Table 3. Model fit statistics of the one- to four-class latent class analysis models.

# of classes	Log likelihood	Degree of freedom	BIC	AIC	LMRLR testing the null hypothesis	P-value for LMRLR
1	-4904.4	513	10657.6	10634.9	--	--
2	-4869.1	412	10629.7	10578.6	Class 1 vs Class 2	0.03
3	-4862.7	401	10657.7	10578.2	Class 2 vs Class 3	0.30
4	-4862.0	390	10672.0	10581.1	Class 3 vs Class 4	0.08

Note: Bold text signifies the selected model.

Abbreviations: BIC: Bayesian information criterion; AIC, Akaike information criterion; LMRLR, Lo-Mendell-Rubin Likelihood Ratio tests.