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Scott AW, Cornelius T, Schwartz JE, Fray N, Kronish IM, Edmondson D. Posttraumatic stress disorder (PTSD) in a sample of patients evaluated for acute coronary syndrome: A factor analysis of the PTSD checklist for DSM-5 (PCL-5). J Affect Disord 2024:S0165-0327(24)01669-0. [PMID: 39374739 DOI: 10.1016/j.jad.2024.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 09/28/2024] [Accepted: 10/02/2024] [Indexed: 10/09/2024]
Abstract
The PCL-5 is a psychometrically sound measure of Post-Traumatic Stress Disorder (PTSD) symptoms. Although the scale is commonly applied to past external traumas (e.g., combat, assault), PTSD symptoms have also been assessed about potentially life-threatening cardiovascular events that represent ongoing internal threats. To date, there is a paucity of studies that have examined the updated scale factor structure for PTSD in patients with suspected acute coronary syndromes (ACS). METHODS Exploratory and confirmatory factor analyses (EFA, CFA) were conducted using PCL-5 data completed by 830 patients enrolled in the REactions to Acute Care and Hospitalization (REACH) study, an observational cohort study of patients recruited from the emergency department during evaluation for ACS. Follow-up measurement invariance tests were conducted on pre-selected models and on the best-fitting model identified by EFA to evaluate invariance across diagnosis (confirmed v. rule-out ACS), sex, and language. RESULTS The EFA identified a two-factor model with "Memories of Trauma" (MT) and "Cognitive Behavioral Symptoms" (CBS) factors offering a balanced fit and interpretability. In CFAs, the Anhedonia CFA model performed the best overall. Measurement invariance tests supported strong invariance across confirmed and ruled-out ACS, male and female sex, and English and Spanish language for all models. LIMITATIONS Only 34 % of the sample was diagnosed with ACS at discharge, which limits generalizability. CONCLUSION Our study contributes to the understanding of PTSD in the context of internal traumatic reminders and may guide future research and clinical practice by informing intervention targets to improve health and well-being after suspected ACS.
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Affiliation(s)
- Allie W Scott
- Center for Behavioral Cardiovascular Health, Department of Medicine, Columbia University Medical Center, New York, NY 10032, United States of America.
| | - Talea Cornelius
- Center for Behavioral Cardiovascular Health, Department of Medicine, Columbia University Medical Center, New York, NY 10032, United States of America
| | - Joseph E Schwartz
- Center for Behavioral Cardiovascular Health, Department of Medicine, Columbia University Medical Center, New York, NY 10032, United States of America
| | - Nakesha Fray
- Center for Behavioral Cardiovascular Health, Department of Medicine, Columbia University Medical Center, New York, NY 10032, United States of America
| | - Ian M Kronish
- Center for Behavioral Cardiovascular Health, Department of Medicine, Columbia University Medical Center, New York, NY 10032, United States of America
| | - Donald Edmondson
- Center for Behavioral Cardiovascular Health, Department of Medicine, Columbia University Medical Center, New York, NY 10032, United States of America
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Scheeringa MS. Is factor analysis useful for revising diagnostic criteria for PTSD? A systematic review of five issues ten years after DSM-5. J Psychiatr Res 2024; 176:98-107. [PMID: 38850584 DOI: 10.1016/j.jpsychires.2024.05.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 06/10/2024]
Abstract
BACKGROUND Based on factor analysis research, DSM-5 revised the diagnostic criteria for posttraumatic stress disorder (PTSD) by increasing symptom clusters from three to four. AIMS To question whether that is an appropriate use of factor analysis. METHODS Reviewed the literature on five issues of factor analysis relevant to diagnostic criteria: (1) discovery of factors identical to symptom clusters, (2) consensus about the number of factors in best-fitting models, (3) configural variance between subpopulations to explain inconsistent model results, (4) methods to externally validate factors after discovery, and (5) treatment response of symptom clusters to externally validate factors. Two hundred four articles using DSM-IV or DSM-5 symptoms were included. RESULTS Two of four DSM-5 clusters were discovered with exploratory factor analysis. Support for a best-fitting model was inconsistent. Models with the highest number of factors were the best mathematical fit 87% of the time. Subpopulations did not reveal a pattern of configural variance to explain inconsistent findings. External validation of factors relied entirely on questionnaires. A review of 143 randomized controlled trials did not reveal differential treatment response of any symptom cluster. CONCLUSION Findings did not support the usefulness of factor analysis because the findings are too disparate to be helpful.
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Affiliation(s)
- Michael S Scheeringa
- Adjunct, Tulane University School of Medicine, Department of Psychiatry and Behavioral Sciences, New Orleans, LA, USA.
