| Grade | No. (%) |
Hughes scale at presentation | Grade 1 | 1 (5.0%) |
Grade 2 | 2 (10.0%) | |
Grade 3 | 6 (30.0%) | |
Grade 4 | 8 (40.0%) | |
Grade 5 | 3 (15.0%) | |
| Grade 1 | 3 (15.0%) |
Grade 2 | 8 (40.0%) | |
Grade 3 | 5 (25.0%) | |
Grade 4 | 3 (15.0%) | |
Grade 6 | 1 (5.0%) | |
| Grade 0 | 5 (25.0%) |
Grade 1 | 8 (40.0%) | |
Grade 2 | 2 (10.0%) | |
Grade 3 | 3 (15.0%) | |
Grade 4 | 1 (5.0%) | |
Grade 6 | 1 (5.0%) |