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Table 4 Association between BMI, menopausal status and DM-Scan estimates of density and subsequent development of breast cancer

From: Validation of DM-Scan, a computer-assisted tool to assess mammographic density in full-field digital mammograms

Variable

Controls

Cases

   

(n=119)

(n=112)

ORa

95% CIa

P-valuea

Age: Mean (95% CI)

57 (55-58 )

Mean 58 (57-59 )

  

0.165 b

Menopausal status

     

 Posmenopausal

89 (75%)

83 (74%)

1.00

  

 Premenopausal

30 (25%)

29 (26%)

1.87

0.80-4.38

0.152

BMI

     

 <25

46 (39%)

40 (36%)

1.00

  

 25-29.9

52 (44%)

50 (45%)

1.15

0.63-2.10

0.655

 >=30

21 (18%)

22 (20%)

1.39

0.61-3.12

0.429

Dm-Scan PD estimates

     

Mean (95% CI)

19% ( 17%-22% )

24% (21%-27%)

  

0.035 b

 <7%

30 (25%)

19 (17%)

1.00

  

 7%-17%

30 (25%)

21 (19%)

1.32

0.59-2.99

0.501

 17%-28%

29 (24%)

32 (29%)

2.28

1.03-5.04

0.042

 >=29%

30 (25%)

40 (36%)

3.10

1.35-7.14

0.008

 Per 10% increase

  

1.33

1.09-1.62

0.005

  1. a Odds Ratio, 95% Confidence Intervals and P-values from a logistic.
  2. b P-value of t-test, comparing cases and controls.
  3. c Percentage of Density using DM-Scan.
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