Table 1.
HAV Testing and Immunity Statusa
| HBV cohort (n = 3846), n (%) |
HCV cohort (n = 15,471), n (%) |
|
|---|---|---|
| Hepatitis A antibody (anti-HAV) testing | ||
| Never tested | 1255 (32.6) | 5191 (33.6) |
| Tested | 2591 (67.4) | 10,280 (66.4) |
| Tested, by race/ethnicity | ||
| Asian/Pacific Islander | 1484 (68.1) | 530 (77.3) |
| Hispanic | 32 (72.7) | 372 (72.1) |
| Non-Hispanic black | 358 (71.6) | 2095 (66.2) |
| Non-Hispanic white | 503 (65.8) | 6695 (66.5) |
| Other/unknown | 214 (59.4) | 588 (57.0) |
| Among those tested | ||
| Anti-HAV negative | 1066 (41.1) | 6253 (60.8) |
| Anti-HAV positive | 1525 (58.9) | 4027 (39.2) |
| Anti-HAV positive, by race/ethnicity | ||
| Asian/Pacific Islander | 1043 (70.3) | 281 (53.0) |
| Hispanic | 18 (56.3) | 220 (59.1) |
| Non-Hispanic black | 135 (37.7) | 825 (39.4) |
| Non-Hispanic white | 191 (38.0) | 2447 (36.6) |
| Other/unknown | 138 (64.5) | 254 (43.2) |
| Total never tested for HAV—of these | 1255 | 5191 |
| Received at least one dose of | 212 (16.9) | 677 (13.0) |
| hepatitis A vaccineb | ||
| No hepatitis A vaccination | 1043 (83.1) | 4514 (87.0) |
| Total tested anti-HAV negative—of these | 1066 | 6253 |
| Received at least one dose of | 422 (39.6) | 2379 (38.1) |
| hepatitis A vaccineb | ||
| No hepatitis A vaccination | 644 (60.4) | 3874 (62.0) |
| Among total cohort, those with neither | 1687 (43.9) | 8388 (54.2) |
| vaccination nor positive anti-HAV test | ||
HAV, hepatitis A virus.
a
Among 3,846 patients with chronic hepatitis B virus (HBV) infection and 15,471 patients with chronic hepatitis C virus (HCV) infection at 4 large US health systems.
b
Dates of vaccination ranged from 1995 to 2016.