File S1 - Combining Surveillance Systems: Effective Merging of U.S. Veteran and Military Health Data

This file contains Table S1-Table S3. Table S1, Diagnosis code classification for influenza-like-illness syndrome group analysis. Table S2, Diagnosis code classification for gastrointestinal syndrome group analysis. Table S3, Counts of Core-Based Statistical Areas (CBSAs) for Veterans Affairs (VA) and Department of Defense (DoD) medical facilities for three population scales. A. Distribution of CBSAs with VA and DoD facilities by population density. B. Comparison of number of patient visits between VA and DoD in each of the population scales by CBSAs which have both systems. (DOCX)