Table 1 Characteristics of patients with the ovary above or below PTV
| Characteristics | Above PTV (n = 32) | Below PTV (n = 144) | P-value |
|---|---|---|---|
| Ovarian volume, cm3 | 12.84 ± 7.92 | 13.63 ± 9.13 | 0.650* |
| Ovarian cyst, case (rate) | 6 (18.8%) | 29 (20.1%) | 0.859# |
| Side of transposed ovaries | 0.117# | ||
| Right side | 27 (84.4%) | 102 (70.8%) | |
| Left side | 5 (15.6%) | 42 (29.2%) | |
| Radiotherapy methods | 0.001# | ||
| 3D-CRT | 21 (65.6%) | 47 (32.6%) | |
| IMRT | 11 (34.4%) | 97 (67.4%) | |
| Distance from iliac crest plane, cm | 3.87 ± 1.92 | 0.49 ± 2.20 | 0.000* |
| Dmax≤400 cGy, case (rate) | 32 (100%) | 57 (39.6%) | 0.000# |