Table 1.
Baseline Characteristics by Risk Group
| Characteristic | High Risk (n = 77) |
Standard Risk (n = 81) |
Overall (n = 158) |
|---|---|---|---|
| Age, y, median (IQR) | 55 (46–62) | 38 (29–47) | 47 (34–55) |
| Sex, n (%) | |||
| Female | 33 (43) | 46 (57) | 79 (50) |
| Male | 44 (57) | 35 (43) | 79 (50) |
| Gender identity, cis-gender, n (%) | 77 (100) | 81 (100) | 158 (100) |
| Race, n (%) | |||
| White | 60 (79) | 69 (85) | 129 (82) |
| Black | 8 (11) | 4 (5) | 12 (8) |
| Asian | 5 (7) | 4 (5) | 9 (6) |
| Other | 3 (4) | 4 (5) | 7 (4) |
| Missing | 1 | 0 | 1 |
| Ethnicity, n (%) | |||
| Hispanic/Latino | 19 (25) | 29 (36) | 48 (31) |
| Not Hispanic/Latino | 56 (75) | 51 (64) | 107 (69) |
| Missing | 2 | 1 | 3 |
| High-risk characteristic, n (%) | |||
| Age 55 y or older | 42 (55) | … | … |
| Chronic lung disease | 4 (5) | … | … |
| Moderate to severe asthma | 6 (8) | … | … |
| Body mass index >35 kg/m2 | 19 (25) | … | … |
| Hypertension | 44 (57) | … | … |
| Cardiovascular disease, including history of stroke | 12 (16) | … | … |
| Diabetes | 15 (19) | … | … |
| Chronic kidney disease | 3 (4) | … | … |
| Chronic liver disease | 3 (4) | … | … |
| Days from symptom onset at study entry, median (IQR) | 6 (5–7) | 6 (4–7) | 6 (4–7) |
| ≤5 d, n (%) | 30 (39) | 36 (44) | 66 (42) |
| >5 d, n (%) | 47 (61) | 45 (56) | 92 (58) |
Abbreviation: IQR, interquartile range.