Table 4 Linear analysis regression on the association between systemic parameters and the area of the optic nerve subarachnoid space from 3 to 5 mm behind the optic disc.

From: Quantitative ultrasound image assessment of the optic nerve subarachnoid space during 90-day head-down tilt bed rest

Parameters

Univariate Linear Correlation

 

Beta(95 CI%)

P value

Body Mass Index, per 1 kg/m2 decrease

−0.054 (−0.136 to 0.028)

0.194

Mean Blood Pressure, per 10 mmHg

0.092 (0.016 to 0.169)

0.019

Heart Rate, per 10 bpm decrease

−0.048 (−0.203 to -0.006)

0.079

Hipline, per 1 cm decrease

0.017 (−0.043 to 0.008)

0.185

Waistline, per 1 cm decrease

−0.011 (0.034 to 0.012)

0.335

Head Circumference, per 1 cm

−0.007 (0.079 to 0.066)

0.856