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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.