Table 1.
Baseline characteristics of the sample in the derivation cohort
| Characteristic | Matched cases (N = 52,921) | Matched controls (N = 52,921) |
|---|---|---|
| Sex, n (%) of male | 24,795 (46.7) | 24,795 (46.7) |
| Age, mean ± SD in years | 66.0 ± 24 | 66.0 ± 24 |
| Charlson index, mean ± SD | 1.7 ± 2.1 | 1.7 ± 2.1 |
| Infection as principal diagnosis, n (%) | 23,302 (44.0) | 23,302 (44.0) |
| Hospital status, n (%) of public | 43,411 (82.0) | 43,411 (82.0) |
| Location of infection, n (%) | ||
| Urinary and gynecological tract | 29,414 (55.6) | 29,414 (55.6) |
| Material infection | 6853 (12.9) | 6853 (12.9) |
| Skin and soft tissue | 4135 (7.8) | 4135 (7.8) |
| Lower respiratory tract | 3866 (7.3) | 3866 (7.3) |
| Bacteremia and sepsis (alone) | 3057 (5.8) | 3057 (5.8) |
| Gastrointestinal and abdominal | 2484 (4.7) | 2484 (4.7) |
| Bone and joint | 1327 (2.5) | 1327 (2.5) |
| During pregnancy (mother) | 681 (1.3) | 681 (1.3) |
| Infection in newborn | 423 (0.8) | 423 (0.8) |
| Heart and mediastinum | 412 (0.8) | 412 (0.8) |
| Ear, nose and throat | 159 (0.3) | 159 (0.3) |
| Eye | 72 (0.1) | 72 (0.1) |
| Nervous system | 38 (0.1) | 38 (0.1) |