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. 2017 Feb 20;7(1):31–39. doi: 10.5493/wjem.v7.i1.31

Table 3.

The cutoff point for the amount of poison consumption and patients’ death

Variable Area under the ROC (the minimum positive predictive value of 90%) Cutoff point Positive predictive value Negative predictive value Sensitivity Specificity
Amount of consumed poison 0.945 (0.87-1.0) 22.5 93.3 98.3 93.3 98.3

ROC: Receiver operating characteristic.