Table 2. Fitting statistical results of the latent class model.

Model	K	AIC	BIC	aBIC	Entropy	LMR	BLRT
1-Class	33	133821.59	134038.84	133933.98	_	_	_
2-Class	67	115664.58	116105.65	115892.75	0.98	<0.001	<0.001
3-Class	101	111917.89	112582.79	112261.84	0.81	0.004	<0.001
4-Class	135	108715.27	109604.00	109175.02	0.85	<0.001	<0.001
5-Class	169	107787.39	108899.94	108362.92	0.83	<0.001	<0.001
6-Class	203	106947.17	108283.56	107638.49	0.83	0.241	<0.001
7-Class	237	106391.29	107951.50	107198.39	0.78	0.0341	<0.001

Abbreviations: AIC, Akaike information criterion; BIC, Bayesian information criterion; aBIC, adjusted Bayesian information criterion; LMR, Lo–Mendell–Rubin; BLRT, bootstrapped likelihood ratio test.