title: Epidemiologic critique of the report on adverse reactions to ionic and nonionic media by the Japanese Committee on the Safety of Contrast Media.
abstract: The author takes a critical look at the findings of the Katayama study of adverse reactions to ionic and nonionic contrast media. The author suggests that although the relative risks appear to be large and favor the use of nonionic media, serious adverse reactions were infrequent with both media types and risks were small on an absolute scale. In addition, the study demonstrates the potential for several serious information and selection biases. The accuracy of risk estimates are therefore called into question. Nevertheless, this study is extremely important in clarifying the risks associated with ionic and nonionic media during venography.
authors.affiliation: Department of Health Science, San Jose State University, CA 95192-0052.
authors.forename: B B
authors.initials: BB
authors.lastname: Gerstman
mesh_terms: D003287:Contrast Media / Q000009:adverse effects*; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D016017:Odds Ratio; D011358:Product Surveillance, Postmarketing; D012107:Research Design; D012306:Risk; D015983:Selection Bias
chemical_list: D003287:Contrast Media