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  1. Potential effect of authorization bias on medical record research.

    Article - En anglais


    To analyze the influence of recent changes in Minnesota statutes that generally require prior authorization for use of medical records for research from patients who received medical care after Jan. 1,1997.

    Material and Methods 

    In this Mayo Clinic Institutional Review Board-approved study, we obtained a stratified random sample of patients encountered at Mayo Clinic Rochester during the period 1994 through 1996 and estimated the proportion willing to provide the general authorization.

    On the basis of data from administrative files, we then compared demographic, diagnostic, and utilization characteristics for patients who provided authorization and those who did not.


    Overall, 3.2% (95% confidence interval, 2.4 to 4.0%) of the study subjects declined authorization.

    If patients not responding to requests for authorization were also considered to have refused, the overall refusal rate would be 20.7% (95% confidence interval, 18.5 to 22.9%). Women were somewhat more likely to refuse authorization than were men (4.0% versus 2.4% ; P=0.067), and patients younger than 60 years were more likely to refuse than were older patients (5.4% versus 1.2% ; P<0.001).

    Patients residing more than 120 miles from Rochester were much less likely to decline authorization than were local residents (2.1% versus 5.8% ; P=0.001). (...)

    Mots-clés Pascal : Minnesota, Etats Unis, Amérique du Nord, Amérique, Homme, Système santé, Législation, Autorisation, Utilisation, Dossier médical, Résultat, Recherche scientifique, Relation médecin malade, Interprétation

    Mots-clés Pascal anglais : Minnesota, United States, North America, America, Human, Health system, Legislation, Licence procedure, Use, Medical record, Result, Scientific research, Physician patient relation, Interpretation

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0236212

    Code Inist : 002B30A09. Création : 16/11/1999.