| Variables | Sex | Number | Average | Standard deviation | P-value |
| BZD (mm) | Male | 391 | 133.08 | 7.30 | 0.001 |
| Female | 509 | 128.03 | 6.31 | ||
| WUCI (mm) | Male | 391 | 9.74 | 0.26 | 0.001 |
| Female | 509 | 9.12 | 0.25 | ||
| DCT (mm) | Male | 391 | 37.44 | 1.98 | 0.001 |
| Female | 509 | 36.29 | 1.55 |