Geographic Distribution of Randomized Patients Across the US
Residential locations of 13 523 included patients were graphically rendered using the geographic information system data extracted from the VA Cooperative Data Warehouse (CDW). The CDW is a centralized repository to combine and store EHR data generated from all VA health care facilities. Dots correspond to participants residing in urban (dark shading) vs rural and highly rural (light shading) locations, but respectively do not infer density.