Validity of deterministic record linkage using multiple indirect personal identifiers linking a large registry to claims data

Soko Setoguchi, Ying Zhu, Jessica J. Jalbert, Lauren A. Williams, Chih Ying Chen

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

Background-Linking patient registries with administrative databases can enhance the utility of the databases for epidemiological and comparative effectiveness research. However, registries often lack direct personal identifiers, and the validity of record linkage using multiple indirect personal identifiers is not well understood. Methods and Results-Using a large contemporary national cardiovascular device registry and 100% Medicare inpatient data, we linked hospitalization-level records. The main outcomes were the validity measures of several deterministic linkage rules using multiple indirect personal identifiers compared with rules using both direct and indirect personal identifiers. Linkage rules using 2 or 3 indirect, patient-level identifiers (ie, date of birth, sex, admission date) and hospital ID produced linkages with sensitivity of 95% and specificity of 98% compared with a gold standard linkage rule using a combination of both direct and indirect identifiers. Conclusions-Ours is the first large-scale study to validate the performance of deterministic linkage rules without direct personal identifiers. When linking hospitalization-level records in the absence of direct personal identifiers, provider information is necessary for successful linkage.

Original languageEnglish (US)
Pages (from-to)475-480
Number of pages6
JournalCirculation: Cardiovascular Quality and Outcomes
Volume7
Issue number3
DOIs
StatePublished - May 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

Keywords

  • Computerized
  • Databases
  • Factual
  • Information storage and retrieval
  • Insurance claim reporting
  • Medical record linkage
  • Medical records systems
  • Medicare
  • Registries

Fingerprint

Dive into the research topics of 'Validity of deterministic record linkage using multiple indirect personal identifiers linking a large registry to claims data'. Together they form a unique fingerprint.

Cite this