| Cases n (%) | Controls n (%) |
| |
NDI before treatment | 10 - 29 | 12 (52.1) | 16 (64) |
|
30 - 50 | 11 (47.9) | 9 (36) |
| |
Total | 23 (100) | 25 (100) | P-value = 0.02 | |
NDI after 3 months | 0 - 9 | 16 (69.6) | 7 (28) |
|
10 - 29 | 7 (30.4) | 18 (72) |
| |
Total | 23 (100) | 25 (100) |
|