Presence of the functional symptoms straining and digitation before and after biofeedback
| Functional symptom | Before biofeedback | After biofeedback | After follow up |
| Need to strain | 86 | 61 (p<0.01) | 56 (p<0.01) |
| Rectal digitation | 39 | 22 (p=0.01) | 25 (p<0.05) |
| Vaginal digitation | 9 | 6 (NS) | 6 (NS) |
| Incomplete evacuation | 85 | 63 (p<0.01) | 64 (p<0.01) |
| Pain | |||
| None | 16 | 32 | 36 |
| Mild | 29 | 36 | 34 |
| Severe | 55 | 32 | 30 |
| Bloating | |||
| None | 14 | 32 | 28 |
| Mild | 4 | 27 | 20 |
| Severe | 82 | 49 | 52 |
Values are expressed as per cents.