Table 2.
Period | Cumulative number of attritions (N) | Number of deaths | Number of LTFU | Cumulative incidence of attrition (95% CI) |
---|---|---|---|---|
1 month | 298 | 38 | 260 | 18 (16–20) |
3 months | 433 | 77 | 356 | 26 (24–28) |
6 months | 522 | 97 | 425 | 32 (29–34) |
1 year | 615 | 110 | 505 | 37 (35–40) |
2 years | 731 | 125 | 606 | 45 (43–48) |
3 years | 781 | 134 | 647 | 47 (45–50) |
4 years | 793 | 137 | 656 | 48 (45–50) |
LTFU, lost to follow up; CI, confidence interval.