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Table 7 Speakers clinical variables estimation using i-vectors-SVR (RBF kernel)

From: Reviewing the connection between speech and obstructive sleep apnea

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

  1. AHI apnea–hypopnea index, BMI body mass index, CP cervical perimeter
  2. The correlation coefficients (ρ) are significant beyond the 0.01 level of confidence
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