Width of 95% CI for estimating adherence at 6 months, assuming a sample size of 120 and a design effect of 2
| Proportion adherent at 6 months (%) | LCL (%) | UCL (%) | Precision (1/2 width of 95% CI) (%) |
| 30 | 18.4 | 41.6 | 11.6 |
| 40 | 27.6 | 52.4 | 12.4 |
| 50 | 37.3 | 62.7 | 12.7 |
| 60 | 47.6 | 72.4 | 12.4 |
| 70 | 58.4 | 81.6 | 11.6 |
| 80 | 69.9 | 90.1 | 10.1 |
| 90 | 82.4 | 97.6 | 7.6 |
LCL, Lower Confidence Limit; UCL, Upper Confidence Limit.