Factors significantly associated with mortality on multivariate analysis
| Clinical feature | Odds ratio | 95% Confidence interval | p value |
|---|---|---|---|
| Age >65 years | 6.60 | 2.47 to 17.64 | <0.001 |
| Confusion | 4.20 | 1.77 to 9.94 | 0.001 |
| Temperature <37°C | 2.74 | 1.26 to 5.95 | 0.01 |
| RR >24 breaths/min | 3.65 | 1.69 to 7.88 | 0.01 |
| Sodium <135 mmol/l | 3.09 | 1.29 to 7.39 | 0.01 |
| Urea >7 mmol/l | 3.12 | 1.33 to 7.29 | <0.01 |
| Effusion on chest radiograph | 6.23 | 1.25 to 30.98 | 0.03 |
RR = respiratory rate.