Table 3.

10-fold cross-validation of decision tree model of blood stasis pattern for 411 cases of UAP.

Algorithm	TN	FP	Sensitivity (%)	Specificity (%)	Accuracy (%)
	FN	TP
C4.5	123	46	77.7	72.8	75.7
	54	188
ADTree	128	41	75.6	75.7	75.7
	59	183
CHAID	132	37	70.7	78.1	73.7
	71	171
QUEST	60	109	93.4	35.5	69.6
	16	226

Note. Sensitivity = TP/(TP + FN); Specificity = TN/(TN+ FP); Accuracy = (TP + TN)/(TP + FP + TN + FN).