The 'Re-Identification' of Governor William Weld's Medical Information: A Critical Re-Examination of Health Data Identification Risks and Privacy Protections, Then and Now

This paper by Daniel C. Barth-Jones of Columbia University critically examines the historic Weld re-identification and the dramatic reductions of re-identification risks for de-identified health data as they have been protected by the HIPAA Privacy Rule provisions for de-identification since 2003. The paper also provides recommendations for enhancements to existing HIPAA de-identification policy; discusses critical advances routinely made in medical science and improvement of our healthcare system using de-identified data, and provides commentary on the vital importance of properly balancing the competing goals of protecting patient privacy and preserving the accuracy of scientific research and statistical analyses conducted with de-identified data.

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