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Table 2 Comparisons of measurements between genders and between left/right eyes

From: Ultrasound measurement of optic nerve diameter and optic nerve sheath diameter in healthy Chinese adults

 

Between male and female

Between left and right eyes

 

Male

Female

P value

Right

Left

P value

 

(n = 414)

(n = 624)

 

(n = 519)

(n = 519)

 

ETD (mm)

22.3 (21.6 - 23.4)

22.3 (21.6 - 23.1)

0.208

22.3 (21.6 - 23.1)

22.3 (21.7 - 23.1)

0.894

OND (mm)

3.2 (2.9 - 3.4)

3.1 (2.8 - 3.3)

0.895

3.2 (2.9 - 3.4)

3.2 (2.9 - 3.4)

0.284

ONSD (mm)

5.1 (4.7 - 5.4)

5.1 (4.7 - 5.4)

0.233

5.1 (4.7 - 5.4)

5.0 (4.7 - 5.3)

0.334

OND/ONSD ratio

0.62 (0.58 - 0.67)

0.63 (0.59 - 0.67)

0.079

0.63 (0.59 - 0.67)

0.63 (0.59 – 0.67)

0.429

  1. Data were presented as median and inter-quartile range
  2. ETD eyeball transverse diameter, OND optic nerve diameter, ONSD optic nerve sheath diameter