Baseline demographics and clinical characteristics (% and median value (IQR))
| Total (n=2088) | Non-survivors (n=321) | Survivors (n=1767) | P value | Univariable analysis | ||
| OR (95% CI) | P value | |||||
| Demographics characteristics | ||||||
| Age (years) | 69 (57–80) | 83 (75–89) | 66 (55–77) | <0.0001 | 1.09 (1.08 to 1.11)* | <0.0001 |
| Male (%) | 59.6% | 66.4% | 58.4% | 0.0091 | 1.40 (1.10 to 1.81) | 0.0078 |
| Comorbidities | ||||||
| HT | 36.1% | 45.5% | 34.4% | 0.00018 | 1.59 (1.25 to 2.02) | 0.0002 |
| DM | 17.8% | 23.7% | 16.7% | 0.0034 | 1.55 (1.16 to 2.05) | 0.0028 |
| COPD | 5.6% | 10% | 4.8% | 0.00036 | 2.19 (1.41 to 3.32) | 0.0003 |
| CD | 11.1% | 20.9% | 9.3% | <0.0001 | 2.58 (1.88 to 3.51) | <0.0001 |
| Clinical characteristics | ||||||
| Temperature >38°C (%) | 6.8% | 7.2% | 6.8% | 0.92 | NA | NA |
| Heart rate (bpm) | 89 (78–101) | 87 (78–102) | 89 (78–101) | 0.86 | NA | NA |
| BP max (mm Hg) | 131 (117–146) | 131 (114–146) | 131 (118–146) | 0.35 | NA | NA |
| BP min (mm Hg) | 76 (67–84) | 72 (62–80) | 76 (68–85) | <0.0001 | 0.98 (0.97 to 0.99)* | <0.0001 |
| SatO2 (%) >94% | 51.9% | 30.8% | 55.7% | <0.0001 | NA | NA |
| SatO2 (%) 90%–94% | 20.6% | 16.8% | 21.3% | <0.0001 | 1.43 (1.00 to 2.02) | 0.048 |
| SatO2 (%) <90% | 14.9% | 37.4% | 10.9% | <0.0001 | 6.21 (4.57 to 8.47) | <0.0001 |
*The variable is continuous, the OR is for each increment in a unit. Non-survivors versus survivors.
BP, blood pressure; CD, cardiovascular disease; COPD, chronic obstructive pulmonary disease; DM, diabetes mellitus; HT, hypertension; NA, not available; SatO2, oxygen saturation.