| Monitoring intervals | Hepatitis B status (n) | Grade 1 (%) | Grade 2 (%) | Grade 3 (%) | Grade 4 (%) | Total (%) | |
| Two Weeks | Positive | 10 | 30.8 | 0.0 | 0.0 | 0.0 | 30.8 |
| Negative | 120 | 8.3 | 0.8 | 0.8 | 0.0 | 9.9 | |
| Six Weeks | Positive | 6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Negative | 82 | 12.2 | 3.7 | 1.2 | 1.2 | 18.3 | |
| Three months | Positive | 8 | 25.0 | 0.0 | 0.0 | 0.0 | 25.0 |
| Negative | 141 | 9.9 | 5.0 | 2.1 | 0.0 | 17.0 | |
| Six Months | Positive | 17 | 17.6 | 0.0 | 0.0 | 0.0 | 17.6 |
| Negative | 164 | 23.2 | 5.5 | 0.0 | 0.6 | 29.6 | |
| One Year | Positive | 15 | 6.7 | 0.0 | 0.0 | 0.0 | 6.7 |
| Negative | 107 | 16.8 | 5.6 | 0.0 | 0.9 | 23.3 | |