Table 3.

Continuous variables represented by Mean ± Standard deviation or Median (interquartile range) with respect to intraoperative visualisation with p values

S.No	Parameters	Completely visible RWN	Partially visible RWN	Invisible RWN	p value
1.	The Facial recess width (mm)	4.67 ± 0.83	3.4 ± 0.89	4.0 ± 0.25	< 0.001
2.	Location to mastoid segment (mm)	2.13 ± 0.69	1.38 ± 0.72	1.6 ± 0.61	0.004
3.	Basal turn and ICA angle (degrees)	5.53 ± 3.96	6.29 ± 3.77	6.6 ± 2.6	0.742
4.	Angle between EAC and Basal turn (degrees)	6(20.5)	21.5(20.75)	8(13.5)	0.026
5.	Anterior border of IAC (degrees)	173(8.75)	172.5(11.75)	173(7)	0.556
6.	IAC to sagittal plane angle (degrees)	85.75 ± 2.88	85.64 ± 3.31	87.4 ± 1.51	0.476

ICA: Internal Carotid Artery EAC: External Auditory Canal