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Table 4 Choriocapillaris (CC) vascular density in different study groups (ANOVA) normal participants and diabetic patients. Post Hoc analysis of subfields choroidal thickness of the studied participants (N = 188)

From: Quantitative assessment of vascular density in diabetic retinopathy subtypes with optical coherence tomography angiography

Groups
VD/
reference group
NL (40 eyes)
(M ± SD)
(%)
NDR (39eyes)
(M ± SD)
(%)
NPDR (64eyes)
(M ± SD)
(%)
PDR (33eyes)
(M ± SD)
(%)
P-value
ANOVA
Whole image
Normal
NDR
NPDR
69.82 ± 4.02 70.01 ± 2.90
0.949*
67.06 ± 5.52
< 0.001*
< 0.001*
67.25 ± 4.66
< 0.001*
0.003*
0.950
< 0.001
Fovea
Normal
NDR
NPDR
71.39 ± 3.97 71.50 ± 3.80
0.996
68.32 ± 5.16
< 0.001*
0.001*
68.98 ± 5.29
0.001*
0.003*
1.000
< 0.001
Para-fovea
Normal
NDR
NPDR
69.36 ± 4.54 69.52 ± 2.97
O.980*
66.37 ± 5.89
< 0.001*
< 0.001*
67.05 ± 4.88
0.002*
0.008*
0.798*
< 0.001
Superior hemi
Normal
NDR
NPDR
69.92 ± 4.12 69.72 ± 2.94
0.914*
66.74 ± 5.74
< 0.001*
< 0.001*
67.39 ± 4.25
0.011*
0.074*
0.437*
< 0.001
Inferior hemi
Normal
NDR
NPDR
69.70 ± 4.06 70.28 ± 3.12
0.993*
67.16 ± 5.58
< 0.001*
< 0.001*
67.70 ± 5.18
0.004*
0.002*
0.991*
< 0.001
Temporal
Normal
NDR
NPDR
69.25 ± 5.79 69.66 ± 3.46
1.000*
66.66 ± 6.23
0.002*
0.002*
67.88 ± 6.13
0.020*
0.018*
0.964*
< 0.001
Superior
Normal
NDR
NPDR
69.19 ± 4.52 69.19 ± 3.15
0.984*
66.66 ± 6.14
< 0.001*
0.001*
66.92 ± 4.91
0.042*
0.107*
0.488*
< 0.001
Nasal
Normal
NDR
NPDR
69.34 ± 4.56 68.78 ± 3.63
0.785*
65.84 ± 7.10
< 0.001*
0.001*
66.92 ± 4.33
0.025*
0.236*
0.382*
< 0.001
Inferior
Normal
NDR
NPDR
69.54 ± 4.32 70.90 ± 3.01
0.933*
66.78 ± 6.38
0.003*
< 0.001*
67.33 ± 5.34
0.010*
0.001*
0.999*
< 0.001
  1. NDR: No diabetic retinopathy, NL: Normal, NPDR: Nonproliferative diabetic retinopathy, PDR: Proliferative diabetic retinopathy
  2. *Tuckey HSD test
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