Figure 1.

Defining the evaluation dataset. Any patient with at least 1 visit within the evaluation window was included in the evaluation dataset (gold). All other patient records were added to the training dataset (blue). Visits that were after the evaluation window end were excluded from the evaluation dataset and from the training dataset for patients who did not have a confirmed death (light/transparent blue). A 9-month evaluation window was chosen as the timeframe as that resulted in an 80/20 split between the training dataset and the evaluation dataset.