Input signal

Measurement position

Model

r
^{2}

F

P


OSASW

3 mm behind the globe

Linear

0.70

92.23

<0.0001

Quadratic

0.71

48.57

<0.0001

Cubic

0.74

33.22

<0.0001

9 mm behind the globe

Linear

0.77

126.09

<0.0001

Quadratic

0.78

65.42

<0.0001

Cubic

0.80

46.51

<0.0001

15 mm behind the globe

Linear

0.69

79.93

<0.0001

Quadratic

0.71

43.59

<0.0001

Cubic

0.73

30.67

<0.0001

BMI
 
Linear

0.32

18.93

<0.0001

Quadratic

0.40

13.21

<0.0001

Cubic

0.41

13.68

<0.0001

MABP
 
Linear

0.32

19.19

<0.0001

Quadratic

0.35

10.60

<0.0001

Cubic

0.36

10.80

<0.0001

 Multivariate analyses were constructed to assess the associations between lumbar CSFP measurements and orbital subarachnoid space width, lumbar cerebrospinal fluid pressure, and body mass index, which were significantly associated with CSFP in univariate analysis.
 BMI body mass index, Lumbar CSFP lumbar cerebrospinal fluid pressure, MABP mean arterial blood pressure, OSASW orbital subarachnoid space width.