Subject allocation
| Visit | Eligible for follow-up (n) | Completed visit | Completed visit and imaging | Missed visit | Lost to follow-up | Death | Withdrawn/ discontinued |
| 2 year | 140 | 100 (140/140) | 47.1 (66/140) | 0.0 (0/140) | 0.7 (1/140) | 1.4 (2/140) | 1.4 (2/140) |
| 3 year | 137 | 92.0 (126/137) | 81.0 (111/137) | 8.0 (11/137) | 0.7 (1/137) | 1.5 (2/137) | 0.0 (0/137) |
| 4 year | 132 | 97.0 (128/132) | 39.4 (52/132) | 3.0 (4/132) | 0.8 (1/132) | 2.3 (3/132) | 0.8 (1/132) |
| 5 year | 123 | 100.0 (123/123) | 67.5 (83/123) | 0.0 (0/123) | 4.9 (6/123) | 0.0 (0/123) | 2.4 (3/123) |
Values are % (n/N), unless otherwise stated.