Method for linking de-identified patients using encrypted and unencrypted demographic and healthcare information from multiple data sources
US7668820B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 2005 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | May 23, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H10/60
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A longitudinal database of de-identified patient healthcare transaction data records linked by longitudinal linking tags (IDs) is provided. A new healthcare transaction data record, which may include alphanumeric identification code attributes, third party attributes and/or demographic attributes, is assigned an linking ID associated with a previous healthcare transaction data record based upon successful comparison of either a designated set of identification code attributes or a designated set of demographic attributes. The longitudinal data base is assembled by a matching process in which a new data record is compared level by level with previous healthcare transaction data records through a hierarchy of a first series of matching levels each defined by a designated set of alphanumeric identification code attributes and a second series of matching levels each defined by a designated set of attributes including demographic attributes and then assigned the ID associated with a successfully matched reference data record.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.