Table 1. Study Participant Demographic Characteristics.
| Characteristica | No. (%) |
|---|---|
| No. | 18 |
| Age, median (IQR), y | 33 (28.3-42.8) |
| Sex | |
| Men | 9 (50) |
| Women | 9 (50) |
| Raceb | |
| Black or African American | 11 (61) |
| White | 7 (39) |
| Hispanic or Latino ethnicityb | 3 (17) |
| Body weight, median (IQR), kg | 76.9 (62.6-83.7) |
| State (area of residence) | |
| Wisconsin (Milwaukee area) | 7 (39) |
| Illinois (Chicago area) | 5 (28) |
| Michigan (Detroit area) | 3 (17) |
| Other US states | 3 (17) |
Abbreviation: IQR, interquartile range.
Based on study screening requirements, all participants were between 18 and 50 years; none smoked; all had unremarkable medical histories, screening laboratory values, vital signs, and electrocardiograms; all tested negative for alcohol and drugs of abuse; none used recent prescription, nonprescription, or alternative medications other than contraceptives or acetaminophen; none had a history of Helicobacter pylori infection or ulcerative disease; none were pregnant; and none had signs, symptoms, or diagnostic testing results suggestive of COVID-19. Full inclusion and exclusion criteria are reported in Supplement 1.
Self-identified race and ethnicity were collected in an open-ended format by clinical staff.