| Outcome | No tobacco chewing | Tobacco chewing | Total | P value | ||
| N | % | N | % | |||
| Complete response | 37 | 84.09091 | 5 | 71.42857 | 42 | >0.05 |
| Residual disease | 7 | 15.90909 | 2 | 28.57143 | 9 | |
| Total | 44 | 100 | 7 | 100 | 51 | |
| Fishers-Exact-Test (Chi square) | 0.6 | |||||