Patient characteristics and factors precipitating constipation
| Number of patients | 100 (87 F) |
| Median (range) age | 40 (10–79) |
| Median (range) number of sessions | 4 (1–10) |
| Number with constipation as a child | 34 |
| Median (range) age of onset | 21 (0–70) |
| Precipitating factors | |
| None known | 50 |
| Vaginal delivery | 9 |
| Hysterectomy | 12 |
| Surgery | 13 |
| Other | 16 |
| Psychological problems identified | 19 |