Table 3.
Characteristics of Healthcare Worker Contacts by Severe Acute Respiratory Syndrome Coronavirus 2 Acquisition Status
| Characteristic | Total (N = 122) | SARS-CoV-2 Negative (n = 110) | SARS-CoV-2 Positive (n = 12) |
|---|---|---|---|
| Daily county incidence per 100 000 residents, median (IQR) | 29.8 (16.1–81.7) | 30.5 (15.4–81.7) | 23.2 (18.5–61.0) |
| Randomization arm | |||
| Ascorbic acid | 59 (48) | 55 (50) | 4 (33) |
| Hydroxychloroquine | 63 (52) | 55 (50) | 8 (67) |
| Age, y, median (IQR) | 37 (31–47) | 37 (30.25–46.75) | 35 (33–50.5) |
| Age group, y | |||
| 18–24 | 10 (8) | 9 (8) | 1 (8) |
| 25–34 | 39 (32) | 34 (31) | 5 (42) |
| 35–44 | 33 (27) | 32 (29) | 1 (8) |
| 45–54 | 27 (22) | 24 (22) | 3 (25) |
| 55–64 | 13 (11) | 11 (10) | 2 (17) |
| 65–80 | 0 (0) | 0 (0) | 0 (0) |
| Sex recorded at birth | |||
| Female | 85 (70) | 76 (69) | 9 (75) |
| Male | 37 (30) | 34 (31) | 3 (25) |
| Race/ethnicity | |||
| White (non-Hispanic) | 82 (67) | 75 (68) | 7 (58) |
| Hispanic | 12 (10) | 10 (9) | 2 (17) |
| Asian | 15 (12) | 12 (11) | 3 (25) |
| Black or African American | 8 (7) | 8 (7) | 0 (0) |
| Other | 5 (4) | 5 (5) | 0 (0) |
| American Indian or Alaska Native | 0 (0) | 0 (0) | 0 (0) |
| Education level | |||
| Never graduated high school | 0 (0) | 0 (0) | 0 (0) |
| High school graduate or GED | 4 (3) | 2 (2) | 2 (17) |
| More than high school | 118 (97) | 108 (98) | 10 (83) |
| Contact smokes | 10 (8) | 8 (7) | 2 (17) |
| No. of suspected indexes | |||
| 1 | 41 (34) | 40 (36) | 1 (8) |
| 2 | 14 (11) | 10 (9) | 4 (33) |
| >2 | 67 (55) | 60 (55) | 7 (58) |
| Hours of exposure to index case | |||
| ≤2 | 57 (47) | 56 (51) | 1 (8) |
| 3–12 | 34 (28) | 29 (26) | 5 (42) |
| >12 | 31 (25) | 25 (23) | 6 (50) |
| Median (range) | 3.5 (1–14.25) | 2 (1–12) | 14 (6–24) |
| Housing type | |||
| House/condo/townhouse | 94 (77) | 84 (76) | 10 (83) |
| Apartment | 22 (18) | 21 (19) | 1 (8) |
| Dormitory/fraternity/sorority | 1 (1) | 0 (0) | 1 (8) |
| Other | 5 (4) | 5 (5) | 0 (0) |
| Bedrooms in household | |||
| 0–1 | 16/121 (13) | 15/109 (14) | 1 (8) |
| 2 | 26/121 (21) | 25/109 (23) | 1 (8) |
| 3 | 45/121 (37) | 40/109 (37) | 5 (42) |
| >3 | 34/121 (28) | 29/109 (27) | 5 (42) |
| Bathrooms in household | |||
| 1 | 36/121 (30) | 34/109 (31) | 2 (17) |
| 2 | 43/121 (36) | 39/109 (36) | 4 (33) |
| >2 | 42/121 (35) | 36/109 (33) | 6 (50) |
Data are presented as No. (%) unless otherwise indicated. Denominator is provided if any missing data.
Abbreviations: GED, General Educational Development; IQR, interquartile range; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.