Prostate-Specific Antigen Density (PSAD) results for patients are used to predict prostate cancer. Usually a cut-off value

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Prostate-Specific Antigen Density (PSAD) results for patients are used to predict prostate cancer. Usually a cut-off value of greater than 0.14 is used for prediction.

Biopsy results were used to detect the presence of prostate cancer. Table 12-17 shows the biopsy results and predictions based on PSAD values for 60 patients. Find the following performance measures on prediction.

(a) Sensitivity, specificity, accuracy.

(b) Positive predictive value, negative predictive value.

(c) Relative risk, odds ratio.

(d) Likelihood ratio, attributable risk.

(e) False positive and false negative rates. Would you place equal importance to these results? Discuss. image text in transcribed

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