Multivariate analysis of survival
| HR | 95% CI | p Value | |
|---|---|---|---|
| Age (years) | 1.0340 | 0.9847 to 1.0860 | 0.18 |
| Male sex | 2.4510 | 0.9260 to 6.4890 | 0.071 |
| PCT (ng/mL) | 2.7110 | 1.1770 to 6.2450 | 0.022 |
| Pao2:Fio2 ratio on admission | 0.9941 | 0.98232 to 1.0050 | 0.41 |
| Extent of honeycombing (%) | 1.0210 | 0.9881 to 1.0550 | 0.22 |
| CLE (±) | 0.0606 | 0.0161 to 0.2290 | 3.6×10−5 |
| SIRS (±) | 6.2810 | 1.4220 to 27.7500 | 0.015 |
Cox proportional hazards regression models were used for the statistical analysis.
CLE, centrilobular emphysema; PCT, procalcitonin; SIRS, systemic inflammatory response syndrome.