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Table 3 Macular capillary density on en face swept-source optical coherence tomography angiography images

From: Correlation between macular edema recurrence and macular capillary network destruction in branch retinal vein occlusion

OCT angiography parameters

no ME recurrence group (n = 21)

ME recurrence

group (n = 22)

p-value*

Superficial capillary plexus

 Macular vessel density (3 × 3-mm area)

76.70 ± 9.06

78.07 ± 7.66

0.298

 Hemi-vessel density (3 × 1.5-mm area)

  Hemi-vessel density in the unaffected area

81.49 ± 9.82

84.40 ± 9.72

0.215

  Hemi-vessel density in the affected area

72.23 ± 16.62

71.32 ± 9.87

0.544

  Hemi-vessel density disparity

9.26 ± 10.68

13.08 ± 8.81

0.031

Deep capillary plexus

 Macular vessel density (3 × 3-mm area)

73.71 ± 7.39

71.87 ± 6.22

0.190

 Hemi-vessel density (3 × 1.5-mm area)

  Hemi-vessel density in the unaffected area

81.68 ± 7.70

82.55 ± 9.20

0.512

  Hemi-vessel density in the affected area

65.57 ± 9.50

68.82 ± 8.38

0.040

  Hemi-vessel density disparity

14.10 ± 12.42

21.73 ± 12.10

0.017

  1. Values are presented as mean ± standard deviation unless otherwise indicated
  2. OCT Optical coherence tomography, ME Macular edema
  3. *Statistics by Wilcoxon rank-sum test