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

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

 2 classes3 classes4 classesa5 classes6 classes7 classes
BIC90,75989,98589,61289,39189,22889,089
P from LMR< 0.001< 0.0010.0100.3000.2760.240
P from BLRT< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001
Entropy0.8540.8070.7830.7790.7670.760
Percentage in class 152.738.631.130.026.724.2
Percentage in class 247.335.526.123.022.916.3
Percentage in class 3 25.924.517.313.414.5
Percentage in class 4  18.315.713.112.1
Percentage in class 5   14.012.612.1
Percentage in class 6    11.410.9
Percentage in class 7     9.8
  1. BIC Bayesian information criterion, BLRT bootstrap likelihood ratio test, LMR Lo-Mendell-Rubin adjusted likelihood ratio test
  2. a Selected class solution is bolded