| All patients | Survivors | Nonsurvivors | |
| Subjects n | 58 | 52 | 6 |
| Males | 30 (52) | 29 (56) | 1 (17) |
| Age yrs | 72 (20–93) | 71 (20–88) | 79 (43–93) |
| Comorbidities | 43 (74) | 37 (71) | 6 (100) |
| COPD | 5 (9) | 4 (8) | 1 (17) |
| Smoking history | 21 (36) | 20 (38) | 1 (17) |
| Antibiotic pre-treatment | 12 (21) | 10 (19) | 2 (33) |
| Pathogen established | 21 (36) | 20 (38) | 1 (17) |
| Bacteraemia | 6 (10) | 6 (12) | 0 (0) |
| Length of hospital stay days | 8 (2–72) | 8 (2–72) | 2.5 (2–6)* |
| Clinical stability on day 4 | 31 (53) | 31 (60) | 0 (0)* |
| CRB-65 score | 1.5 (0–4) | 1 (0–4) | 2 (1–4) |
| CRB-65 score class | |||
| 0 | 13 (22) | 13 (100) | 0 (0) |
| 1 | 16 (28) | 15 (94) | 1 (6) |
| 2 | 18 (31) | 14 (78) | 4 (22) |
| 3 | 8 (14) | 8 (100) | 0 (0) |
| 4 | 3 (5) | 2 (67) | 1 (33) |
| PSI score | 107 (12–233) | 103 (12–184) | 143 (134–233)* |
| PSI score class | |||
| 1 | 12 (21) | 12 (100) | 0 (0) |
| 2 | 3 (5) | 3 (100) | 0 (0) |
| 3 | 4 (7) | 4 (100) | 0 (0) |
| 4 | 20 (34) | 20 (100) | 0 (0) |
| 5 | 19 (33) | 13 (68) | 6 (32) |
| CIRCI | 6 (10) | 5 (10) | 1 (17) |
Data are presented as n (%) or median (range), unless otherwise stated. COPD: chronic obstructive pulmonary disease; CRB-65: confusion, respiratory rate ≥30 breaths·min−1, low blood pressure (systolic value <90 mmHg or diastolic value ≤60 mmHg) and age ≥65 yrs; PSI: pneumonia severity index; CIRCI: critical illness-related corticosteroid insufficiency. *: p<0.05 for nonsurvivors versus survivors.