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Mammographic density as a risk factor for breast cancer in a German case-control study

 
: Heusinger, K.; Loehberg, C.R.; Haeberle, L.; Jud, S.M.; Klingsiek, P.; Hein, A.; Bayer, C.M.; Rauh, C.; Uder, M.; Cavallaro, A.; May, M.S.; Adamietz, B.; Schulz-Wendtland, R.; Wittenberg, T.; Wagner, F.; Beckmann, M.W.; Fasching, P.A.

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European journal of cancer prevention 20 (2011), No.1, pp.1-8
ISSN: 0959-8278
ISSN: 1473-5709
English
Journal Article
Fraunhofer IIS ()

Abstract
Mammographic percent density (MD) is recognized as one of the strongest risk factors associated with breast cancer. This matched case-control study investigated whether MD represents an independent risk factor. Mammograms were obtained from 1025 breast cancer patients and from 520 healthy controls. MD was measured using a quantitative computer-based threshold method (0-100%). Breast cancer patients had a higher MD than healthy controls (38 vs. 32%, P < 0.01). MD was significantly higher in association with factors such as age over 60 years, body mass index (BMI) of 25-30 kg/m(2), nulliparity or low parity (one to two births). Average MD was inversely associated with age, BMI, parity and positively associated with age at first full-term pregnancy. MD was higher in women with at least one first-degree relative affected, but only among patients and not in the group of healthy controls (P < 0.01/P = 0.61). In women with an MD of 25% or more, the risk of breast cancer was doubled compared with women with an MD of less than 10% (odds ratio: 2.1; 95% confidence interval: 1.3-3.4; P < 0.01); in the postmenopausal subgroup, the risk was nearly tripled (odds ratio: 2.7; 95% confidence interval: 1.6-4.7; P < 0.001). This study provides further evidence that MD is an important risk factor for breast cancer. These results indicate strong associations between MD and the risk of breast cancer in a matched case-control study in Germany. European Journal of Cancer Prevention 20:1-8

: http://publica.fraunhofer.de/documents/N-156680.html