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Table 3 Comparison of choriocapillaris flow density, CVI, and CVV of PD patients and healthy controls

From: Choroid and choriocapillaris changes in early-stage Parkinson’s disease: a swept-source optical coherence tomography angiography-based cross-sectional study

 

Patients

Control

P

CC flow density (%)

 0–1 mm

70.48 ± 10.11

76.29 ± 10.98

< 0.0001

 0–3 mm

73.64 ± 5.89

76.95 ± 6.59

< 0.0001

 0–6 mm

76.17 ± 3.68

78.26 ± 5.04

< 0.0001

 Superior

77.45 ± 4.15

79.45 ± 5.28

0.001

 Temporal

74.51 ± 3.14

75.77 ± 2.81

0.062

 Inferior

77.18 ± 3.77

79.49 ± 5.41

< 0.0001

 Nasal

76.32 ± 4.29

77.35 ± 5.45

0.082

CVI

 

0 ± 0

 

 0–1 mm

0.38 ± 0.13

0.37 ± 0.07

0.871

 0–3 mm

0.34 ± 0.12

0.37 ± 0.07

0.03

 0–6 mm

0.31 ± 0.11

0.35 ± 0.07

0.003

 Superior

0.31 ± 0.12

0.36 ± 0.08

0.01

 Temporal

0.3 ± 0.11

0.34 ± 0.08

0.006

 Inferior

0.31 ± 0.12

0.36 ± 0.08

0.001

 Nasal

0.31 ± 0.12

0.34 ± 0.09

0.127

CVV (mm3)

 

0 ± 0

 

 0–1 mm

0.11 ± 0.05

0.11 ± 0.03

0.94

 0–3 mm

0.85 ± 0.4

0.91 ± 0.37

0.151

 0–6 mm

2.89 ± 1.43

3.27 ± 1.12

0.023

 Superior

0.74 ± 0.37

0.87 ± 0.31

0.002

 Temporal

0.68 ± 0.34

0.78 ± 0.29

0.008

 Inferior

0.71 ± 0.38

0.82 ± 0.33

0.017

 Nasal

0.67 ± 0.39

0.69 ± 0.33

0.485

  1. CC choriocapillaris, CVI choroidal vascular index, CVV choroidal vascular volume