Table 1.
Patient Characteristics
| Characteristic | Adults Hospitalized With CAP and PCT Results (N = 1,770) |
|---|---|
| Age, median (IQR), y | 57 (47-70) |
| Female sex, No. (%) | 905 (51.1) |
| Race and ethnicity, No. (%) | |
| Non-Hispanic white | 783 (44.2) |
| Non-Hispanic black | 693 (39.2) |
| Hispanic | 215 (12.2) |
| Other | 79 (4.5) |
| Age groups, No. (%) | |
| 18-44 y | 396 (22.4) |
| 45-64 y | 766 (43.3) |
| 65-79 y | 373 (21.1) |
| ≥ 80 y | 235 (13.3) |
| Chronic medical conditions, No. (%) | |
| Asthma | 459 (25.9) |
| Chronic obstructive lung disease | 367 (20.7) |
| Cancer | 320 (18.1) |
| Chronic heart failure | 318 (18.0) |
| Diabetes mellitus | 438 (24.8) |
| Chronic kidney disease | 271 (15.3) |
| Chronic liver disease | 93 (5.3) |
| Immunosuppression | 294 (16.6) |
| HIV infection | 47 (2.7) |
| Current smoker | 463 (26.2) |
| PSI risk class | |
| I | 339 (19.2) |
| II | 474 (26.8) |
| III | 345 (19.5) |
| IV | 462 (26.1) |
| V | 150 (8.5) |
| Cause of pneumonia, No. (%) | |
| Bacterial | 192 (10.9) |
| Viral | 412 (23.3) |
| Bacterial-viral mixed | 51 (2.9) |
| Fungal/mycobacterial | 15 (0.9) |
| Unknown | 1,100 (62.2) |
| Antibiotic administration before hospital presentation | 325 (18.4) |
| IRVS within 72 h, No. (%) | 115 (6.5) |
| ICU admission as initial disposition, No. (%) | 280 (15.8) |
| Delayed ICU transfer from medical floor,a No. (%) | 117 (6.6) |
| Hospital length of stay, median (IQR), d | 3 (2-6) |
| In-hospital death, No. (%) | 37 (2.1) |
CAP = community-acquired pneumonia; IQR = interquartile range; IRVS = invasive respiratory or vasopressor support; PCT = procalcitonin; PSI = pneumonia severity index.
a
Delayed ICU transfer from medical floor was defined as initial hospital admission on the medical floor and then later transfer to an ICU at any time during the index hospitalization for pneumonia.