PREDICTIVE VALUE AND INFORMATIONAL VALUE OF DIAGNOSTIC-TEST RESULTS

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JOHNSON, HA
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R446 [实验室诊断]; R-33 [实验医学、医学实验];
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1001 ;
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If clinical quality assurance and cost-effectiveness of diagnostic testing are to be measured, some sort of measurement of the clinical value of a test result is needed. The predictive value of a test result is not a real measure of its clinical value, and, particularly when used in the later stages of a diagnostic workup, it can be misleading. Using the same data that go into a calculation of predictive value, the clinical value can be determined according to the amount of useful information that is provided by a test result. Cost-effectiveness can be expressed as dollars per bit of diagnostic information.
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页码:159 / 164
页数:6
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