Table 2 Anticipated precision with n = 70 (within arm)
| Â | Observed proportion (adherence, retention) | |||||
|---|---|---|---|---|---|---|
| Â | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 0.95 |
Normal approximation of precision | ±0.117 | ±0.115 | ±0.107 | ±0.094 | ±0.070 | ±0.051 |
Exact binomial 95% CI | 0.38, 0.62 | 0.48, 0.72 | 0.58, 0.80 | 0.69, 0.89 | 0.80, 0.96 | 0.88, 0.99 |