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3
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Robles TF, Rünger D, Sumner JA, Elashoff D, Shetty V. Salivary inflammatory biomarkers as a predictor of post-traumatic stress disorder and depressive symptom severity in trauma patients: A prospective study. Brain Behav Immun 2024; 119:792-800. [PMID: 38714269 DOI: 10.1016/j.bbi.2024.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 04/24/2024] [Accepted: 05/04/2024] [Indexed: 05/09/2024] Open
Abstract
BACKGROUND Although post-traumatic stress disorder (PTSD) and depression screening are recommended for traumatic injury patients, routine screening is still uncommon. Salivary inflammatory biomarkers have biological plausibility and potential feasibility and acceptability for screening. This study tested prospective associations between several salivary inflammatory biomarkers (proinflammatory cytokines interleukin-1β, interleukin-6, tumor necrosis factor-α; and C-reactive protein), collected during hospitalization and PTSD and depressive symptoms at 5-month follow-up. METHODS Adult traumatic injury patients (N = 696) at a major urban Level 1 trauma center provided salivary samples and completed PTSD and depressive symptom measures during days 0-13 of inpatient hospitalization. At 5-month follow-up, 368 patients (77 % male, 23 % female) completed the Clinician-Administered PTSD Scale for DSM-IV and the Self-rated Inventory of Depressive Symptomatology. Analyses focused on a latent inflammatory cytokine factor and C-reactive protein at baseline predicting 5-month PTSD and depression symptom outcomes and included baseline symptom levels as covariates. RESULTS A latent factor representing proinflammatory cytokines was not related to 5-month PTSD or depressive symptom severity. Higher salivary CRP was related to greater PTSD symptom severity (β = .10, p = .03) at 5-month follow-up and more severity in the following depressive symptoms: changes in weight and appetite, bodily complaints, and constipation/diarrhea (β's from .14 to .16, p's from .004 -.03). CONCLUSION In a primarily Latine and Black trauma patient sample, salivary CRP measured after traumatic injury was related to greater PTSD symptom severity and severity in several depressive symptom clusters. Our preliminary findings suggest that salivary or systemic CRP may be useful to include in models predicting post-trauma psychopathology.
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Affiliation(s)
- Theodore F Robles
- Department of Psychology, University of California, Los Angeles, United States.
| | - Dennis Rünger
- Department of Medicine Statistics Core, David Geffen School of Medicine at University of California, Los Angeles, United States
| | - Jennifer A Sumner
- Department of Psychology, University of California, Los Angeles, United States
| | - David Elashoff
- Department of Medicine Statistics Core, David Geffen School of Medicine at University of California, Los Angeles, United States
| | - Vivek Shetty
- School of Dentistry, University of California, Los Angeles, United States
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Puhalla A, Sullivan C, Chard K, Dickstein B, Hoge CW. An examination of the potential core symptoms of posttraumatic stress disorder: What is integral after removing general psychopathology & distress? J Psychiatr Res 2024; 174:46-53. [PMID: 38613942 DOI: 10.1016/j.jpsychires.2024.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 03/28/2024] [Accepted: 04/03/2024] [Indexed: 04/15/2024]
Abstract
Many confirmatory factor analyses (CFA) have examined the structure of posttraumatic stress disorder (PTSD) with some suggesting increased complexity (i.e., 6+ factors), while others suggesting a more refined structure (i.e., 2-factors). These competing PTSD structures may be due to conflation of non-trauma specific symptoms that have been added overtime. However, none of these studies examined if all symptoms being examined are specific to PTSD or potentially more related to general distress and psychopathology. The current study re-evaluated the structure of PTSD using bifactor exploratory factor analysis (EFA) to identify the construct's core symptoms. Data for EFA models were taken from a sample of Veterans (N = 694) attending outpatient therapy for PTSD and were cross-validated using CFA in a sample of 297 Veterans attending residential treatment. Clinician Administered PTSD Scale for DSM-5 (CAPS-5) at pre-treatment was used across sample. Factor analyses resulted in a 2-factor, bifactor model comprised of eight total items. Model fit was robust, RMSEA = 0 [0.000, 0.036]; robust CFI = 1; robust TLI = 1.017. The bifactor analytic approach captured what might be the core structure of PTSD, which were pathognomonic symptoms of PTSD (Factor one). A distinct second factor related to depression was also found. In identifying this structure, the model eliminates redundancies and lesser performing items and differentiates depressive reactions as potentially distinct and separate. Overall, these findings may assist in future research of PTSD by determining the unique elements of the construct within a veteran sample versus associated features, general psychological distress, and comorbid psychopathology.
