| Follow-up period |
|||||||||||||
| Effect size |
 6 months |
7–12 months |
>12 months |
Grand total |
6 months |
7–12 months |
>12 months |
||||||
| Low | 8 | 3 | 1 | 12 | 61.54% | 17.65% | 16.67% | ||||||
| Medium | 2 | 9 | 3 | 14 | 15.38% | 52.94% | 50.00% | ||||||
| High | 3 | 5 | 2 | 10 | 23.08% | 29.41% | 33.33% | ||||||
| Grand total |
13 |
17 |
6 |
36 |
|||||||||