Clinical variables measured to assess the need for medication for nocturia at different levels of exercise (E)
| Exercise | Taken pill | Number of days observed | Average times up at night |
| Minimal E(0) | Yes | 20 | 2.65 |
| No | 15 | 3 | |
| Low level E(1) | Yes | 12 | 2 |
| No | 16 | 1.88 | |
| Medium E(2) | Yes | 10 | 2.9 |
| No | 11 | 2.09 | |
| High E(3) | Yes | 20 | 2.2 |
| No | 24 | 2.13 |