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Affiliation(s)
- Alexander Puhalla
- Department of Education & Research, Coatesville VA Medical Center, Coatesville, PA, USA.
| | - Connor Sullivan
- Sheps Center for Health Services Research, University of North Carolina, Chapel Hill, NC, USA
| | - Kathleen Chard
- Trauma Recovery Center Cincinnati VA Medical Center, Cincinnati, OH, USA; University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Benjamin Dickstein
- Trauma Recovery Center Cincinnati VA Medical Center, Cincinnati, OH, USA
| | - Charles W Hoge
- Walter Reed Army Institute of Research, Silver Spring, MD, USA
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Granger SJ, May V, Hammack SE, Akman E, Jobson SA, Olson EA, Pernia CD, Daskalakis NP, Ravichandran C, Carlezon WA, Ressler KJ, Rauch SL, Rosso IM. Circulating PACAP levels are associated with altered imaging measures of entorhinal cortex neurite density in posttraumatic stress disorder. Eur J Psychotraumatol 2024; 15:2335793. [PMID: 38590134 PMCID: PMC11005872 DOI: 10.1080/20008066.2024.2335793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 03/18/2024] [Indexed: 04/10/2024] Open
Abstract
Introduction: Pituitary adenylate cyclase-activating polypeptide (PACAP) regulates plasticity in brain systems underlying arousal and memory and is associated with posttraumatic stress disorder (PTSD). Research in animal models suggests that PACAP modulates entorhinal cortex (EC) input to the hippocampus, contributing to impaired contextual fear conditioning. In PTSD, PACAP is associated with higher activity of the amygdala to threat stimuli and lower functional connectivity of the amygdala and hippocampus. However, PACAP-affiliated structural alterations of these regions have not been investigated in PTSD. Here, we examined whether peripheral PACAP levels were associated with neuronal morphology of the amygdala and hippocampus (primary analyses), and EC (secondary) using Neurite Orientation Dispersion and Density Imaging.Methods: Sixty-four (44 female) adults (19 to 54 years old) with DSM-5 Criterion A trauma exposure completed the Clinician-Administered PTSD Scale (CAPS-5), a blood draw, and magnetic resonance imaging. PACAP38 radioimmunoassay was performed and T1-weighted and multi-shell diffusion-weighted images were acquired. Neurite Density Index (NDI) and Orientation Dispersion Index (ODI) were quantified in the amygdala, hippocampus, and EC. CAPS-5 total score and anxious arousal score were used to test for clinical associations with brain structure.Results: Higher PACAP levels were associated with greater EC NDI (β = 0.0099, q = 0.032) and lower EC ODI (β = -0.0073, q = 0.047), and not hippocampal or amygdala measures. Neither EC NDI nor ODI was associated with clinical measures.Conclusions: Circulating PACAP levels were associated with altered neuronal density of the EC but not the hippocampus or amygdala. These findings strengthen evidence that PACAP may impact arousal-associated memory circuits in PTSD.
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Affiliation(s)
- Steven J. Granger
- Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Victor May
- Larner College of Medicine, University of Vermont, Burlington, VT, USA
| | | | - Eylül Akman
- Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, USA
| | - Sydney A. Jobson
- Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, USA
| | - Elizabeth A. Olson
- Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Cameron D. Pernia
- Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
- Basic Neuroscience Division, McLean Hospital, Belmont, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Nikos P. Daskalakis
- Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
- Basic Neuroscience Division, McLean Hospital, Belmont, MA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Caitlin Ravichandran
- Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
- Lurie Center for Autism, Massachusetts General Hospital, Lexington, MA, USA
| | - William A. Carlezon
- Basic Neuroscience Division, McLean Hospital, Belmont, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Kerry J. Ressler
- Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Scott L. Rauch
- Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Isabelle M. Rosso
- Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
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Reuman L, Thompson-Hollands J. Family accommodation in PTSD: Proposed considerations and distinctions from the established transdiagnostic literature. CLINICAL PSYCHOLOGY-SCIENCE AND PRACTICE 2023; 30:453-464. [PMID: 38390036 PMCID: PMC10881198 DOI: 10.1111/cpsp.12375] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 07/07/2020] [Indexed: 11/29/2022]
Abstract
Accommodation is widely documented and studied among internalizing disorders; however, the conceptualization and study of accommodation in the context of posttraumatic stress disorder (PTSD) is relatively nascent. PTSD entails many diagnostic criteria-including exposure to a distinct Criterion A event, emotional numbing, and anger-that may uniquely influence accommodation and merit special consideration. Our aim was to review the impact of accommodation in PTSD, compare and contrast accommodation in PTSD to other disorders with a strong empirical evidence base regarding accommodation, and highlight considerations unique to PTSD and associated implications for accommodation. We conclude by providing considerations for future research and practice.
