| Total | Mortality | Unadjusted HRa (95% CI) | P-value |
---|---|---|---|---|
n = 3663 | n = 972 (26.5) 95% CI (25.1–28.0%) | |||
n (column%) | n (column%) | |||
Age: median (IQR) | 58 (41–68) | 66 (55–75) |  |  < 0.001 |
  < 15 | 165 (4.5) | 32 (3.3) | Ref |  |
 15–34 | 498 (13.6) | 61 (6.3) | 0.72 (0.47–1.10) | 0.125 |
 35–54 | 912 (24.9) | 141 (14.5) | 0.82 (0.56–1.21) | 0.322 |
 55–74 | 1618 (44.2) | 490 (50.4) | 1.55 (1.08–2.22) | 0.016 |
  ≥ 75 | 470 (12.8) | 248 (25.5) | 2.91 (2.03–4.21) |  < 0.001 |
Gender | ||||
 Female | 1698 (46.4) | 438 (45.1) | Ref |  |
 Male | 1965 (53.6) | 534 (54.9) | 1.05 (0.93–1.19) | 0.440 |
Tobacco use | ||||
Never | 3419 (93.3) | 877 (90.2) | Ref | Â |
 Former | 74 (2.0) | 28 (2.9) | 1.29 (0.88–1.88) | 0.194 |
 Current | 170 (4.6) | 67 (6.9) | 1.70 (1.32–2.18) |  < 0.001 |
Condition on admission | ||||
 Asymptomatic/Mild | 368 (10.0) | 29 (3.0) | Ref |  |
 Moderate | 911 (24.9) | 97 (10.0) | 1.64 (1.08–2.48) | 0.020 |
 Severe | 1447 (39.5) | 238 (24.5) | 2.48 (1.69–3.65) |  < 0.001 |
 Critical | 937 (25.6) | 608 (62.6) | 10.14 (6.99–14.72) |  < 0.001 |
Comorbidities | ||||
 No | 2014 (55.0) | 384 (39.5) | Ref |  |
 Yes | 1649 (45.0) | 588 (60.5) | 1.79 (1.57–2.03) |  < 0.001 |
Patients presented in complications | ||||
 No | 3481 (95.0) | 858 (88.3) | Ref |  |
 Yes | 182 (5.0) | 114 (11.7) | 2.73 (2.24–3.31) |  < 0.001 |
Hospital stay: median (IQR) | 8 (4–12) | 7 (4–12) |  | 0.010 |
  > 1Day | 3433 (93.7) | 863 (88.8) | Ref |  |
  ≤ 1Day | 230 (6.3) | 109 (11.2) | 2.68 (2.05–3.51) |  < 0.001 |