Table 3 Comparison of SS-OCTA parameters between the two groups of study participants.

From: SS-OCTA assessment of fundus microvascular changes and their correlation with coronary lesion severity in severe coronary heart disease

 

Observation group (n = 49)

Control group (n = 49)

χ2/t

P value

Vascular density of optic disc area (%)

 RPCP

  Optic papilla

92.24 [88.50; 93.62]

93.10 [90.41; 94.09]

− 1.105

0.269

  Peripapillary

65.32 [61.43; 67.57]

65.94 [63.33; 69.21]

− 1.098

0.272

  Mean

71.89 [68.32; 73.81]

72.41 [70.23; 74.71]

− 1.027

0.305

 SVP

  Optic papilla

1.76 [1.08; 2.86]

1.94 [1.42; 3.46]

− 1.361

0.174

  Peripapillary

30.29 [25.84; 33.32]

29.13 [27.90; 32.42]

− 0.032

0.974

  Mean

23.20 [19.55; 26.17]

22.29 [21.18; 25.13]

− 0.139

0.89

 ICP

  Optic papilla

0.47 [0.15; 1.32]

0.78 [0.36; 1.74]

− 1.432

0.152

  Peripapillary

14.65 [11.73; 19.02]

17.02 [13.54; 18.12]

− 0.657

0.511

  Mean

11.21 [9.21; 14.84]

12.97 [10.30; 13.90]

− 0.707

0.48

 DCP

  Optic papilla

30.99 [23.45; 36.02]

26.77 [19.70; 32.71]

− 1.19

0.234

  Peripapillary

4.23 [3.01; 6.50]

5.64 [4.13; 7.00]

− 1.666

0.096

  Mean

11.21 [9.52; 13.15]

10.77 [9.23; 12.81]

− 0.053

0.958

RNFL thickness of optic disk area (µm)

 Temporal quadrant

77.00 [69.00; 90.00]

77.00 [75.00; 84.00]

− 0.377

0.706

 Superior quadrant

136.82 ± 15.00

137.55 ± 16.60

− 0.626

0.819

 Nasal quadrant

81.00 ± 14.51

81.18 ± 13.40

− 0.065

0.948

 Inferior quadrant

139.00 [130.00; 147.00]

145.00 [135.00; 154.00]

− 1.514

0.130

 Mean

108.65 ± 11.05

109.76 ± 10.35

− 0.509

0.612

 GC-IPL thickness (µm)

80.28 ± 6.41

80.57 ± 5.55

− 0.238

0.812

 Total macular thickness (µm)

289.76 [276.07; 300.44]

289.44 [283.00; 295.87]

− 0.188

0.851

Vascular density of the macula region (%)

 CVI

    

  Fovea

0.40 ± 0.08

0.40 ± 0.07

0.282

0.778

  Parafovea

0.39 [0.35; 0.44]

0.38 [0.35; 0.42]

− 0.476

0.634

  Perifovea

0.37 [0.33; 0.41]

0.37 [0.34; 0.39]

− 0.210

0.834

  Mean

0.37 [0.34; 0.41]

0.37 [0.34; 0.40]

− 0.313

0.755

 RPCP

  Parafovea

3.54 ± 1.49

3.56 ± 1.41

− 0.073

0.942

  Perifovea

25.37 ± 2.95

25.07 ± 2.09

0.574

0.568

  Mean

19.73 ± 2.22

19.51 ± 1.69

0.533

0.595

 SVP

  Parafovea

46.59 [41.01; 49.83]

49.49 [44.74; 50.99]

− 2.355

0.019

  Perifovea

43.23 [41.98; 46.35]

45.53 [44.27; 48.39]

− 3.123

0.002

  Mean

42.70 [40.96; 45.89]

45.22 [43.75; 47.83]

− 3.165

0.002

 SVC

  Parafovea

42.90 [37.28; 47.20]

45.86 [41.75; 48.70]

− 2.277

0.023

  Perifovea

45.70 ± 5.22

47.59 ± 3.33

− 2.140

0.035

  Mean

43.87 ± 4.93

45.96 ± 3.54

− 2.400

0.019

 ICP

  Parafovea

39.15 [35.86; 41.95]

41.54 [38.36; 43.81]

− 2.348

0.019

  Perifovea

35.34 [32.61; 37.89]

36.42 [33.71; 39.30]

− 1.751

0.080

  Mean

35.49 [32.51; 38.13]

37.59 [35.05; 39.45]

− 2.206

0.027

 DCP

  Parafovea

11.18 [7.80; 13.60]

13.97 [10.71; 17.77]

− 3.364

0.001

  Perifovea

19.87 [14.98; 22.70]

23.36 [19.33; 26.05]

− 3.286

0.001

  Mean

16.56 ± 5.58

20.62 ± 4.27

− 4.050

< 0.001

 DVC

  Parafovea

54.66 [52.30; 56.26]

56.45 [54.63; 58.76]

− 3.052

0.002

  Perifovea

55.13 [51.21; 56.89]

55.98 [54.14; 58.25]

− 2.256

0.024

  Mean

53.74 [49.64; 55.45]

55.04 [53.31; 57.22]

− 2.810

0.005

  1. RPCP radial peripapillary capillary plexus, SVP superficial vascular plexus, ICP intermediate capillary plexus, DCP deep capillary plexus, RNFL retinal nerve fibre layer, GC-IPL ganglion cell-inner plexiform layer, CVI choroidal vascular index, SVC superficial vascular complex, DVC deep vascular complex.
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