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Affiliation(s)
- Lillian Reuman
- VA Boston Healthcare System, National Center for PTSD, Boston, MA, USA
- School of Medicine, Boston University, Boston, MA, USA
| | - Johanna Thompson-Hollands
- VA Boston Healthcare System, National Center for PTSD, Boston, MA, USA
- School of Medicine, Boston University, Boston, MA, USA
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Beattie E, Thomas K, Ponder WN, Meyer EC, Kimbrel NA, Cammarata C, Coe E, Pennington ML, Sacco A, Nee B, Leto F, Ostiguy W, Yockey RA, Carbajal J, Schuman DL, Gulliver SB. Network analysis of posttraumatic stress disorder in a treatment-seeking sample of US firefighters and emergency medical technicians. J Affect Disord 2023; 340:686-693. [PMID: 37595896 DOI: 10.1016/j.jad.2023.08.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/12/2023] [Accepted: 08/14/2023] [Indexed: 08/20/2023]
Abstract
BACKGROUND First responders, including firefighters and emergency medical technicians (EMTs), are under extreme stress from repeated exposure to potentially traumatic events. To optimize treatment for this population, it is critical to understand how the various posttraumatic stress disorder (PTSD) symptom factors are associated with one another so these relations may be targeted in treatment. METHOD Using a sample of treatment-seeking firefighters/EMTs (N = 342), we conducted a partial correlation network analysis of the eight-factor model. A Bayesian directed acyclic graph (DAG) was used to estimate causal associations between clusters. RESULTS Approximately 37 % of the sample screened positive for probable PTSD. Internal re-experiencing and external re-experiencing had the strongest edges. In the DAG, internal re-experiencing was the parent node and was potentially predictive of external re-experiencing, negative affect, dysphoric arousal, and avoidance. LIMITATIONS Data were drawn from a treatment-seeking sample that may not generalize to all firefighters/EMTs. CONCLUSIONS The current findings are consistent with prior research suggesting re-experiencing plays a critical role in developing and maintaining PTSD symptoms. Future research should investigate non-treatment-seeking first responders, as well as EMTs and firefighters as individual populations.
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Affiliation(s)
- Emily Beattie
- Trauma Research Consortium at Baylor Scott & White Health, Waco, TX, USA.
| | - Katharine Thomas
- Trauma Research Consortium at Baylor Scott & White Health, Waco, TX, USA
| | | | - Eric C Meyer
- Department of Counseling and Behavioral Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nathan A Kimbrel
- Durham Veterans Affairs (VA) Health Care System, Durham, NC, USA; VA Mid-Atlantic Mental Illness Research, Education and Clinical Center, Durham, NC, USA; VA Health Services Research and Development Center of Innovation to Accelerate Discovery and Practice Transformation, Durham, NC, USA; Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Claire Cammarata
- New York City Office of Labor Relations Employee Assistance Program, USA
| | - Elizabeth Coe
- Trauma Research Consortium at Baylor Scott & White Health, Waco, TX, USA
| | | | - Angelo Sacco
- Trauma Research Consortium at Baylor Scott & White Health, Waco, TX, USA
| | - Brian Nee
- Trauma Research Consortium at Baylor Scott & White Health, Waco, TX, USA
| | - Frank Leto
- Trauma Research Consortium at Baylor Scott & White Health, Waco, TX, USA
| | - William Ostiguy
- Trauma Research Consortium at Baylor Scott & White Health, Waco, TX, USA
| | - R Andrew Yockey
- University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Jose Carbajal
- Stephen F. Austin State University, Nacogdoches, TX, USA
| | | | - Suzy B Gulliver
- Trauma Research Consortium at Baylor Scott & White Health, Waco, TX, USA; Texas A&M University Health Science Center, College of Medicine, College Station, TX, USA
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8
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Granger SJ, May V, Hammack SE, Akman E, Jobson SA, Olson EA, Pernia CD, Daskalakis NP, Ravichandran C, Carlezon WA, Ressler KJ, Rauch SL, Rosso IM. Circulating PACAP levels are associated with altered imaging measures of entorhinal cortex neurite density in posttraumatic stress disorder. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.08.31.23294894. [PMID: 37693514 PMCID: PMC10491384 DOI: 10.1101/2023.08.31.23294894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Background Pituitary adenylate cyclase-activating polypeptide (PACAP) regulates plasticity in brain systems underlying arousal and memory and is associated with posttraumatic stress disorder (PTSD). Research in animal models suggests that PACAP modulates entorhinal cortex (EC) input to the hippocampus, contributing to impaired contextual fear conditioning. In PTSD, PACAP is associated with higher activity of the amygdala to threat stimuli and lower functional connectivity of the amygdala and hippocampus. However, PACAP-affiliated structural alterations of these regions have not been reported. Here, we examined whether peripheral PACAP levels were associated with neuronal morphology of the amygdala and hippocampus (primary analysis), and EC (secondary analysis) using Neurite Orientation Dispersion and Density Imaging. Methods Sixty-four (44 female) adults (19 to 54 years old) with DSM-5 Criterion A trauma exposure completed the Clinician-Administered PTSD Scale (CAPS-5), a blood draw, and magnetic resonance imaging. PACAP38 radioimmunoassay was performed and T1-weighted and multi-shell diffusion- weighted images were acquired. Neurite Density Index (NDI) and Orientation Dispersion Index (ODI) were quantified in the amygdala, hippocampus, and EC. CAPS-5 total score and anxious arousal score were used to test for clinical associations with brain structure. Results Higher PACAP levels in blood were associated with greater EC NDI (β=0.31, q=0.034) and lower EC ODI (β=-0.30, q=0.042) and not hippocampal or amygdala measures. Neither EC NDI nor ODI was associated with clinical measures. Conclusions Circulating PACAP levels were associated with altered neuronal density of the EC but not hippocampus or amygdala. These findings strengthen evidence that PACAP may impact arousal- associated memory circuits.
