Association between clinical and demographic features of cohort and death at 30 days
| Demographic feature | Number of individuals (n = 790) (%) | Number of deaths at 30 days (n = 240) (%) | Crude OR (95% CI) | Adjusted OR (95% CI)* | |
| Sex | Female | 394 (49.9) | 111 (46.2) | 1.00 | 1.00 |
| Male | 396 (50.1) | 129 (53.8) | 1.23 (0.91–1.67) | 1.38 (0.96–1.99) | |
| Age category (years) | <70 | 184 (23.3) | 27 (11.3) | 1.00 | 1.00 |
| 70–79 | 182 (23.0) | 58 (24.2) | 2.72 (1.63–4.55) | 2.30 (1.28–4.14) | |
| 80–89 | 305 (38.6) | 113 (47.1) | 3.42 (2,14–5.48) | 3.18 (1.86–5.43) | |
| ≥90 | 119 (15.1) | 42 (17.5) | 3.17 (1.82–5.52) | 3.23 (1.71–6.10) | |
| Admitted from nursing home | No | 734 (92.9) | 218 (90.8) | 1.00 | 1.00 |
| Yes | 56 (7.1) | 22 (9.2) | 1.54 (0.88–2.68) | 1.47 (0.75–2.91) | |
| Charlson Index Score | 0 | 186 (23.5) | 29 (12.1) | 1.00 | 1.00 |
| 1 | 178 (22.5) | 49 (20.4) | 2.06 (1.23–3.44) | 1.94 (1.09–3.44) | |
| 2–3 | 248 (31.4) | 79 (32.9) | 2.53 (1.57–4.08) | 2.15 (1.27–3.66) | |
| ≥4 | 178 (22.5) | 83 (34.6) | 4.73 (2.89–7.74) | 4.34 (2.50–7.53) | |
| Consolidation on CXR | No | 138 (17.5) | 35 (14.6) | 1.00 | 1.00 |
| Yes | 386 (48.9) | 132 (55.0) | 1.53 (0.98–2.37) | 1.48 (0.92–2.39) | |
| Timing of HAP antibiotics | Admission or ≤48 h of admission | 192 (24.3) | 59 (24.6) | 1.00 | 1.00 |
| 2–4 days from admission | 169 (21.4) | 42 (17.5) | 0.75 (0.47–1.19) | 0.81 (0.48–1.39) | |
| ≥5 days from admission | 429 (54.3) | 139 (57.9) | 1.08 (0.75–1.56) | 0.87 (0.57–1.33) | |
| White cell count (quintiles) | ≤7.9 | 191 (24.2) | 47 (20.0) | 1.00 | 1.00 |
| 8.0–10.9 | 189 (23.9) | 53 (22.1) | 1.19 (0.76–1.89) | 1.01 (0.59–1.67) | |
| 11.0–14.6 | 190 (24.1) | 61 (25.4) | 1.45 (0.93–2.27) | 1.20 (0.72–2.02) | |
| ≥14.7 | 190 (24.1) | 69 (28.8) | 1.74 (1.12–2.72) | 1.38 (0.83–2.31) | |
| Missing | 30 (3.8) | - | - | - | |
| C Reactive Protein (quintiles) | ≤45 | 187 (23.7) | 41 (17.1) | 1.00 | 1.00 |
| 46–87 | 186 (23.5) | 60 (25.0) | 1.70 (1.06–2.69) | 1.90 (1.12–3.22) | |
| 88–174 | 187 (23.7) | 73 (30.4) | 2.28 (1.45–3.59) | 2.42 (1.42–4.12) | |
| ≥175 | 185 (23.4) | 55 (22.9) | 1.51 (0.94–2.41) | 1.56 (0.90–2.70) | |
| Missing | 45 (5.7) | - | - | - | |
↵*Odds ratio adjusted for all variables in table.