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Demographic characteristics of the study participants
| Characteristic | HCV (n = 145) | Control (n = 198) |
| Age (yr), mean ± SD | 55.5 ± 10.0 | 32.2 ± 10.0 |
| Sex, M/F | 52%/48% | 66%/34% |
| Skin color | ||
| White | 75.70% | 88.00% |
| Black | 19.20% | 5.00% |
| Brown | 5.10% | 7.00% |
HCV: Hepatitis C virus.
