Statistics for a Diagnostic Model

Abstract
The model weights each com-plaint made by a patient on a questionnaire for each of the 60 diseases that are found most frequently in a general hospital. For each disease the weights are squared, summed, adjusted for age and normalized. Diagnostic assignments of patients made by a computer programmed with the model are generally as correct as those by a physician who interprets the same medical complaints. The model is justified on an analytic basis and on the basis of the model generating few false positives among many correct assignments.

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