Table 1.
Patient characteristics
| Mortality rate, % | Survivors No. (%) | Non-survivors No. (%) | P value | |
| Age, years | ||||
| 18–49 | 17.8 | 83 (25.9) | 18 (14.6) | |
| 50–65 | 33.8 | 47 (14.5) | 24 (19.6) | |
| 65–79 | 29.6 | 114 (35.5) | 48 (39.0) | |
| > 80 | 30.0 | 77 (24.0) | 33 (26.8) | 0.077 |
| Sex | ||||
| Female | 29.4 | 199 (58.4) | 64 (52.0) | |
| Male | 24.3 | 142 (41.6) | 59 (48.0) | 0.244 |
| Focus | ||||
| Bacteremia | 35.4 | 62 (20.5) | 34 (27.6) | |
| Pneumonia | 27.1 | 226 (74.8) | 84 (68.3) | |
| Meningitis | 44.4 | 5 (1.7) | 4 (0.8) | |
| Otitis media | 10.0 | 9 (3.0) | 1 (3.3) | 0.153 |
| Comorbidity* | ||||
| No | 23.6 | 133 (43.8) | 41 (33.3) | |
| Yes | 32.4 | 171 (56.2) | 82 (66.7) | 0.047 |
| Alcoholism | ||||
| No | 27.0 | 265 (87.2) | 98 (79.7) | |
| Yes | 39.1 | 39 (12.8) | 25 (20.3) | 0.049 |
| Smoking status | ||||
| Never | 27.1 | 70 (29.8) | 26 (33.3) | |
| Current or former | 24.0 | 165 (70.2) | 52 (66.7) | 0.573 |
| Splenectomy | ||||
| No | 28.6 | 300 (98.7) | 120 (97.6) | |
| Yes | 42.9 | 4 (1.3) | 3 (2.4) | 0.416 |
| Intravenous drug use | ||||
| No | 29.4 | 293 (96.4) | 122 (99.2) | |
| Yes | 8.3 | 11 (3.6) | 1 (0.8) | 0.193 |
| Nursing home residence | ||||
| Yes | 27.6 | 21 (7.7) | 8 (7.1) | |
| No | 27.2 | 279 (92.3) | 104 (92.9) | 0.984 |
| Temperature | ||||
| ≥ 38.5°C | 22.8 | 210 (71.9) | 62 (56.4) | |
| < 38.5°C | 36.9 | 82 (28.1) | 48 (43.6) | 0.003 |
| B-leukocytes | ||||
| > 9 109/L | 24.7 | 216 (81.8) | 71 (65.7) | |
| ≤ 9 109/L | 43.5 | 48 (18.2) | 37 (34.3) | 0.001 |
*: includes patients with chronic lung disease, chronic heart disease, chronic renal disease, chronic liver disease, diabetes mellitus, cancer, autoimmune disease, human immunodeficiency virus (HIV) infection, and 'other chronic diseases'. Patients may have more than one comorbidity.