Fig. 5: Evaluation of SQL on FHIR views.

Approach used to evaluate the use of SQL on FHIR views for replicating the findings of the original study. The view definitions were executed using two different view runners (Pathling and Aidbox), producing two sets of intermediate views. Then the same SQL queries were executed against both sets of views, producing two sets of input variables. Finally, the same analysis pipeline was executed against both sets of input variables, producing two sets of results. The results were then compared to each other and to the original results.