Time | Not missing | Did not complete follow-up | Did not complete individual question |
---|---|---|---|
Baseline | 1689 (98.7%) | 0 (0%) | 23 (1.3%) |
6Â months | 1249 (73.0%) | 358 (20.9%) | 105 (6.1%) |
12Â months | 1402 (81.9%) | 243 (14.2%) | 67 (3.9%) |
24Â months | 1343 (78.4%) | 317 (18.5%) | 52 (3.1%) |
36Â months | 1152 (67.3%) | 451 (26.3%) | 109 (6.4%) |