Table 1.
Demographics of Study Participants (N = 727)
| Gender | |
| Male | 388 (53.4%) |
| Female | 337 (46.4%) |
| Unknown | 2 (0.2%) |
| Race or ethnicity | |
| White | 449 (61.8%) |
| African American | 140 (19.3%) |
| Hispanic/Latino | 70 (9.5%) |
| Asian | 20 (2.8%) |
| Multiple Races | 20 (2.8%) |
| Other | 25 (3.4%) |
| Unknown | 3 (0.4%) |
| Mean Age (SD) | 50.1 ± 16.3 |
| Study Site | |
| NIHCC | 198 (27.2%) |
| RIH | 178 (24.5%) |
| WRNMMC | 176 (24.2%) |
| JPS | 175 (24.1%) |
JPS = John Peter Smith Health Network; NIH CC = National Institutes of Health Clinical Center; RIH = Rhode Island Hospital; SD = standard deviation; WRNMMC = Walter Reed National Military Medical Center.