Table 1.
Radiographic measurements of the midpelvis
| Anteroposterior Diameter (cm) | Transverse Diameter (cm) | Circumference (cm) | |
|---|---|---|---|
| 5th percentile | 9 | 8 | 29.0 |
| 10th percentile | 9.5 | 9 | 29.8 |
| Median | 11.5 | 10 | 34.1 |
| 90th percentile | 12.5 | 12 | 37.3 |
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