A Novel Method for Classifying Body Mass Index on the Basis of Speech Signals for Future Clinical Applications: A Pilot Study

Table 5

Confusion matrix (also called contingency table or error matrix) of 6 models according to age and gender in classification experiments with feature selection.

		Classification model^a
Group	Actual	Predicted		Subjects^b
		Overweight	Normal	Overweight	Normal
Female: 20–30	Overweight	30	103	133	364
	Normal	27	337
Female: 40–50	Overweight	168	76	244	201
	Normal	98	103
Female: 60	Overweight	86	18	104	41
	Normal	26	15
Male: 20–30	Overweight	139	67	206	175
	Normal	84	91
Male: 40–50	Overweight	154	25	179	77
	Normal	48	29
Male: 60	Overweight	54	17	71	35
	Normal	20	15

^aResults of confusion matrix by classification model; ^bnumber of subjects of each class (overweight and normal) in original data.