Table 7.

Speakers clinical variables estimation using i-vectors-SVR (RBF kernel)

Clinical variable	I-vector dimension
	Mean absolute error (MAE)						Correlation coefficient (ρ)
	400	300	200	100	50	30	400	300	200	100	50	30
AHI	14.04	13.91	13.63	13.48	13.84	14.12	0.00	0.17	0.25	0.26	0.18	0.02
Height (cm)	5.28	5.23	5.16	5.24	5.46	5.43	0.40	0.41	0.42	0.41	0.29	0.32
Age (years)	9.46	9.22	8.29	8.68	9.10	9.53	0.42	0.51	0.61	0.57	0.50	0.41
Weight (kg)	12.39	12.82	12.18	12.11	12.27	12.59	0.29	0.18	0.32	0.35	0.34	0.24
BMI (kg/m2)	3.73	3.70	3.66	3.68	3.72	3.77	0.20	0.18	0.27	0.27	0.21	0.14
CP (cm)	2.38	2.42	2.32	2.34	2.42	2.44	0.31	0.26	0.42	0.40	0.31	0.26

AHI apnea–hypopnea index, BMI body mass index, CP cervical perimeter

The correlation coefficients (ρ) are significant beyond the 0.01 level of confidence