Results of multivariate analysis to predict treatment failure (n = 939)
| Any failure OR(95% CI) | Early failure OR(95% CI) | Late failure OR(95% CI) | |
|---|---|---|---|
| COPD, chronic obstructive pulmonary disease; OR, odds ratio. | |||
| Area under ROC curve for any, early, and late failure: 0.72, 0.73 and 0.68, respectively. | |||
| Influenza vaccination | 0.3 (0.2 to 0.6) | 0.2 (0.1 to 0.4) | |
| COPD | 0.6 (0.4 to 0.9) | ||
| Liver disease | 2 (1.1 to 3.5) | 2.4 (1.1 to 5) | |
| Pleural effusion | 2.7 (1.8 to 4.2) | 2.6 (1.6 to 4.3) | 2.6 (1.5 to 4.6) |
| Multilobar CAP | 2.1 (1.4 to 2.9) | 2.2 (1.4 to 3.2) | 1.7 (1.1 to 2.9) |
| Cavitation | 4.1 (1.3 to 13.5) | 5.2 (1.4 to 18.2) | |
| Fluoroquinolone treatment | 0.5 (0.3 to 0.9) | ||
| Fine risk class | 1.3 (1.1 to 1.5) | 1.2 (1.1 to 1.5) | 1.4 (1.1 to 1.8) |
| Leucopenia | 3.7 (1.4 to 10.2) | 5.9 (2.2 to 15.3) | |
| Hyponatraemia | 1.6 (1.1 to 2.4) | ||