Table 2.

Mean gain, standard deviation, variance, skewness and kurtosis of the vestibulo-ocular reflex obtained in the semicircular canals tested in the different groups with the video head impulse test.

		Anterior SCC	Lateral SCC	Posterior SCC
Controls	Mean	0.91	0.95	0.82
	Standard deviation	0.06	0.07	0.04
	Variance	0.004	0.005	0.002
	Skewness	−0.261	0.107	0.184
	Kurtosis	−0.485	0.608	0.256
CNSOM	Mean	0.86	0.94	0.78
	Standard deviation	0.12	0.08	0.08
	Variance	0.015	0.007	0.007
	Skewness	−0.526a	0.270	0.410
	Kurtosis	0.742	−0.324	0.713
CSOM	Mean	0.9	0.97	0.82
	Standard deviation	0.86	0.11	0.12
	Variance	0.015	0.013	0.015
	Skewness	−1.184b	0.150	−1.452b
	Kurtosis	1.670	1.254	3.523
Cholesteatoma	Mean	0.82	0.99	0.78
	Standard deviation	0.11	0.11	0.12
	Variance	0.013	0.013	0.015
	Skewness	−0.037	−0.248	−0.662a
	Kurtosis	0.409	−0.056	1.482

CNSOM, Chronic Non-Suppurative Otitis Media; CSOM, Chronic Suppurative Otitis Media; Cholesteatoma, Cholesteatomatous Chronic Otitis Media; SCC, Semicircular Canal.

^aModerately skewed distribution value (0.5–1.0).

^bHighly skewed distribution value (> 1.0).