1 MCQs in PSM for NEET PG
A study evaluates the diagnostic accuracy of a new biomarker for early detection of chronic kidney disease (CKD). Among 1000 subjects, 400 have confirmed CKD and 600 do not. The biomarker correctly identifies 340 of those with CKD and incorrectly identifies 90 of those without CKD as having the disease. What is the positive predictive value (PPV) of this biomarker?
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