Table 1.
Baseline Characteristics of Hepatitis C Virus-infected and Hepatitis C Virus-uninfected Veterans
| Characteristic | HCV-infected Cohort (N=146,394) |
HCV-uninfected Cohort (N=572,293) |
||
|---|---|---|---|---|
| Age in years, n (%) | ||||
| < 40 | 5,160 | (3.5) | 20,416 | (3.6) |
| 40–44 | 18,476 | (12.6) | 71,740 | (12.5) |
| 45–49 | 41,161 | (28.1) | 157,787 | (27.6) |
| 50–54 | 45,243 | (30.9) | 177,085 | (30.9) |
| 55–59 | 18,213 | (12.4) | 72,750 | (12.7) |
| 60–75+ | 18,141 | (20.9) | 72,515 | (12.7) |
| Mean age in years (SD) | 51.9 | (8.4) | 52.0 | (8.5) |
| Sex, n (%) | ||||
| Male | 141,695 | (96.8) | 553,659 | (96.7) |
| Race, n (%) | ||||
| White | 76,382 | (52.2) | 341,181 | (59.6) |
| African American | 35,625 | (24.3) | 117,998 | (20.6) |
| Other | 1,221 | (0.8) | 6,145 | (1.1) |
| Unknown | 33,166 | (22.7) | 106,969 | (18.7) |
| Baseline date, n (%) | ||||
| FY 1997–1999 | 25,066 | (17.1) | 98,799 | (17.3) |
| FY 2000 | 17,036 | (11.6) | 66,742 | (11.7) |
| FY 2001 | 23,144 | (15.8) | 90,084 | (15.7) |
| FY 2002 | 26,025 | (17.8) | 101,284 | (17.7) |
| FY 2003 | 27,305 | (18.7) | 106,431 | (18.6) |
| FY 2004 | 27,818 | (19.0) | 108,953 | (19.0) |
| Era of military service* | ||||
| Pre-Vietnam | 15,908 | (10.9) | 58,272 | (10.2) |
| Vietnam | 97,332 | (66.5) | 358,023 | (62.6) |
| Post-Vietnam and other | 33,135 | (22.6) | 155,952 | (27.3) |
| Selected comorbidities: | ||||
| Alcoholic liver disease | 15,448 | (10.6) | 17,232 | (3.0) |
| Alcoholism | 37,665 | (25.7) | 101,997 | (17.8) |
| Cirrhosis | 14,187 | (9.7) | 9,202 | (1.6) |
| Diabetes mellitus | 8,106 | (5.5) | 44,021 | (7.7) |
| Inflammatory bowel disease | 1,129 | (0.8) | 5,445 | (1.0) |
| Pancreatitis, acute | 4,244 | (2.9) | 11,886 | (2.1) |
| Pancreatitis, chronic | 2,764 | (1.9) | 6,898 | (1.2) |
| Cholelithiasis | 6,039 | (4.1) | 15,020 | (2.6) |
| Choledocholithiasis | 538 | (0.4) | 1,602 | (0.3) |
*
Data were missing on 19 hepatitis C virus-infected and 46 hepatitis C virus-uninfected veterans.