Table 2.
Hazard Ratios for All-cause Mortality at 28 Days (Cox Regression Analysis)
| Variable | Univariate | Multivariate | ||||
|---|---|---|---|---|---|---|
| HR | (95% CI) | P Value | HR | (95% CI) | P Value | |
| PCR positive | 9.9 | (2.8–34) | <.001 | 8.6 | (2.4–30) | .001 |
| Age, y | 1.1 | (1.1–1.2) | <.001 | 1.2 | (1.1–1.2) | <.001 |
| Male sex | 0.8 | (.3–2.1) | .7 | … | … | |
| BMI, kg/m2 | 0.9 | (.8–1.0) | .07 | … | … | |
| Hypertension | 2.6 | (1.0–6.8) | .04 | 1.1 | (.4–2.9) | .9 |
| Diabetes | 2.0 | (.8–5.0) | .17 | … | … | |
| Cardiovascular disease | 3.6 | (1.4–9.1) | .007 | 0.7 | (.2–2) | .5 |
| Pulmonary disease | 1.9 | (.3–3.3) | .9 | … | … | |
| CRP, mg/L | 1.0 | (1.0–1.0) | 1.0 | … | … | |
| Lymphocyte count, × 109/L | 0.4 | (.1–1.3) | .11 | … | … |
Data on age, sex, PCR status, and comorbidities were available for all patients; CRP, BMI, and lymphocyte count were available for 165, 157, and 142 subjects, respectively.
Abbreviations: BMI, body mass index; CI, confidence interval; CRP, C-reactive protein; HR, hazard ratio; PCR, polymerase chain reaction.