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Table 2: 
ROC plot analysis for ADC values differentiating an aggressive tumor from a nonaggressive tumora
Aggressive Tumor
AUC (95% CI)0.983 (0.911–1.000) (P = .002)
Cutoff ADC value (×10−3 × mm2/s)1.494
Sensitivity1.000 (0.541–1.000)
Specificity0.900 (0.555–0.998)
Accuracy0.938 (0.698–0.998)
PPV0.857 (0.421–0.996)
NPV1.000 (0.664–1.000)
Positive LR10 (1.56–64.2)
Negative LR0
  • Note:—ROC indicates receiver operating characteristic; AUC, area under the curve; LR, likelihood ratio; NA, not available; NPV, negative predictive value; PPV, positive predictive value.
  • ↵a Numbers in parentheses indicate 95% confidence intervals.