Univariate analysis of measured parameters versus the side of the inferior petrosal sinus and patient gender
| Left to right side difference | Right | Left | P values |
| Distance from IPS to BS at CN VI (mm) | 3.61±1.59 | 4.11±1.74 | 0.204 |
| Shortest distance from IPS to BA (mm) | 7.78±4.11 | 9.72±2.41 | 0.019 |