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Mean values ± standard deviations and median min/max for the four different measurement techniques.
| Rigid rectoscopy | MRI1 | MRI2 | MRI3 | |
|---|---|---|---|---|
| n | 106 | 107 | 107 | 107 |
| Mean (cm) | 7.90 | 8.30 | 7.42 | 9.00 |
| SD (cm) | 3.499 | 3.068 | 2.707 | 3.967 |
| Median (cm) | 8.00 | 9.02 | 7.58 | 9.71 |
| Min (cm) | 0 | 0 | 0 | 0 |
| Max (cm) | 15.00 | 14.68 | 14.05 | 21.54 |
