The threat to medical-records research.

The potential for misuse of personal information by insurers and employers has heightened concern about the confidentiality of medical records. Despite the absence of documented abuses related to approved research projects,1 legislation has been passed in Minnesota that restricts access to medical records for research purposes, and similar measures are proposed in some federal legislation. Such restrictions pose an obvious threat to patient-oriented investigations, such as observational outcome studies, that are based on existing medical-records data and require personal identifiers to link initial interventions with ultimate results. Clinicians and patients alike mostly take for granted the availability of this information, . . .

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