Correlation with tumour diameter
The MVSP of VIN cases upon stimulation of the 30 Hz ipsilateral and contralateral mastoid processes were linearly correlated with tumour size (p = 0.000 [R2 =0.368] and p=0.02 [R2 = 0.409], respectively). VIN stimulation and VOR gain values did not have any statistically significant correlations with tumour size.