Table 3 Calculation results of training and test accuracy of each age group.

Age group	Model	Group	Training set		Acc of training set (%)	Test set		Acc test set (%)
Age group	Model	Group	FRI	Non-FRI	Acc of training set (%)	FRI	Non-FRI	Acc test set (%)
Teenagers group	RF	FRI	644	59	92.58	162	18	91.88
	RF	Non-FRI	47	678	92.58	11	166	91.88
	BP	FRI	631	68	91.04	157	17	90.76
	BP	Non-FRI	60	669	91.04	16	167	90.76
	SVM	FRI	634	66	91.39	159	20	90.48
	SVM	Non-FRI	57	671	91.39	14	164	90.48
	XGBoost	FRI	646	49	93.42	163	16	92.72
	XGBoost	Non-FRI	45	688	93.42	10	168	92.72
	TSDPSO-SVM	FRI	659	24	96.08	169	12	95.52
	TSDPSO-SVM	Non-FRI	32	713	96.08	4	172	95.52
Middle-aged group	RF	FRI	1334	103	93.70	333	26	93.62
	RF	Non-FRI	79	1371	93.70	20	342	93.62
	BP	FRI	1331	110	93.35	329	29	92.65
	BP	Non-FRI	82	1364	93.35	24	339	92.65
	SVM	FRI	1328	123	92.80	328	24	93.20
	SVM	Non-FRI	85	1351	92.80	25	344	93.20
	XGBoost	FRI	1358	98	94.70	329	21	93.76
	XGBoost	Non-FRI	55	1376	94.70	24	347	93.76
	TSDPSO-SVM	FRI	1389	53	97.33	332	12	95.42
	TSDPSO-SVM	Non-FRI	24	1421	97.33	21	356	95.42
Elderly group	RF	FRI	1644	77	95.82	411	22	95.52
	RF	Non-FRI	61	1521	95.82	15	378	95.52
	BP	FRI	1619	94	94.55	400	25	93.83
	BP	Non-FRI	86	1504	94.55	26	375	93.83
	SVM	FRI	1611	97	94.22	401	29	93.46
	SVM	Non-FRI	94	1501	94.22	25	371	93.46
	XGBoost	FRI	1631	57	96.03	406	14	95.88
	XGBoost	Non-FRI	74	1541	96.03	20	386	95.88
	TSDPSO-SVM	FRI	1698	30	98.88	418	9	97.94
	TSDPSO-SVM	Non-FRI	7	1568	98.88	8	391	97.94

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