In this article (Cancer Epidemiol Biomarkers Prev 2010;19:3096–105), which was published in the December 2010 issue of Cancer Epidemiology, Biomarkers & Prevention (1), the publisher regrets that because of a printing error, some of the data in Table 2 are incorrect. The correct version of Table 2 is found below.
Table 2.
Percent density: distribution of breast cancer risk factors by quintiles of threshold and volumetric methods
. | Threshold method, percent density . | Volumetric method, percent density . | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
. | 1 . | 2 . | 3 . | 4 . | 5 . | Ptrend . | 1 . | 2 . | 3 . | 4 . | 5 . | Ptrend . |
. | (N = 74) . | (N = 74) . | (N = 74) . | (N = 74) . | (N = 74) . | . | (N = 74) . | (N = 74) . | (N = 74) . | (N = 74) . | (N = 74) . | . |
Age at examination, y (mean) | 55.6 | 54.0 | 54.3 | 53.8 | 51.9 | <0.001 | 56.2 | 54.1 | 54.0 | 53.0 | 52.4 | <0.001 |
BMI, kg/m2 (mean) | 29.3 | 26.4 | 25.7 | 24.0 | 22.3 | <0.001 | 27.2 | 28.4 | 25.4 | 23.9 | 22.9 | <0.001 |
Age menarche, y (mean) | 12.7 | 13.1 | 13.5 | 12.9 | 13.5 | 0.02 | 12.7 | 13.3 | 13.2 | 13.2 | 13.3 | 0.09 |
Nulliparous, % | 12.2 | 16.2 | 25.8 | 26.3 | 28.2 | 0.03 | 8.1 | 8.9 | 27.0 | 21.6 | 31.1 | 0.001 |
Number of children (median) | 1.8 | 1.8 | 1.5 | 1.8 | 1.6 | 0.19 | 1.9 | 1.7 | 1.7 | 1.8 | 1.4 | 0.04 |
Age first delivery,a y (mean) | 24.5 | 24.9 | 25.8 | 26.3 | 28.2 | <0.001 | 24.4 | 24.9 | 26.1 | 26.5 | 28.1 | <0.001 |
Postmenopausal, % | 63.5 | 56.8 | 55.4 | 47.3 | 31.1 | <0.001 | 66.2 | 58.1 | 50.0 | 44.6 | 35.1 | <0.001 |
Age menopause,b y (mean) | 47.9 | 49.3 | 47.1 | 49.0 | 48.9 | 0.65 | 48.4 | 48.4 | 47.8 | 48.9 | 48.3 | 0.89 |
Ever HT use, % | 36.1 | 25.7 | 39.2 | 28.4 | 26.0 | 0.31 | 39.2 | 26.4 | 29.7 | 28.4 | 31.5 | 0.43 |
Ever pill use, % | 87.7 | 91.9 | 90.5 | 83.8 | 89.2 | 0.66 | 91.9 | 89.0 | 89.2 | 86.5 | 86.5 | 0.25 |
First-degree family history breast cancer, % | 13.5 | 21.6 | 18.9 | 13.5 | 14.9 | 0.69 | 16.2 | 20.3 | 16.2 | 10.8 | 18.9 | 0.77 |
. | Threshold method, percent density . | Volumetric method, percent density . | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
. | 1 . | 2 . | 3 . | 4 . | 5 . | Ptrend . | 1 . | 2 . | 3 . | 4 . | 5 . | Ptrend . |
. | (N = 74) . | (N = 74) . | (N = 74) . | (N = 74) . | (N = 74) . | . | (N = 74) . | (N = 74) . | (N = 74) . | (N = 74) . | (N = 74) . | . |
Age at examination, y (mean) | 55.6 | 54.0 | 54.3 | 53.8 | 51.9 | <0.001 | 56.2 | 54.1 | 54.0 | 53.0 | 52.4 | <0.001 |
BMI, kg/m2 (mean) | 29.3 | 26.4 | 25.7 | 24.0 | 22.3 | <0.001 | 27.2 | 28.4 | 25.4 | 23.9 | 22.9 | <0.001 |
Age menarche, y (mean) | 12.7 | 13.1 | 13.5 | 12.9 | 13.5 | 0.02 | 12.7 | 13.3 | 13.2 | 13.2 | 13.3 | 0.09 |
Nulliparous, % | 12.2 | 16.2 | 25.8 | 26.3 | 28.2 | 0.03 | 8.1 | 8.9 | 27.0 | 21.6 | 31.1 | 0.001 |
Number of children (median) | 1.8 | 1.8 | 1.5 | 1.8 | 1.6 | 0.19 | 1.9 | 1.7 | 1.7 | 1.8 | 1.4 | 0.04 |
Age first delivery,a y (mean) | 24.5 | 24.9 | 25.8 | 26.3 | 28.2 | <0.001 | 24.4 | 24.9 | 26.1 | 26.5 | 28.1 | <0.001 |
Postmenopausal, % | 63.5 | 56.8 | 55.4 | 47.3 | 31.1 | <0.001 | 66.2 | 58.1 | 50.0 | 44.6 | 35.1 | <0.001 |
Age menopause,b y (mean) | 47.9 | 49.3 | 47.1 | 49.0 | 48.9 | 0.65 | 48.4 | 48.4 | 47.8 | 48.9 | 48.3 | 0.89 |
Ever HT use, % | 36.1 | 25.7 | 39.2 | 28.4 | 26.0 | 0.31 | 39.2 | 26.4 | 29.7 | 28.4 | 31.5 | 0.43 |
Ever pill use, % | 87.7 | 91.9 | 90.5 | 83.8 | 89.2 | 0.66 | 91.9 | 89.0 | 89.2 | 86.5 | 86.5 | 0.25 |
First-degree family history breast cancer, % | 13.5 | 21.6 | 18.9 | 13.5 | 14.9 | 0.69 | 16.2 | 20.3 | 16.2 | 10.8 | 18.9 | 0.77 |
aParous women only.
bPostmenopausal women only.
References
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Lokate
M
, Kallenberg
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, Van den Bosch
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, Peeters
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. Volumetric breast density from full-field digital mammograms and its association with breast cancer risk factors: a comparison with a threshold method
. Cancer Epidemiol Biomarkers Prev
2010
;19
:3096
–105
.Published OnlineFirst July 22, 2011. ©2011 American Association for Cancer Research.
2011