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Definition of adherence (implementation) categories
| Adherence category | Percentage of capsules taken per 6 months | Number of capsules taken per 6 months (183 days) | Number of capsules missed per 6 months | Number of capsules not taken per 28-day package | Number of packages not taken per year (of 13 packages) |
|---|---|---|---|---|---|
| Perfectly adherent | 100% | 183 | 0 | 0 | 0 |
| Optimally adherent | ≥96.2% | >176 | ≤7 | ≤1 | ~0.5 |
| Suboptimally adherent | <96.2% | ≤176 | >7 | >1 | ~0.5 |
| ≥85.8% | >157 | ≤26 | ≤4 | ~2 | |
| Nonadherent | <85.8% | ≤157 | >26 | >4 | ~2 |
