Multivariate analysis of factors associated with mortality
| Characteristic | Odds ratio (95% CI) | p value |
|---|---|---|
| *Natural log. | ||
| Age (log* years) | 19.76 (1.74 to 224.34) | 0.016 |
| Year of PCP diagnosis(after mid 1996) | 0.14 (0.03 to 0.59) | 0.008 |
| Mechanical ventilation and/or pneumothorax | 5.18 (1.16 to 23.15) | 0.031 |