Table 3.

The relative risks and negative predictive values delivered by the DT models with different levels of sensitivity.

Model sensitivity	TP	TN	FP	FN	Relative risk	NPV
85%	12,820	38,012	30,220	2175	5.50	94.59%
90%	13,593	33,279	34,953	1402	6.93	95.96%
95%	14,360	2,5145	43,087	635	10.15	97.54%

TP true positive, TN true negative, FP false positive, FN false negative, NPV negative predictive value.

Definitions: Relative risk = (TP/(TP + FP))/(FN/(TN + FN)); NPV = TN/(TN + FN).