V3 2021 Files: MarketScan Database

THE DATA ON THIS PAGE SHOULD NOW ONLY BE USED TO FINISH UP EXISTING PROJECTS. NO NEW PROJECTS SHOULD BE STARTED WITH THIS COPY OF THE DATA.

We had to delete V3 of MarketScan because of some unusual circumstances with the formats of some of the files we were sent (to prevent the duplication of records). V3.1 contains all of the info that was in V3, however V3.1 has 2022 data & a slightly different version of the 2021 data. The data on this page is the version of the 2021 data that was in V3. Our purpose in posting this is to enable researchers who completed analyses on V3 to replicate their work by combining the data here with the data on the main page.

FOR THE MAJORITY OF RESEARCHERS, however, we strongly recommend using V3.1, and ignoring this page, as it will be irrelevant for most research going forward. (Rule of thumb: If you are unsure whether you need the data on this page, then you probably don't need it.)