Table 1.
Clinical and Demographic Characteristics of the Study Cohort
| Total | Pneumonia-Positive | Pneumonia-Negative | |
|---|---|---|---|
| Total enrolled, n | 25 | 18 | 7 |
| Age, yr, mean | 57 | 56 | 57 |
| Sex, F | 8 (32%) | 6 (33%) | 2 (29%) |
| African American | 3 (12%) | 3 (17%) | 1 (14%) |
| Asian | 2 (8%) | 2 (11%) | 1 (14%) |
| Caucasian | 12 (48%) | 12 (67%) | 4 (57%) |
| Other race | 4 (8%) | 1 (6%) | 1 (14%) |
| Hispanic ethnicity | 1 (4%) | 1 (6%) | 0 (0%) |
| CAP | 9 (36%) | 9 (50%) | — |
| HAP/VAP | 9 (36%) | 9 (50%) | — |
| Subsequent VAP | 2 (8%) | 2 (11%) | — |
| Immunosuppression* | 11 (44%) | 6 (33%) | 5 (83%) |
| Prior antibiotic use | 13 (83%) | 13 (72%) | 7 (100%) |
| Bacteremia/viremia | 4 (16%) | 4 (22%) | 0 (0%) |
| Mortality, 30 d | 5 (20%) | 5 (28%) | 0 (0%) |
Definition of abbreviations: CAP = community-acquired pneumonia; HAP = hospital-acquired pneumonia; VAP = ventilator-associated pneumonia.
Data are shown as n (%) unless otherwise indicated.
*
Includes history of solid organ transplant, hematopoietic stem cell transplant, or treatment with a biologic immune-modulating agent, corticosteroid, or cancer chemotherapy.