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Overstreet C, Levey DF, Zhou H, Harrington KM, Quaden R, Stein MB, Gelernter J, Pietrzak RH. Factor structure of the posttraumatic stress disorder checklist (PCL-17) in 279,897 million veteran program participants. Psychiatry Res 2023; 319:114994. [PMID: 36516638 PMCID: PMC10184787 DOI: 10.1016/j.psychres.2022.114994] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/22/2022] [Accepted: 11/27/2022] [Indexed: 11/29/2022]
Abstract
The Million Veteran Program (MVP) uses the posttraumatic stress disorder symptoms (PTSD) Checklist 17 (PCL-17) self-report to assess PTSD. Existing literature suggests that the five-factor dysphoric arousal model best represents the PTSD symptom clusters; this can be tested within MVP, one of the largest samples collected with suitable data. We compared factor models within MVP across genetically defined subsamples (ancestry [European, African, admixed American, and East Asian], sex) via multi-group confirmatory factor analyses in a sample of 279,897 participants. The five-factor dysphoric arousal model best fit the PCL-17 data, consistent with previous findings. The factor structure could also be imposed across all groups tested. Verifying the factor structure provides a framework for future phenotypic and genotypic analyses within MVP and other samples.
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Affiliation(s)
- Cassie Overstreet
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, United States; Department of Psychiatry, Veterans Affairs Connecticut Healthcare Center, West Haven, Connecticut, United States.
| | - Daniel F Levey
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, United States; Department of Psychiatry, Veterans Affairs Connecticut Healthcare Center, West Haven, Connecticut, United States
| | - Hang Zhou
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, United States; Department of Psychiatry, Veterans Affairs Connecticut Healthcare Center, West Haven, Connecticut, United States
| | - Kelly M Harrington
- Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System, Boston, MA, United States; Department of Psychiatry, Boston University School of Medicine, Boston, Massachusetts, United States
| | - Rachel Quaden
- Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System, Boston, MA, United States
| | - Murray B Stein
- Psychiatry Service, VA San Diego Healthcare System, San Diego, CA, United States; Departments of Psychiatry and School of Public Health, University of California San Diego, La Jolla, CA, United States
| | - Joel Gelernter
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, United States; Department of Psychiatry, Veterans Affairs Connecticut Healthcare Center, West Haven, Connecticut, United States
| | - Robert H Pietrzak
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, United States; National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, West Haven, CT, United States
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- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, United States
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10
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Palmisano AN, Norman SB, Panza KE, Petrakis IL, Pietrzak RH. PTSD symptom heterogeneity and alcohol-related outcomes in U.S. military veterans: Indirect associations with coping strategies. J Anxiety Disord 2022; 85:102496. [PMID: 34775167 DOI: 10.1016/j.janxdis.2021.102496] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 10/22/2021] [Accepted: 11/01/2021] [Indexed: 02/04/2023]
Abstract
INTRODUCTION This study investigated the role of coping strategies in mediating the relationship between the 7-factor model of posttraumatic stress disorder (PTSD) symptoms and alcohol misuse in veterans. METHODS Data were analyzed from 615 veterans from a nationally representative study of U.S. veterans who met criteria for probable full or subthreshold PTSD. Path analyses examined the role of self-sufficient, socially-supported, and avoidant coping strategies in mediating associations between PTSD symptom clusters and alcohol use disorder (AUD), alcohol consumption, and alcohol-related consequences. RESULTS Negative affect PTSD symptoms were associated with AUD through increased use of avoidant coping. Additionally, dysphoric arousal PTSD symptoms were associated with AUD; avoidant coping was associated with AUD and increased alcohol consumption; self-sufficient coping was associated with reduced AUD likelihood anhedonia symptoms with decreased use of self-sufficient coping; and negative affect with decreased use of socially-supported coping and increased use of avoidant coping. CONCLUSIONS Results underscore the importance of avoidant coping strategies as potential mediators of the relation between PTSD symptoms and AUD. Interventions designed to mitigate engagement in avoidant coping strategies, and to bolster engagement in self-sufficient and socially-supported strategies may help reduce alcohol misuse in veterans with full or subthreshold PTSD.
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Affiliation(s)
- Alexandra N Palmisano
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA; US Department of Veteran Affairs National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, West Haven, CT, USA.
