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Medical risk factors for Creutzfeldt-Jakob disease (CJD) were analyzed in a prospective ongoing case-control study based on European CJD surveillance. Detailed data on past and recent medical history were analyzed in 405 cases and controls matched by sex, age, and hospital. Data were correlated with polymorphism at codon 129 of the prion protein gene. Our analysis did not support a number of previously reported associations and failed to identify any common medical risk factor for CJD. Although not statistically significant, brain surgery was associated with an increased risk of CJD. A detailed medical history should be obtained in every suspected CJD case in order to identify iatrogenic sources of CJD.


Journal article


J Clin Epidemiol

Publication Date





747 - 754


Adult, Aged, Case-Control Studies, Creutzfeldt-Jakob Syndrome, Electromyography, Europe, Humans, Middle Aged, Neurosurgical Procedures, Odds Ratio, Polymorphism, Genetic, Population Surveillance, Prions, Risk Factors