| Characteristics | Survivors# | Nonsurvivors¶ | p-value | All cases+ |
| Sex | ||||
| Female | 126 (25.4) | 19 (43.2) | 0.02 | 145 (26.9) |
| Male | 370 (74.6) | 25 (56.8) | 395 (73.1) | |
| Age yrs | 59 (17–95) | 76 (28–100) | <0.001 | 60 (17–100) |
| Weight kg | 76 (40–136) | 72 (45–150) | 0.17 | 76 (40–150) |
| Height cm | 172 (146–197) | 165 (150–185) | 0.008 | 171 (146–197) |
| Body mass index kg·m−2 | 26 (16–47) | 26 (18–59) | 0.70 | 26 (16–59) |
| Time between hospitalisation and onset of illness days | 4 (0–33) | 3 (0–14) | 0.10 | 4 (0–33) |
| PSI class | ||||
| II–III | 170 (34.3) | 4 (9.1) | 174 (32.2) | |
| IV–V | 173 (34.9) | 29 (65.9) | <0.001 | 202 (37.4) |
| Risk factors§ | ||||
| Smoking | 277 (55.8) | 12 (27.3) | <0.001 | 289 (53.5) |
| Alcohol intakeƒ | 94 (19.0) | 7 (15.9) | 0.84 | 101 (18.7) |
| Diabetes | 77 (15.5) | 8 (18.2) | 0.67 | 85 (15.7) |
| Cancer/malignancy | 29 (5.8) | 5 (11.4) | 0.18 | 34 (6.3) |
| Corticosteroid therapy | 25 (5.0) | 6 (13.6) | 0.03 | 31 (5.7) |
| Other immunosuppressive medication | 14 (2.8) | 4 (9.1) | 0.05 | 18 (3.3) |
| ≥1 risk factor | 371 (74.8) | 30 (68.2) | 0.37 | 401 (74.3) |
Data are expressed as n (%) or median (range), unless otherwise stated. PSI: Pneumonia Severity Index. #: n=496; ¶: n=44; +: n=540; §: not mutually exclusive; ƒ: 30 or 20 g alcohol daily for males and females, respectively, for ≥1 yr.