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Phlebotomy Essentials
Phlebotomy Essentials
6th Edition
ISBN:9781451194524
Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Chapter1: Phlebotomy: Past And Present And The Healthcare Setting
Section: Chapter Questions
Problem 1SRQ
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Please calculate sensitivity, specificity, positive predictive value, negative predictive value, Youden index. 1, A doctor conducted a diagnostic test of plasma oxidized low-density lipoprotein (Ox-LDL) on 200 patients with coronary heart disease and 300 normal people, and coronary angiography was the "gold standard". Ox-LDL level >45.8U/L was regarded as the positive cut-off value for diagnosis. The results are shown in the table below. Table 1 Ox-LDL diagnostic test results of 200 patients with coronary heart disease and 300 normal people coronary angiography Diagnosed Ox-LDL level (>45. 8U/L) coronary heart total normal disease 150 100 250 50 200 250 total 200 300 500 Please calculate sensitivity, specificity, positive predictive value, negative predictive value, Youden index.
Transcribed Image Text:Please calculate sensitivity, specificity, positive predictive value, negative predictive value, Youden index. 1, A doctor conducted a diagnostic test of plasma oxidized low-density lipoprotein (Ox-LDL) on 200 patients with coronary heart disease and 300 normal people, and coronary angiography was the "gold standard". Ox-LDL level >45.8U/L was regarded as the positive cut-off value for diagnosis. The results are shown in the table below. Table 1 Ox-LDL diagnostic test results of 200 patients with coronary heart disease and 300 normal people coronary angiography Diagnosed Ox-LDL level (>45. 8U/L) coronary heart total normal disease 150 100 250 50 200 250 total 200 300 500 Please calculate sensitivity, specificity, positive predictive value, negative predictive value, Youden index.
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