Multivariate Cox regression analysis of risk factors (significant in univariate analysis and present in >5% of patients) for CAP as an emergency within 72 h
| Characteristics | HR (95% CI) | p Value |
|---|---|---|
| Demographics | ||
| Age | 0.94 | |
| Antibiotics within 4 weeks | 0.19 | |
| Clinical findings at presentation | ||
| Focal chest signs | 2.12 (1.14 to 3.94) | 0.017 |
| Comorbidities | ||
| Home oxygen therapy | 2.86 (1.89 to 4.32) | <0.001 |
| Extrapulmonary comorbidity | 0.77 | |
| Congestive heart failure | 0.54 | |
| Chronic renal disease | 0.12 | |
| Vital signs | ||
| Systolic blood pressure | 0.38 | |
| Diastolic blood pressure | 0.97 (0.96 to 0.98) | <0.001 |
| Respiratory rate | 1.05 (1.03 to 1.08) | <0.001 |
| Heart rate | 1.02 (1.01 to 1.03) | <0.001 |
| Temperature | 0.71 (0.60 to 0.83) | <0.001 |
| Multilobar infiltrate | 1.91 (1.35 to 2.70) | <0.001 |
| Altered mental status | 2.54 (1.61 to 4.02) | <0.001 |
Significant results are shown in bold.
CAP, community-acquired pneumonia.