Number of patients

Mean lowest oxygen saturation (%)

Mean neck circumference (cm)

AHI < 5

14

93.5 ± 2.2

34.7 ± 4.7

AHI 5 - <15

25

89.3 ± 5.6

36.7 ± 4.0

AHI 15 - <30

9

84.7 ± 5.3

38.1 ± 5.4

AHI ≥ 30

3

79.3 ± 5.0

41.7 ± 3.1

Overall patients

51

89.7 ± 6.0

36.6 ± 4.6