Table 1 Characteristics of the study sample
Variable | Total (n = 197) | Patients who died in hospital within 30 days of diagnosis (n = 36) | Patients discharged or alive at Day 30a (n = 161) | P-valueb |
|---|---|---|---|---|
Age, mean ± SD | 89.6 ± 5.7 | 90.9 ± 6.7 | 89.4 ± 5.4 | 0.204 |
Age in terciles, n (%) | Â | Â | Â | 0.116 |
 62 to 86 years old | 66 (33.5) | 7 (19.4) | 59 (36.7) |  |
 87 to 92 years old | 74 (37.6) | 15 (41.7) | 59 (36.7) |  |
 93 to 104 years old | 57 (28.9) | 14 (38.9) | 43 (26.7) |  |
Sex, n (%) | Â | Â | Â | 0.441 |
 Women | 99 (50.3) | 16 (44.4) | 83 (51.6) |  |
 Men | 98 (49.8) | 20 (55.6) | 78 (48.5) |  |
Charlson, mean ± SD | 2.9 ± 2.2 | 3.3 ± 2.6 | 2.8 ± 2.2 | 0.330 |
Length of stay, mean ± SD Malnutrition, n (%) | 11.4 +/− 7.2 | 8.3 +/−  5.2 | 12.1 +/−  7.4 | < 0.001 0.145 |
 No | 36 (18.3) | 4 (11.1) | 32 (19.9) |  |
 Moderate | 70 (35.5) | 10 (27.8) | 60 (37.3) |  |
 Severe | 91 (46.2) | 22 (61.1) | 69 (42.9) |  |
Bedsore, n (%) | 21 (10.8) | 6 (17.7) | 15 (9.3) | 0.218 |
Type of infection, n (%) | Â | Â | Â | 0.036 |
 Pulmonary | 112 (56.9) | 26 (72.2) | 86 (53.4) |  |
 Urinary | 43 (31.8) | 2 (5.6) | 41 (25.5) |  |
 Bacteraemia | 27 (13.7) | 5 (13.9) | 22 (13.7) |  |
 Other or combined | 15 (7.6) | 3 (8.3) | 12 (7.5) |  |
Initiation of antibiotics, n (%) | Â | Â | Â | 0.241 |
 Within 24 h | 111 (56.4) | 25 (69.4) | 86 (53.4) |  |
 Between 24 and 48 h | 60 (30.5) | 8 (22.2) | 52 (32.3) |  |
 After 48 h | 26 (13.2) | 3 (8.3) | 23 (14.3) |  |
Sepsis, n (%) | 30 (15.2) | 6 (16.7) | 24 (14.9) | 0.799 |
Stay in the ICU, n (%) | 13 (6.6) | 2 (5.6) | 11 (6.8) | 1.000 |
GFR, n (%) |  |  |  | < 0.001 |
 ≥ 60 ml/min | 126 (64.0) | 16 (44.4) | 110 (68.3) |  |
 ≥ 30 and < 60 ml/min | 48 (24.4) | 9 (25.0) | 39 (24.2) |  |
 < 30 ml/min | 23 (11.7) | 11 (30.6) | 12 (7.5) |  |