBsAg: hepatitis B surface antigen; NA: not applicable. #: test for multicollinearity showed that HBsAg carrier status was significantly correlated with chronic liver disease subgroup under coexisting disease group, which was thus excluded from the conditional logistic risk model; ¶: excluding ever-drinkers and HBsAg carriers; +: including ever-drinkers and HBsAg carriers. *: p≤0.05.