TABLE 2.
Biological, microbiological and radiological characteristics at baseline, and treatment and outcome of the 200 patients included in the PneumOLD-CT study
| Characteristics# | n (%) | Median (IQR) |
| Biological | ||
| White blood cell count 103 per mm3 (on admission) | 11.0 (8.2–14.0) | |
| proBNP ng·L−1 (range <300 ng·L−1) (N=170) | 1836 (667–3801) | |
| CRP mg·L−1 (range 0–10 mg·L−1) | 84.0 (45.8–159.6) | |
| PCT µg·L−1 (range <0.25 µg·L−1) (N=185) | 0.33 (0.13–1.30) | |
| Urea mmol·L−1 | 7.9 (6.0–11.9) | |
| Creatinine µmol·L−1 | 97.0 (77.0–133.0) | |
| Albumin g·L−1 (N=193) | 35.0 (32.0–38.0) | |
| Prealbumin mg·L−1 (N=193) | 122.0 (95.0–162.0) | |
| Microbiological | ||
| Positive culture | ||
| Blood (N=192) | 11 (5.7) | |
| Urinary (N=177) | 82 (46.3) | |
| Sputum (N=81) | 36 (44.4) | |
| Pleural effusion (N=6) | 0 | |
| Positive urinary antigen | ||
| Legionella (N=183) | 0 | |
| Pneumococcal (N=178) | 8 (4.5) | |
| Positive serology (IgM) | ||
| Legionella pneumophila | 2 (1) | |
| Chlamydophila pneumoniae | 4 (2) | |
| Mycoplasma pneumoniae | 3 (1.5) | |
| Radiological | ||
| Chest radiography | ||
| Standing | 66 (33) | |
| Two incidences | 63 (31.5) | |
| Delay of LDCT chest scan h | 2.2 (0.9–15.4) | |
| Radiologist's opinion on quality (good/satisfactory) | 127 (63.5) | |
| Radiologist's estimate of pneumonia probability | ||
| High | 103 (51.5) | |
| Intermediate | 23 (11.5) | |
| Low | 74 (37.0) | |
| Treatment | ||
| Duration of AT days | 7 (6–9) | |
| Outcome | ||
| Transfer to intermediate care unit or ICU | 13 (7.0) | |
| 30-day mortality | 11 (5.4) | |
| 90-day mortality | 30 (15.0) |
IQR: interquartile range; proBNP: pro-brain natriuretic peptide; CRP: C-reactive protein; PCT: procalcitonin; IgM: immunoglobulin M; LDCT: low-dose computed tomography; AT: antimicrobial therapy; ICU: intensive care unit. #: the number of patients (N) is 200 unless otherwise stated.