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Table 2 Distribution of Volumetric density grade (VDG) according to age groups

From: Volumetric breast density evaluation using fully automated Volpara software, its comparison with BIRADS density types and correlation with the risk of malignancy

Age group

VDG a (n = 61)

VDG b (n = 321)

VDG c (n = 540)

VDG d (n = 306)

Total

n

%

n

%

n

%

n

%

n

%

 < 40

2

4.7

14

33.33

12

28.57

14

33.33

42

100

41- 50

28

3.67

148

19.42

364

47.76

222

29.13

762

100

51–60

14

4.74

103

34.91

114

38.64

64

21.69

295

100

61–70

9

9.27

38

39.17

46

47.42

4

4.1

97

100

71–80

5

19.23

16

61.53

3

11.53

2

7.69

26

100

 > 80

3

50.0

2

33.33

1

16.66

0

0

6

100