Table 2. Patient Adherence Rate to (peg) Interferon Alpha, Ribavirin, and Its Combination at Months 1, 3, and 6 of Treatment Determined by Self-reporting and Pill Counting Methods .
| Anti-HCV medication | Adherence, Self-reported (%) | Adherence, Pill counting (%) | P value |
|---|---|---|---|
| Month 1 | |||
| (Peg) Interferon alpha | 189/190 (99.5) | 166/190 (87.4) | 0.126 |
| Ribavirin | 189/190 (99.5) | 178/190 (93.7) | 0.063 |
| Combination | 187/190 (98.4) | 164/190 (86.3) | 0.318 |
| Month 3 | |||
| (Peg) Interferon alpha | 144/190 (75.8) | 101/190 (53.2) | < 0.001 |
| Ribavirin | 144/190 (75.8) | 124/190 (65.3) | < 0.001 |
| Combination | 129/190 (67.9) | 88/190 (46.3) | < 0.001 |
| Month 6 | |||
| (Peg) Interferon alpha | 78/190 (41.1) | 42/190 (22.1) | < 0.001 |
| Ribavirin | 94/190 (49.5) | 73/190 (38.4) | < 0.001 |
| Combination | 61/190 (32.1) | 32/190 (16.8) | < 0.001 |