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. Author manuscript; available in PMC: 2011 Feb 1.
Published in final edited form as: Semin Oncol. 2010 Feb;37(1):31–38. doi: 10.1053/j.seminoncol.2009.12.004

Table 1. Risks from three models.

Discrimination is the same in each case despite very different risk predictions. Only model 1 is well calibrated.

Observed outcome Predicted risk of cancer from the model
Cancer No cancer Model 1 Model 2 Model 3
Risk group from model High risk 15 (60%) 10 (40%) 60% 99% 0.1%
Low risk 5 (14%) 30 (86%) 14% 98% 0.09%