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Positive Predictive Value (PPV) Curves
Time-dependent PPV curves comparing the predictive accuracy of the Cox model using traditional factors (age, stage, smoking, treatment) to predict survival compared (black) to the Cox model with the addition of high-risk HPV16 SNPs (red). Panel A depicts PPV curve for predicting 3-year overall survival; Panel B for predicting 5-year overall survival and Panel C for predicting 8-year overall survival.
