Longitudinal trajectories of comorbid PTSD and depression symptoms among U.S. service members and veterans

BMC Psychiatry

Table 1 Model Fit and Selection Criteria for 2 to 7 Latent Classes for Comorbid Posttraumatic Stress Disorder and Major Depressive Disorder

	2 classes	3 classes	4 classes^a	5 classes	6 classes	7 classes
BIC	90,759	89,985	89,612	89,391	89,228	89,089
P from LMR	< 0.001	< 0.001	0.010	0.300	0.276	0.240
P from BLRT	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
Entropy	0.854	0.807	0.783	0.779	0.767	0.760
Percentage in class 1	52.7	38.6	31.1	30.0	26.7	24.2
Percentage in class 2	47.3	35.5	26.1	23.0	22.9	16.3
Percentage in class 3		25.9	24.5	17.3	13.4	14.5
Percentage in class 4			18.3	15.7	13.1	12.1
Percentage in class 5				14.0	12.6	12.1
Percentage in class 6					11.4	10.9
Percentage in class 7						9.8

BIC Bayesian information criterion, BLRT bootstrap likelihood ratio test, LMR Lo-Mendell-Rubin adjusted likelihood ratio test
^a Selected class solution is bolded

ISSN: 1471-244X