Age (yr), median (range) | 52 (21–86) |
Male | 38 (50%) |
Body mass index (kg/m2), mean ± SD | 21.8 ± 3.0* |
Smoking history | |
Current smoker | 12/74 (16%) |
Ex-smoker | 3/74 (4%) |
Median pack-years (range) | 30 (3–50) |
Body temperature > 37.8°C | 21/61 (34%) |
Leukocytosis (>10,000/mm3) | 11/72 (15%) |
C-reactive protein (mg/dL), mean ± SD | 4.9 ± 5.6† |
Previous or current malignancy | 18 (24%) |
Solid organ cancer | 12 |
Hematologic malignancy | 6 |
History of previous TB | 5 (7%) |
Comorbidities | |
Diabetes mellitus | 2 (3%) |
HIV infection | 7 (9%) |
Corticosteroid use‡ | 9 (12%) |
Connective tissue disease | 6 (8%) |
Solid organ transplantation | 2 (3%) |
Chronic kidney disease§ | 2 (3%) |