Journal of the National Cancer Institute Advance Access originally published online on April 29, 2008
JNCI Journal of the National Cancer Institute 2008 100(9):683-684; doi:10.1093/jnci/djn106
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© The Author 2008. Published by Oxford University Press.
CORRESPONDENCE |
Re: Projecting Individualized Absolute Invasive Breast Cancer Risk in African American Women
Correspondence to: Beverly Rockhill Levine, PhD, Department of Public Health Education, 437K HHP Bldg, University of North Carolina, Greensboro, Greensboro, NC 27403 (e-mail: bjlevine@uncg.edu).
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In their "Discussion," Gail et al. (1) seem to be saying that a problem with a model's concordance statistic (or area under a receiver operating curve [AUC]) is that it is inherently retrospective, implying that one should therefore not place much stock in it. The concordance statistic from the Gail model is retrospective in the same sense that the Gail model's parameter estimates (which produce the estimated
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J Natl Cancer Inst 2008 100: 684.