Validation of an indirect linkage algorithm to combine registry data with Medicare claims.

ABSTRACT:

Background

The linkage of registries to Medicare claims data can help extend follow-up for patients receiving medical devices. In the present study, we tested and validated an algorithm that does not require patient identifiers to link data from a national vascular registry and Medicare claims data.

Methods

We used data from the Vascular Quality Initiative (VQI), a registry capturing data from >600 centers for several different vascular procedures, and Medicare claims from 2003 to 2018. We restricted the study to patients aged ≥65 years who had fee-for-service entitlement at their procedure. We performed an indirect linkage to combine the VQI and Medicare data at the patient level using a sequential algorithm based on the patient's date of birth, sex, zip code, procedure dat

SUBMITTER: Mao J 

PROVIDER: S-EPMC9443721 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature