Ratio of the cross-sectional areas of the anterior and posterior divisions (A/P) at the FO level by sex
(mm2)
| Sex (n) | Division | Mean ± SD | A/P (%) |
|---|---|---|---|
| Male (25) | Anterior | 8.20 ± 1.70 | 0.77 |
| Posterior | 11.38 ± 3.13 |
||
| Female (25) | Anterior | 8.02 ± 2.32 | 0.90 |
| Posterior | 9.11 ± 2.01 |
FO: foramen ovale, SD: standard deviation.
*P < 0.05.