| http://www.w3.org/ns/prov#value | - The distribution F of risk R in the population can be derived from the distribution of the covariates FX(x), (1) Because X includes continuous variables such as age, and length of the risk projection interval, we assume throughout that F is continuous, even though some results only require continuity at selected quantiles of F. From Gail and Pfeiffer (2005), we assume that the triplet (Yi, ??i,Xi)
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