Table 4.
Comparison of outcomes by multiple logistic regression analysis and inverse probability of treatment weightinga
| Outcome | Model | Adjusted HR (95% CI) | P value |
|---|---|---|---|
| Length of hospital stay after viral infection | Unadjusted model | 2.15 (1.36–3.41) | 0.001 |
| PS-matched analysis | 1.32 (0.68–2.56) | 0.42 | |
| IPTW | 1.50 (0.94–2.40) | 0.09 | |
| Overall mortality | Unadjusted model | 1.85 (0.70–4.90) | 0.22 |
| PS-matched analysis | 1.33 (0.31–5.79) | 0.71 | |
| IPTW | 1.94 (0.65–5.78) | 0.24 |
a
HR, hazard ratio (oral ribavirin therapy was compared with no therapy [reference]); CI, confidence interval; PS, propensity score; IPTW, inverse probability of treatment weighting method.