Table 4. Model comparisons for 5 latent class estimations using 100 parametric bootstrapped likelihood ratio tests.

	Parametric boostrapped likelihood ratio test (2 times the Loglikelihood difference)	p
Number of latent classes
2 versus 1	257.60	<0.001
3 versus 2	144.49	<0.001
4 versus 3	84.36	<0.001
5 versus 4	60.27	<0.001