Change in rectal sensitivity (ml) with the menstrual cycle
| Menses | Follicular | Luteal | Premenstrual | |
|---|---|---|---|---|
| Results are expressed as geometric mean (95% confidence interval). | ||||
| Ratio is menses:period concerned, where *p<0.05 and **p<0.01. | ||||
| 1st sensation | 10 (9, 10) | 12 (10, 14) | 12 (10, 14) | 11 (10, 13) |
| Ratio | 0.8 (0.7, 0.9)* | 0.8 (0.7, 0.9)** | 0.9 (0.7, 1.0) | |
| Open bowels | 22 (17, 29) | 34 (26, 44) | 34 (27, 43) | 30 (23, 38) |
| Ratio | 0.7 (0.5, 0.9)* | 0.7 (0.5, 0.8)** | 0.8 (0.6, 1.0) | |
| Urgency | 51 (39, 65) | 71 (55, 91) | 71 (55, 91) | 75 (62, 90) |
| Ratio | 0.7 (0.5, 0.9)* | 0.7 (0.5, 0.9)* | 0.7 (0.5, 0.9)** | |
| Discomfort | 117 (100, 136) | 132 (116, 151) | 133 (117, 152) | 133 (117, 151) |
| Ratio | 0.9 (0.8, 0.9)* | 0.9 (0.8, 0.9)* | 0.9 (0.8, 0.9)** | |