| | - Sonya B Norman
- Department of Psychiatry, University of California, San Diego, CA, USA; VA Center of Excellence for Stress and Mental Health, San Diego, CA, USA; US Department of Veteran Affairs National Center for Posttraumatic Stress Disorder, White River Junction, VT, USA; VA San Diego Healthcare System, San Diego, CA
| | - Kaitlyn E Panza
- Department of Psychiatry, University of California, San Diego, CA, USA; VA San Diego Healthcare System, San Diego, CA
| | - Ismene L Petrakis
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA; US Department of Veteran Affairs National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, West Haven, CT, USA
| | - Robert H Pietrzak
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA; US Department of Veteran Affairs National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, West Haven, CT, USA; Department of Social and Behavioral Sciences, Yale School of Public Health, New Haven, CT, USA
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11
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Qi J, Sun R, Zhou X. Network analysis of comorbid posttraumatic stress disorder and depression in adolescents across COVID-19 epidemic and Typhoon Lekima. J Affect Disord 2021; 295:594-603. [PMID: 34509075 DOI: 10.1016/j.jad.2021.08.080] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 07/30/2021] [Accepted: 08/25/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND Network analytic studies indicate that posttraumatic stress disorder (PTSD) may be comorbid with depression at the symptom level, but it remains unclear whether these findings are replicable and generalizable across trauma types. OBJECTIVE This study aim was to examine and compare PTSD-depression comorbidity networks of two types of trauma related to Typhoon Lekima and COVID-19 epidemic. METHODS Participants were 1605 and 601 adolescents recruited following Typhoon Lekima and the COVID-19 outbreak, respectively. RESULTS COVID-19 and Lekima PTSD-depression networks had considerable similarities, including adequate stability and accuracy, connected symptoms of PTSD and depression, symptoms with high centralities, and bridge symptoms. PTSD-depression comorbid symptoms were more complicated in the COVID-19 network but may show more persistence in the Lekima network. Distinct bridge symptoms contributed to the heterogeneity of PTSD-depression comorbidity characteristics between the two networks. Specifically, restricted affect and felt down and unhappy were two important bridge symptoms with high centrality unique to the COVID-19 network. CONCLUSIONS PTSD-depression comorbidity network has considerable replicability across trauma types, but specific symptom-level associations and some bridge symptoms may vary across trauma types. These findings also highlight the importance of negative emotions to comorbid PTSD and depression in adolescents following the COVID-19 outbreak compared with Typhoon Lekima.
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Affiliation(s)
- Junjun Qi
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China
| | - Rui Sun
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China
| | - Xiao Zhou
- Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, China.
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12
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Disentangling the association between PTSD symptom heterogeneity and alcohol use disorder: Results from the 2019-2020 National Health and Resilience in Veterans Study. J Psychiatr Res 2021; 142:179-187. [PMID: 34359013 DOI: 10.1016/j.jpsychires.2021.07.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/06/2021] [Accepted: 07/31/2021] [Indexed: 12/25/2022]
Abstract
Veterans are at increased risk of comorbid posttraumatic stress disorder (PTSD) and alcohol use disorder (AUD) relative to civilians. Few studies have explored the association between distinct PTSD symptoms and AUD in veterans, and existing findings are highly discrepant. This study aimed to address this gap and equivocal association by evaluating which PTSD symptom clusters are most associated with AUD in a veteran sample using the 7-factor 'hybrid' model of PTSD. Data were analyzed from the 2019-2020 National Health and Resilience in Veterans Study (NHRVS), a nationally representative survey of 4069 U.S. veterans. Veterans completed self-report measures to assess current PTSD symptoms and AUD. Multivariable logistic regression and relative importance analyses were conducted to examine associations between the 7-factor model of PTSD symptoms and AUD. Adjusting for sociodemographic, military, trauma factors, and depressive symptoms, scores on the dysphoric arousal (20.7% relative variance explained [RVE]) and externalizing behaviors (19.0% RVE) symptom clusters were most strongly associated with AUD in the full sample, while externalizing behaviors (47.7% RVE), anxious arousal (23.9% RVE), and dysphoric arousal (12.4%) accounted for the majority of explained variance in veterans who screened positive for PTSD. Results of this nationally representative study of U.S. veterans highlight the importance of externalizing behaviors and arousal symptoms of PTSD as potential drivers of AUD in this population. The 7-factor hybrid model of PTSD provides a more nuanced understanding of PTSD-AUD associations, and may help inform risk assessment and more personalized treatment approaches for veterans with and at-risk for AUD.
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13
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Tannahill HS, Fargo JD, Barrett TS, Blais RK. Gender as a moderator of the association of military sexual trauma and posttraumatic stress symptoms. J Clin Psychol 2021; 77:2262-2287. [PMID: 33991354 DOI: 10.1002/jclp.23162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 04/05/2021] [Accepted: 04/12/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The current study examined the moderating role of gender on the association of military sexual trauma (MST) type (harassment-only vs. assault) and posttraumatic stress symptoms (PTSS) using the 6-factor Anhedonia Model. METHODS Participants were 1321 service members/veterans. Two-part hurdle models assessed the moderating role of gender on the association of MST type with the presence (at least "moderate" symptoms endorsed within each cluster) or severity of PTSS and symptom clusters. RESULTS Among those who experienced assault MST, women were at higher risk for the presence of intrusive, avoidance, negative affect, and anhedonia symptoms, and higher risk for more severe negative affect symptoms. Among those who experienced harassment-only MST, men were at higher risk of more severe PTSS symptoms overall and in the intrusive and dysphoric arousal symptom clusters. No other significant differences were observed. CONCLUSIONS Gathering information on MST type may be helpful in treatment planning.
