Group | Total valid answers | Answers corrected with LOCF | % |
PG1 | 2688 | 11 | 0.4% |
PG2 | 10,146 | 104 | 1.0% |
YG1 | 11,131 | 69 | 0.6% |
YG2 | 7037 | 63 | 0.9 |