Table 1

Goodness of fit of group-based trajectory analysis models

Model	Smallest group		BIC	AIC	APP
Model	N	%	BIC	AIC	APP
≤50 years
1-cluster model	31 797	100	−905 561	−905 509
2-cluster model	8234	26	−869 531	−869 432	0.94
3-cluster model	3331	10	−851 542	−851 397	0.92
4-cluster model	1490	5	−841 703	−841 510	0.89
5-cluster model	898	3	−835 396	−835 157	0.87
>50 years
1-cluster model	35 055	100	−869 200	−869 148
2-cluster model	9690	28	−836 174	−836 076	0.93
3-cluster model	3845	11	−819 600	−819 454	0.91
4-cluster model	1888	5	−809 601	−809 409	0.89
5-cluster model	999	3	−803 977	−803 738	0.87

The chosen models are shown in bold.
AIC, Akaike Information Criterion; APP, average posterior probability; BIC, Bayesian Information Criterion.