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Affiliation(s)
| | - Jamison D Fargo
- Department of Psychology, Utah State University, Logan, Utah, USA
| | - Tyson S Barrett
- Department of Psychology, Utah State University, Logan, Utah, USA
| | - Rebecca K Blais
- Department of Psychology, Utah State University, Logan, Utah, USA
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14
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Modrowski CA, Munion AK, Kerig PK, Kilshaw RE. A Bayesian Structural Equation Modeling Factor Analysis of the UCLA Posttraumatic Stress Disorder Reaction Index for DSM-5 in a Polyvictimized Sample of Adolescents. JOURNAL OF PSYCHOPATHOLOGY AND BEHAVIORAL ASSESSMENT 2021; 43:119-130. [PMID: 34149159 PMCID: PMC8210953 DOI: 10.1007/s10862-020-09854-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2020] [Indexed: 10/22/2022]
Abstract
The revised criteria for posttraumatic stress disorder (PTSD) in the fifth edition of the Diagnostic and Statistical Manual necessitated the development of new screening tools for youth, one of the most widely used of which is the UCLA Posttraumatic Stress Disorder Reaction Index for DSM-5 (RI-5). Thus far, the few studies that have investigated the RI-5's factor structure have supported a four-factor model. However, to date this research has been limited to youth with histories of exposure to single-event traumatic stressors, a significant limitation as evidence suggests many trauma-exposed youth report exposure to multiple types of traumatic stressors, or polyvictimization. It is imperative to determine the generalizability of previous factor models to specific populations which they are purported to represent. We investigated whether the RI-5's four-factor model replicated in a sample of 455 polyvictimized justice-involved adolescents. Initial confirmatory factor analysis demonstrated that the four-factor model did not converge. Therefore, we utilized Bayesian Structural Equations Modeling (BSEM) to determine why the previously proposed factor structure did not converge. The BSEM model suggested that the global factor structure was acceptable and did not require addition or subtraction of any factor or cross-factor loadings. However, small and moderate residual covariances resulted in model misspecification, suggesting there may be additional associations not captured by the current DSM-5 model for polyvictimized youth. Future work should continue examining the RI-5's factor structure in order to better understand whether the current results are unique and how measurements assessing DSM-5 PTSD symptom criteria perform in diverse trauma-exposed youth populations.
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Affiliation(s)
- Crosby A. Modrowski
- Alpert Medical School of Brown University/Bradley Hasbro Children’s Research Center
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15
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Lenferink LIM, van den Munckhof MJA, de Keijser J, Boelen PA. DSM-5-TR prolonged grief disorder and DSM-5 posttraumatic stress disorder are related, yet distinct: confirmatory factor analyses in traumatically bereaved people. Eur J Psychotraumatol 2021; 12:1-14. [PMID: 34912501 PMCID: PMC8667936 DOI: 10.1080/20008198.2021.2000131] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Prolonged grief disorder (PGD) is newly included in the text revision of the DSM-5 (DSM-5-TR). So far, it is unknown if DSM-5-TR PGD is distinguishable from bereavement-related posttraumatic stress disorder (PTSD). Prior research examining the distinctiveness of PTSD and pathological grief focused on non-traumatic loss samples, used outdated conceptualizations of grief disorders, and has provided mixed results. OBJECTIVE In a large sample of traumatically bereaved people, we first evaluated the factor structure of PTSD and PGD separately and then evaluated the factor structure when combining PTSD and PGD symptoms to examine the distinctiveness between the two syndromes. METHODS Self-reported data were used from 468 people bereaved due to the MH17 plane disaster (N = 200) or a traffic accident (N = 268). The 10 DSM-5-TR PGD symptoms were assessed with the Traumatic Grief Inventory-Self Report Plus (TGI-SR+). The 20-item Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5) was used to tap PTSD symptoms. Confirmatory factor analyses were conducted. RESULTS For PTSD, a seven factor, so-called 'Hybrid' model yielded the best fit. For PGD, a univariate factor model fits the data well. A combined model with PGD items loading on one factor and PTSD items on seven factors (associations between PGD and PTSD subscales r ≥ .50 and ≤.71), plus a higher-order factor (i.e. PTSD factors on a higher-order PTSD factor) (association between higher-order PTSD factor and PGD factor r = .82) exhibited a better fit than a model with all PGD and PTSD symptom loading on a single factor or two factors (i.e. one for PGD and one for PTSD). CONCLUSIONS This is the first study examining the factor structure of DSM-5-TR PGD and DSM-5 PTSD in people confronted with a traumatic loss. The findings provide support that PGD constitutes a syndrome distinguishable from, yet related with, PTSD.
