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CMAJ • September 21, 1999; 161 (6)
© 1999 Canadian Medical Association or its licensors

Education
Éducation

Effectiveness of the Quick Medical Reference as a diagnostic tool

Jane B. Lemaire, MD, Jeffrey P. Schaefer, MD, Lee Ann Martin, MD, Peter Faris, MSc, Martha D. Ainslie, MD and Russell D. Hull, MB, MSc

From the Departments of Medicine and Community Health Sciences, University of Calgary, Calgary, Alta.

Abstract

A number of computer-based systems with diagnostic capabilities have been developed for internal medicine. Quick Medical Reference (QMR) is one such program. The authors describe key features of QMR and report on their study of its effectiveness as a diagnostic tool. They investigated how frequently the correct diagnosis would appear among the 5 highest ranked diagnoses generated by QMR. The charts of 1144 consecutive patients admitted to a teaching unit were retrospectively screened. Eligible cases included those referred for investigation of an undiagnosed illness with an objectively proven final diagnosis (n = 154). Two physicians familiar with, but not experts in, the use of QMR entered clinical information abstracted from the patients' charts into the program. Physician A obtained the correct diagnosis in 62 (40%) of the 154 cases, and physician B was successful in 56 (36%) of the cases. The authors use study cases to illustrate QMR's strengths and weaknesses.




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