Table 3.

Results from the decision tree algorithm in the training and test set

Data set	Identified as gastric cancer		Identified as normal
	n	%	n	%
Training set
Gastric cancer (n = 45)	43	95.6 †	2	4.4
Normal (n = 50)	4	8.0	46	92.0 ‡
Test set
Gastric cancer (n = 82)	70	85.3 †	12	14.7
Normal (n = 50)	6	12.0	44	88.0 ‡
Benign lesion (n = 9)	3	33.3	6	66.7
Colorectal cancer (n = 9)	2	22.2	7	77.8

^† Sensitivity and

^{‡ ‡} specificity in training and test set.