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)

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