Table 4 Comparison of ONSD, ETD, and ONSD/ETD in healthy adults by gender.

From: Related studies on measuring the normal values of optic nerve sheath diameter in healthy Chinese adults based on CT scans

Indicators

Male

Female

F

t

P

Left

ETD

22.66 ± 0.84

22.30 ± 0.83

0.21

4.14

<0.001

ONSD3 mm

5.40 ± 0.42

5.15 ± 0.41

0.06

5.87

<0.001

ONSD10mm

4.43 ± 0.36

4.25 ± 0.33

1.33

4.80

<0.001

ONSD3 mm/ETD

0.24 ± 0.02

0.23 ± 0.02

0.01

3.73

<0.001

ONSD10 mm/ETD

0.20 ± 0.02

0.19 ± 0.02

0.09

2.71

<0.01

Right

ETD

22.65 ± 0.83

22.25 ± 0.84

0.01

0.55

<0.001

ONSD3 mm

5.41 ± 0.43

5.14 ± 0.42

0.01

5.99

<0.001

ONSD 10mm

4.42 ± 0.35

4.25 ± 0.33

0.43

4.74

<0.001

ONSD3 mm/ETD

0.24 ± 0.02

0.23 ± 0.02

0.03

3.70

<0.001

ONSD10 mm/ETD

0.20 ± 0.02

0.18 ± 0.02

0.08

2.46

<0.05