TABLE 2—
CDC Indications Among HCV Cases by Birth Cohort From 4 Hepatitis Surveillance Sites: Colorado, Connecticut, Minnesota, and New York, 2004–2010
| Variable | Totala (n = 29 544), No. (%) | Born Before 1945 (n = 2283), No. (%) | Born From 1945 to 1965 (n = 19 074), No. (%) | Born After 1965 (n = 8172), No. (%) |
| Injection drug use | 18 352 (62) | 477 (21) | 11 350 (60) | 6516 (80) |
| Elevated liver enzyme(s) | 11 616 (39) | 1238 (54) | 8255 (43) | 2119 (26) |
| Receipt of blood or blood products before 1992 | 3793 (13) | 851 (37) | 2508 (13) | 432 (5) |
| Hemodialysis | 630 (2) | 149 (7) | 425 (2) | 55 (1) |
| Transplant history before 1992 | 148 (1) | 20 (1) | 95 (< 1) | 33 (< 1) |
| Mother-to-child transmission | 6 (< 1) | 0 (0) | 0 (0) | 6 (< 1) |
| Health care exposure | 136 (< 1) | 17 (1) | 84 (< 1) | 35 (< 1) |
| > 1 CDC risk indicator | 4889 (17) | 455 (20) | 3438 (18) | 995 (12) |
Note. CDC = Centers for Disease Control and Prevention. The variables were obtained from Centers for Disease Control and Prevention.7
a
Birth year data missing for 15 cases. Indications may add up to greater than 100% because more than 1 risk indication may be specified.