Table 1 Comparisons of the demographic and clinical characteristics among the NAION, NTG, and healthy control eyes.

From: Clinical characteristics of choroidal microvasculature dropout in normal-tension glaucoma versus nonarteritic anterior ischemic optic neuropathy: an optical coherence tomography angiography study

 

NAION group

NTG group

Healthy group

p value

p value

NAION versus NTG group

NAION versus healthy group

Number of eyes

27

27

27

  

Sex (male/female)

16/11

10/17

11/16

0.102

0.174

Age (years)

65.2 ± 7.8

61.7 ± 11.1

61.6 ± 7.1

0.182

0.079

Refractive error (D)

 − 0.16 ± 1.73

 − 1.13 ± 2.61

 − 0.66 ± 1.59

0.117

0.275

Intraocular pressure (mmHg)

15.6 ± 3.2

14.9 ± 4.8

14.5 ± 2.5

0.547

0.171

Hypertension (n, %)

5 (18.5%)

3 (11.1%)

 

0.444

 

Diabetes (n, %)

3 (11.1%)

2 (7.4%)

 

0.639

 

Hyperlipidemia (n, %)

2 (7.4%)

4 (14,8%)

 

0.386

 

Visual field mean deviation (dB)

 − 15.13 ± 8.34

 − 15.11 ± 7.57

 − 0.08 ± 1.47

0.991

 < 0.001

Cup-to-disc ratio

0.57 ± 0.17

0.78 ± 0.07

0.59 ± 0.11

 < 0.001

0.546

Peripapillary RNFL thickness (μm)\

68.6 ± 11.2

67.4 ± 12.1

89.5 ± 8.5

0.700

 < 0.001

Peripapillary vessel density (%)

32.1 ± 7.4

38.1 ± 7.9

59.4 ± 3.5

0.006

 < 0.001

Choroidal vessel density of β-PPA (%)

49.9 ± 5.2

50.0 ± 5.2

59.7 ± 3.2

0.949

 < 0.001

β-PPA area (mm2)

1.166 ± 0.410

1.215 ± 0.566

1.369 ± 0.414

0.735

0.089

Presence of CMvD (n, %)

15 (55.6)

20 (74.1)

0

0.154

 

CMvD area (mm2)

0.278 ± 0.172

0.138 ± 0.068

 

0.002

 

CMvD angular width (°)

86.5 ± 42.3

35.1 ± 16.2

 

 < 0.001

 
  1. β-PPA β-zone peripapillary atrophy, CMvD Choroidal microvasculature dropout, D Diopter, NAION Nonarteritic anterior ischemic optic neuropathy, NTG Normal-tension glaucoma, RNFL Retinal nerve fiber layer.
  2. Significant p values are shown in bold type.