Fig. 4From: Chronic Kidney Disease stratification using office visit records: Handling data imbalance via hierarchical meta-classificationTrue Positive Rates (TPR), with respect to CKD stages 3, 4 and 5, attained by the hierarchical meta-classifiers when trained on datasets obtained by gradually pruning the early years of patient history included in the training set, one year at a time. The X-axis indicates the years covered by each training set, while the Y-axis shows the true positive rate (also known as sensitivity)Back to article page