Table 1 Baseline characteristics of the study population
Characteristic | Hospital survivors | Hospital non-survivors | P value |
|---|---|---|---|
N = 862 | N = 139 | ||
Age, years | 73.2 ± 15.2 | 77.2 ± 14.7 | 0.003 |
Male sex | 520 (60) | 78 (56) | 0.348 |
CURB-65 score | 1.6 ± 1.0 | 2.1 ± 1.0 | < 0.001 |
0 | 133 (15) | 11 (7.9) | < 0.001 |
1 | 259 (30) | 27 (19) | |
2 | 322 (37) | 51 (37) | |
3 | 138 (16) | 40 (29) | |
4 | 10 (1.2) | 10 (7.2) | |
Comorbidity | |||
Diabetes mellitus | 249 (29) | 31 (22) | 0.109 |
Malignancy | 148 (17) | 39 (28) | 0.002 |
COPD | 105 (12) | 13 (9.4) | 0.337 |
Coronary artery disease | 99 (12) | 16 (12) | 0.993 |
Heart failure | 84 (9.7) | 15 (11) | 0.701 |
Chronic kidney disease | 56 (6.5) | 10 (7.2) | 0.758 |
Laboratory testing | |||
White blood cells, K/μL | 11.0 ± 6.1 | 13.0 ± 8.2 | 0.006 |
Neutrophil-to-lymphocyte ratio | 10.3 ± 10.6 | 15.6 ± 12.8 | < 0.001 |
Albumin, g/dL | 3.4 ± 0.3 | 3.2 ± 0.5 | < 0.001 |
C-reactive protein, mg/dL | 7.4 ± 4.8 | 8.6 ± 5.2 | 0.017 |
Events in the first 3 hospital days | |||
Septic shock | 6 (0.7) | 17 (12) | < 0.001 |
ARDS | 6 (0.7) | 1 (0.7) | 0.999 |
Length of stay, days | 8 (6–12) | 8 (3–14) | 0.025 |