Table 1.
Descriptive epidemiology and bivariate analysis
| Descriptive epidemiology |
Bivariate analysisa |
|||
|---|---|---|---|---|
| overall (405) | antibacterials (175) | no antibacterials (230) | association with antibacterial therapy, P value | |
| Age, years, mean (SD) | 60.1 (16.8) | 58.2 (17.5) | 61.6 (16.1) | 0.042 |
| WBC count, 1000 cells/µL, mean (SD) | 11.5 (7.2) | 13.2 (9.2) | 10.2 (4.7) | <0.0001 |
| Procalcitonin, positiveb, n (%) | 159 (39) | 96 (55) | 63 (27) | <0.0001 |
| Gender, male, n (%) | 223 (55) | 102 (58) | 121 (53) | 0.255 |
| SARS-CoV-2 positive, n (%) | 296 (73) | 105 (60) | 191 (83) | <0.0001 |
| Bacterial isolate, n (%) | 83 (20) | 47 (27) | 36 (16) | 0.006 |
| Race, n (%) | ||||
| white | 236 (58) | 108 (62) | 128 (56) | 0.599 |
| black | 56 (14) | 21 (12) | 35 (15) | |
| Asian | 9 (2) | 3 (2) | 6 (3) | |
| other | 104 (26) | 43 (25) | 61 (27) | |
Values in bold denote significance at an alpha of 0.05.
a
Bivariate association determined for continuous variables with t-tests and categorical variables with χ2 tests.
b
Positive result indicates a procalcitonin level >0.50 ng/mL.