Table 1 Characteristics of WIHS and UHS subjects analyzed for this study.
| Â | N in category (% of total) | |
|---|---|---|
Characteristic | WIHS (N = 2248) | UHS (N = 4623) |
HCV seronegative | 1666 (74.1%) | 576 (12.5%) |
HCV seropositive | 582 (25.9%) | 4047 (87.5%) |
Year of HCV test | Â | Â |
1987–1992 | 0 (0.0%) | 572 (12.4%) |
1993 | 29 (1.3%) | 48 (1.0%) |
1994 | 844 (37.5%) | 47 (1.0%) |
1995 | 306 (13.6%) | 57 (1.2%) |
1996 | 2 (0.1%) | 62 (1.3%) |
1997 | 4 (0.2%) | 37 (0.8%) |
1998 | 76 (3.4%) | 862 (18.6%) |
1999 | 15 (0.7%) | 995 (21.5%) |
2000 | 24 (1.1%) | 904 (19.6%) |
2001 | 635 (28.2%) | 907 (19.6%) |
2002 | 313 (13.9%) | 132 (2.9%) |
Age at HCV test | Â | Â |
< 20 | 58 (2.6%) | 67 (1.4%) |
20–29 | 593 (26.4%) | 488 (10.6%) |
30–39 | 1048 (46.6%) | 1200 (26.0%) |
40–49 | 486 (21.6%) | 1925 (41.6%) |
50–59 | 58 (2.6%) | 810 (17.5%) |
60+ | 5 (0.2%) | 133 (2.9%) |
Female | 2248 (100%) | 1409 (30.5%) |
Male | 0 (0%) | 3214 (69.5%) |
Race/Ethnicity | Â | Â |
Caucasian | 275 (12.2%) | 1684 (36.4%) |
African American | 1277 (56.8%) | 2232 (48.3%) |
Hispanic | 615 (27.4%) | 401 (8.7%) |
Other | 81 (3.6%) | 306 (6.6%) |
Area | Â | Â |
San Francisco | 340 (15.1%) | 4623 (100%) |
Bronx | 459 (20.4%) | 0 (0%) |
Brooklyn | 429 (19.1%) | 0 (0%) |
Washington, DC | 320 (14.2%) | 0 (0%) |
Los Angeles | 397 (17.7%) | 0 (0%) |
Chicago | 303 (13.5%) | 0 (0%) |
HIV-infected | 1627 (72.4%) | 787 (17.0%) |
Ever IDU | 522 (23.2%) | 4623 (100%) |
Age of First IDU | Â | Â |
Before 12 | 4 (0.8%) | 123 (2.7%) |
12–15 | 69 (13.2%) | 972 (21.0%) |
16–19 | 163 (31.2%) | 1520 (32.9%) |
20–29 | 227 (43.5%) | 1416 (30.6%) |
30–39 | 56 (10.7%) | 464 (10.0%) |
40+ | 3 (0.6%) | 128 (2.8%) |
Year of First IDU | Â | Â |
Before1960 | 2 (0.4%) | 198 (4.3%) |
1960–1969 | 78 (14.9%) | 1174 (25.4%) |
1970–1979 | 206 (39.5%) | 1473 (31.9%) |
1980–1989 | 173 (33.1%) | 1015 (22.0%) |
1990–1995 | 43 (8.2%) | 459 (9.9%) |
After1995 | 20 (3.8%) | 304 (6.6%) |
Daily IDU | 341 (65.3%) | 2992 (64.7%) |