| MH Neck | Positive | Negative | Total |
| Bent | 1 | 8 | 9 |
| Asymmetrical | 3 | 7 | 10 |
| Thick insertion | 7 | 20 | 27 |
| Thin | 2 | 3 | 5 |
| Aspermia | 0 | 4 | 4 |
| Normal | 17 | 36 | 53 |
| Total | 30 | 78 | 108 |
| P value | 0.5 | ||