Figure 1
Probability of recurrence based on 5- and 10-year models in test cases. The vertical axis shows the probability of the 10-year recurrence prediction model and the horizontal axis shows the probability of the 5-year recurrence prediction model. For each model, probability > 0.50 is the cutoff for recurrence. First quadrant area shows recurrence risk of more than 50% by both prediction models; the patients are predicted to recur within 5 years. Second quadrant area shows recurrence risk of 50% or less by 5-year model and of more than 50% by 10-year model; the patients are predicted to recur between 5 and 10 years after surgery. Third quadrant area shows recurrence risk of 50% or less by both prediction models; the patients were predicted to be recurrence-free within 10 years after surgery. The color of the dots indicates status and time of recurrence in each test case. Group A (Red): the patients had recurrence within 5 years, Group B (yellow): the patients had recurrence between 5 and 10 years after surgery, Group C (gray): the patients had been recurrence-free during 5–10 years after surgery, and Group D (blue): the patients were recurrence-free more than 10 years after surgery.
