Prevalence and factors associated with trajectories of antenatal depression: a prospective multi-center cohort study in Chengdu, China

Table 1 Bayesian information criterion values of trajectory models limited to different number of groups

Groups in Trajectory Modeling, N	Bayesian information criterion	Log(2ΔBayesian information criterion)	Expected proportion of the number of people in each group to the total number of people (%)
Groups in Trajectory Modeling, N	Bayesian information criterion	Log(2ΔBayesian information criterion)	Group 1	Group 2	Group 3	Group 4
1	-8634.08		100.00
2	-8351.6	564.96	63.26	36.74
3	-8258.93	173.94	38.24	53.43	8.33
4	-8229.37	70.52	19.89	54.88	23.72	1.51^a

^aThe expected number of people accounts for less than 5% of the total number of people

ISSN: 1471-2393