Patient Matching, Aggregating and Linking

Project Background

Accurate patient matching and data aggregation supports patient safety and can support research aimed at improving health and well-being. The Patient Matching, Aggregation, and Linking (PMAL) project intended to study and advance methods of accurately linking and aggregating patient records from various sources to increase the volume and quality of data available to support patient-centered outcomes research (PCOR).

Project Dates

This project began in 2015 and ended in 2018.

Project Goal

The goal of this project was to identify and test standards applicable to linking patient data across multiple types of data sets (e.g., research, clinical, claims). This project also established a foundation for further testing and development of patient matching algorithms.

The project included pilot projects and other activities, such as prize challenges, to address four target areas:

  • Improvements to matching algorithms
  • Improvements to data quality
  • Expanded data sharing
  • Data standardization

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