Differences between the superior and inferior sectors (mean (SD))
| Division | Superior | Inferior | p Value | 95% CI of the difference |
| 0–180 v 180–360 degrees | 72.67 (14.80) | 71.81 (14.80) | 0.181 | −0.41 to 2.13 |
| 45–135v 225–315 degrees | 90.03 (17.16) | 89.24 (16.97) | 0.420 | −1.14 to 2.72 |