Table 3 Comparison of foveal and parafoveal vascular densities between males and female in different age groups. Abbreviations: SVD: superficial vascular density; DVD, deep vascular density; CVD, choroidal vascular density; CVI, choroidal vascular index; FAZ, foveal avascular zone

Total

Female

18.4 ± 7.25

50.83 ± 3.41

33.22 ± 7.72

54.44 ± 3.45

72.46 ± 4.14

70.02 ± 4.41

0.3 ± 0.11

0.7 ± 0.02

Male

22.22 ± 6.31

51.41 ± 3.04

35.86 ± 6

52.62 ± 3.37

74.05 ± 3.84

71.53 ± 4.46

0.25 ± 0.09

0.7 ± 0.03

P

< 0.001

0.168

0.007

< 0.001

0.003

0.012

0.001

0.3

< 10

Female

17.08 (16.57–19.89)

49.81 (47.78–53.36)

36.24 (32.73–37.37)

57.6 (53.64–59.43)

77.68 (72.31–80.4)

68.21 (61.4–74.9)

0.26 (0.25–0.33)

0.68 ± 0.003

Male

20.77 ± 5.87

52.6 ± 2.26

37.13 ± 6.24

55.38 ± 3.24

76.78 ± 2.03

70.82 ± 4.14

0.27 ± 0.08

0.69 ± 0.3

P

0.134

0.06

0.418

0.392

0.945

0.503

0.771

0.038

10–20

Female

15.68 ± 5.8

52.33 ± 1.95

32.27 ± 7.14

55.54 ± 1.96

75.58 ± 2.66

71.05 ± 2.55

0.32 ± 0.1

0.68 ± 0.004

Male

18.95 (17.47–24.8)

51.37 ± 1.78

37.05 ± 6.08

55.45 ± 2.54

76.53 ± 2.54

73.89 (71.96–75.01)

0.24 ± 0.1

0.69 ± 0.3

P

0.035

0.127

0.098

0.915

0.357

0.051

0.06

0.07

20–30

Female

23.23 ± 8.42

52.09 ± 2.99

38.25 ± 8.33

55.89 ± 2.44

74.36 (72.9-75.39)

72.12 (68.84–74.27)

0.23 ± 0.11

0.71 ± 0.02

Male

26.22 ± 3.98

52.72 ± 2.49

38.86 (32.13–40.54)

53.16 ± 2.97

76.35 (75.55–77.65)

75.09 ± 2.07

0.24 ± 0.08

0.70 ± 0.02

P

0.272

0.525

0.706

0.003

0.036

0.005

0.913

0.58

30–40

Female

23.35 ± 5.39

53.1 ± 2.27

37.08 ± 6.17

56.2 ± 2.59

74.74 ± 3.29

71.86 ± 3.63

0.26 ± 0.09

0.7 ± 0.02

Male

26.78 ± 5.47

52.79 ± 2.37

36.55 ± 4.86

52.8 ± 3.04

76.15 ± 1.57

74.3 ± 2.27

0.22 ± 0.08

0.71 ± 0.02

P

0.079

0.682

0.797

< 0.001

0.13

0.021

0.213

0.258

40–50

Female

16.24 ± 7.06

51.44 ± 2.93

29.22 ± 8.43

54.58 ± 2.13

72.29 ± 3.06

71.32 ± 3.86

0.36 ± 0.13

0.70 ± 0.01

Male

22.74 ± 7.21

51.37 ± 2.13

35.61 ± 7.59

51.7 ± 2.77

73.39 ± 2.97

70.98 ± 2.26

0.25 ± 0.11

0.71 ± 0.03

P

0.014

0.942

0.036

< 0.001

0.251

0.753

0.022

0.66

50–60

Female

19.12 ± 6.57

49.28 ± 4.22

35.04 ± 5.2

53.7 ± 3.67

71.67 (69.56–73.64)

71.98 (67.92–73.91)

0.27 ± 0.07

0.72 ± 0.004

Male

20.86 ± 5.34

51.71 ± 2.88

35.64 ± 4.28

52.08 ± 2.32

72.15 ± 3.32

69.76 ± 3.84

0.25 ± 0.07

0.69 ± 0.03

P

0.46

0.041

0.739

0.146

0.279

0.68

0.528

0.001

60–70

Female

15.68 ± 7.24

49.3 ± 3.29

30.63 ± 7.07

53.79 ± 3.19

70.47 ± 3.49

68.59 ± 3.96

0.32 ± 0.1

0.70 ± 0.03

Male

19.01 ± 5.37

48.56 ± 3.33

34.64 ± 6.58

50.43 ± 3.52

70.08 ± 4.31

68.13 ± 5.91

0.26 ± 0.08

0.71 ± 0.05

P

0.091

0.437

0.059

0.001

0.729

0.766

0.038

0.80

> 70

Female

16.78 ± 5.86

49.04 ± 3.49

31.34 ± 8.14

50.65 ± 4.87

71.42 (67.24–73.59)

67.21 ± 4.5

0.32 ± 0.12

0.72 ± 0.02

Male

13.86 ± 5.17

48.69 ± 4.89

27.76 ± 5.45

49.47 ± 3.04

70.71 ± 3.67

68.47 ± 4.45

0.34 ± 0.12

0.67 ± 0.01

P

0.187

0.86

0.201

0.46

0.759

0.531

0.602

0.001