Table 1 Retention rate at each assessment (N, % of previous assessment sample, % of baseline assessment sample)
Time (Days) | N | % of previous assessment | % of baseline assessment |
|---|---|---|---|
Baseline | 823 | 100 | 100 |
T2 (180) | 267 | 32 | 32 |
T3 (270) | 129 | 48 | 15 |
T4 (360) | 62 | 48 | 7 |
T5 (450) | 29 | 47 | 3 |
T6 (540) | 10 | 34 | 1 |
T7 (630) | 2 | 20 | 0 |