Using Bayesian statistics for modeling PTSD through Latent Growth Mixture Modeling: implementation and discussion

European Journal of Psychotraumatology
Sarah DepaoliMarit Sijbrandij

Abstract

After traumatic events, such as disaster, war trauma, and injuries including burns (which is the focus here), the risk to develop posttraumatic stress disorder (PTSD) is approximately 10% (Breslau & Davis, 1992). Latent Growth Mixture Modeling can be used to classify individuals into distinct groups exhibiting different patterns of PTSD (Galatzer-Levy, 2015). Currently, empirical evidence points to four distinct trajectories of PTSD patterns in those who have experienced burn trauma. These trajectories are labeled as: resilient, recovery, chronic, and delayed onset trajectories (e.g., Bonanno, 2004; Bonanno, Brewin, Kaniasty, & Greca, 2010; Maercker, Gäbler, O'Neil, Schützwohl, & Müller, 2013; Pietrzak et al., 2013). The delayed onset trajectory affects only a small group of individuals, that is, about 4-5% (O'Donnell, Elliott, Lau, & Creamer, 2007). In addition to its low frequency, the later onset of this trajectory may contribute to the fact that these individuals can be easily overlooked by professionals. In this special symposium on Estimating PTSD trajectories (Van de Schoot, 2015a), we illustrate how to properly identify this small group of individuals through the Bayesian estimation framework using previous knowledge th...Continue Reading

References

May 1, 1992·The American Journal of Psychiatry·N Breslau, G C Davis
May 23, 2006·Behaviour Research and Therapy·Meaghan L O'DonnellMark Creamer
Dec 25, 2013·Journal of Consulting and Clinical Psychology·Sarah Depaoli, Jonathan Boyajian
Mar 5, 2015·European Journal of Psychotraumatology·Isaac R Galatzer-Levy
Jan 1, 2010·Psychological Science in the Public Interest : a Journal of the American Psychological Society·George A BonannoAnnette M La Greca

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Citations

Mar 5, 2015·European Journal of Psychotraumatology·Isaac R Galatzer-Levy
Mar 5, 2015·European Journal of Psychotraumatology·Rens van de Schoot
Mar 5, 2015·European Journal of Psychotraumatology·Rens Van de Schoot
Nov 21, 2017·European Journal of Psychotraumatology·Rens van de SchootMiranda Olff
Jan 13, 2018·Multivariate Behavioral Research·Rens van de SchootNancy E van Loey
Sep 13, 2019·Behavior Research Methods·Daniel McNeish, Jeffrey Harring

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