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  Indian J Med Microbiol
 

Figure 2: ROC curve analysis for the ability of mean APD of SV before ejaculation to predict PE in all patients. The optimal mean APD of SV cutoff level as identified by the maximal Youden index was 9.25 mm for PE with modest sensitivity (61.4%) and specificity (77.3%). APD: anterior-posterior diameter; AUC: area under the curve; CI: confidence interval; PE: premature ejaculation; ROC: receiver operating characteristic; SV: seminal vesicle; Youden index: (sensitivity + specificity) − 1.

Figure 2: ROC curve analysis for the ability of mean APD of SV before ejaculation to predict PE in all patients. The optimal mean APD of SV cutoff level as identified by the maximal Youden index was 9.25 mm for PE with modest sensitivity (61.4%) and specificity (77.3%). APD: anterior-posterior diameter; AUC: area under the curve; CI: confidence interval; PE: premature ejaculation; ROC: receiver operating characteristic; SV: seminal vesicle; Youden index: (sensitivity + specificity) − 1.