Fig. 12
From: A probabilistic model of bilateral lymphatic spread in head and neck cancer
Comparing the predicted (histograms) and observed (lines depicting beta posteriors) prevalence of midline extension for early (blue) and late (orange) T-category. While the prevalence is predicted correctly when marginalizing over T-category, the model cannot capture the degree of separation observed in the data. Since the tumor’s midline extension is virtually always part of the diagnosis and hence given when predicting a patient’s risk, we do not consider this discrepancy a major issue.
