Table 3 Association between mammographic density/structural appearance and breast cancer in 380 screening women^a

BI-RADS

0.63 (0.57–0.69)

 D1

30/107

21.9

1 (reference)

-

 D2

31/73

29.8

1.53 (0.85–2.75)

NS

 D3

37/57

39.4

2.37 (1.32–4.25)

0.004

 D4

23/22

51.1

3.93 (1.88–8.20)

<0.001

Tabár

0.65 (0.59–0.71)

 PI

38/96

28.4

1.81 (0.96–3.42)

NS

 PII

18/83

17.8

1 (reference)

-

 PIII

9/13

40.9

3.23 (1.20–8.75)

0.021

 PIV

49/51

49.0

4.40 (2.31–8.38)

<0.001

 PV

7/16

30.4

1.97 (0.70–5.57)

NS

Automated texture (MTR)^c

0.63 (0.57–0.69) cont.

0.63 (0.56–0.69) cat.

 Q1

19/65

22.6

1 (reference)

-

 Q2

24/65

27.0

1.27 (0.63–2.54)

NS

 Q3

21/65

24.4

1.11 (0.54–2.25)

NS

 Q4

57/64

47.1

3.04 (1.63–5.67)

<0.001

BI-RADS + MTR

0.66 (0.60–0.72)

 Q1

11/64

14.7

1 (reference)

-

 Q2

23/65

26.1

2.06 (0.93–4.57)

NS

 Q3

33/66

33.3

2.91 (1.36–6.25)

0.006

 Q4

54/64

45.8

4.91 (2.35–10.24)

<0.001

BI-RADS + Tabár

0.67 (0.61–0.72)

 Q1

13/64

16.9

1 (reference)

-

 Q2

19/64

22.9

1.46 (0.67–3.21)

NS

 Q3

30/66

31.3

2.24 (1.07–4.67)

0.032

 Q4

59/65

47.6

4.47 (2.24–8.94)

<0.001

Tabár + MTR

0.68 (0.62–0.73)

 Q1

13/65

16.7

1 (reference)

-

 Q2

22/65

25.3

1.69 (0.79–3.64)

NS

 Q3

24/65

27.0

1.85 (0.87–3.94)

NS

 Q4

62/64

49.2

4.84 (2.43–9.66)

<0.001

BI-RADS + MTR + Tabár

0.69 (0.63–0.74)

 Q1

12/64

15.8

1 (reference)

-

 Q2

16/66

19.5

1.29 (0.57–2.95)

NS

 Q3

28/65

30.1

2.30 (1.08–4.91)

0.032

 Q4

65/64

50.4

5.42 (2.67–10.98)

<0.001