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Anti-HBc-positive rates between the immunized and the unim munized children
| Age group (year) |
Immunized children |
Unimmunized children |
||||
| n | Positivea | % | n | Positivea | % | |
| 1 | 219 | 7 | 3.2 | 759 | 85 | 11.2 |
| 3 | 317 | 8 | 2.5 | 539 | 92 | 17.1 |
| 5 | 310 | 16 | 5.2 | 590 | 142 | 24.1 |
| 7 | 248 | 9 | 3.6 | 655 | 181 | 27.6 |
| 9 | 89 | 8 | 9.0 | 364 | 111 | 30.5 |
| Total | 1183 | 48 | 4.1 | 2907 | 611 | 21.0 |
Anti-HBc-positive was defined as inhibitory ratio ≥ 75%.