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Affiliation(s)
- L I M Lenferink
- Department of Clinical Psychology, Faculty of Social Sciences, Utrecht University, Utrecht, The Netherlands.,Department of Clinical Psychology and Experimental Psychopathology, Faculty of Behavioral and Social Sciences, University of Groningen, Groningen, The Netherlands.,Department of Psychology, Health, & Technology, Faculty of Behavioural, Management, and Social Sciences, University of Twente, Enschede, The Netherlands
| | - M J A van den Munckhof
- Department of Clinical Psychology, Faculty of Social Sciences, Utrecht University, Utrecht, The Netherlands
| | - J de Keijser
- Department of Clinical Psychology and Experimental Psychopathology, Faculty of Behavioral and Social Sciences, University of Groningen, Groningen, The Netherlands
| | - P A Boelen
- Department of Clinical Psychology, Faculty of Social Sciences, Utrecht University, Utrecht, The Netherlands.,Foundation Centrum '45, Diemen, the Netherlands.,ARQ National Psychotrauma Centre, Diemen, the Netherlands
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16
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Kerig PK, Mozley MM, Mendez L. Forensic Assessment of PTSD Via DSM-5 Versus ICD-11 Criteria: Implications for Current Practice and Future Research. PSYCHOLOGICAL INJURY & LAW 2020. [DOI: 10.1007/s12207-020-09397-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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17
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Ibrahim H, Catani C, Ismail AA, Neuner F. Dimensional Structure and Cultural Invariance of DSM V Post-traumatic Stress Disorder Among Iraqi and Syrian Displaced People. Front Psychol 2019; 10:1505. [PMID: 31354564 PMCID: PMC6629925 DOI: 10.3389/fpsyg.2019.01505] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 06/13/2019] [Indexed: 11/22/2022] Open
Abstract
While the factor structure of post-traumatic stress disorder (PTSD) symptoms has been investigated among various traumatized populations in Western and high-income countries, knowledge regarding the validity of factor structure of PTSD among culturally diverse populations in low-and-middle-income countries is limited. The current study examined the factor structure and cultural invariance of PTSD in 521 Iraqi and 993 Syrian war-affected displaced people who were living in the Kurdistan Region of Iraq. Results from confirmatory factor analyses demonstrated that alternative factor models for PTSD, including a new model derived from this population (anhedonia and affect model) resulted in a better fit than the current DSM V models. Taken together, the results showed that a good fit, as well as the measurement invariance of PTSD factors, could be obtained by applying the anhedonia and hybrid model. This study provides further support for the anhedonia and hybrid model of PTSD and fills an important gap in knowledge about the validity of PTSD symptom clusters among Arab and Kurdish populations.
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Affiliation(s)
- Hawkar Ibrahim
- Department of Psychology, Clinical Psychology and Psychotherapy, Bielefeld University, Bielefeld, Germany.,Department of Clinical Psychology, Koya University, Koya, Iraq.,Vivo International, Konstanz, Germany
| | - Claudia Catani
- Department of Psychology, Clinical Psychology and Psychotherapy, Bielefeld University, Bielefeld, Germany.,Vivo International, Konstanz, Germany
| | - Azad Ali Ismail
- Department of Psychology, Clinical Psychology and Psychotherapy, Bielefeld University, Bielefeld, Germany.,Department of Clinical Psychology, Koya University, Koya, Iraq
| | - Frank Neuner
- Department of Psychology, Clinical Psychology and Psychotherapy, Bielefeld University, Bielefeld, Germany.,Vivo International, Konstanz, Germany
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18
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Bravo AJ, Witkiewitz K, Kelley ML, Redman JC. Prevalence of Mental Health Problems and Willingness to Participate in a Mindfulness Treatment: An Examination among Veterans Injured in Combat. Mindfulness (N Y) 2019; 10:953-963. [PMID: 31131067 PMCID: PMC6532979 DOI: 10.1007/s12671-018-1047-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Numerous studies have demonstrated that combat-exposed military veterans are at risk for numerous psychiatric disorders and rates of comorbid mental health and substance use disorders are high. Veterans wounded in combat are a particularly high-risk group of military veterans, however treatment services are often underutilized among this group and it is unclear whether an online treatment program that targets emotional and physical distress (including mental health symptoms and substance use disorders) would be appealing to Veterans wounded in combat. The goal of the current study was to conduct formative research on whether veterans wounded in combat would be interested in an online mindfulness-based treatment to help them cope with emotional and physical discomfort. We recruited Veterans from Combat Wounded Coalition (n = 163; 74.2% non-Hispanic White; 95.7% male) to complete an online survey of mental health and substance use disorder symptoms and willingness to participate in mindfulness treatment. The majority of participants reported significant mental health symptoms and indicated that they would be willing to participate in mindfulness treatment, either at the VA (54.0%) or online (59.5%). Those with problems in multiple health domains and lower self-compassion were significantly more likely to express interest in treatment and likely to represent a very high need group of veterans. The development of a mindfulness-based treatment for this group of individuals could be very helpful in reducing mental health symptoms and improving quality of life among wounded warriors.
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Affiliation(s)
- Adrian J. Bravo
- Center on Alcoholism, Substance Abuse, and Addictions, University of New Mexico
| | | | - Michelle L. Kelley
- Old Dominion University, Virginia Consortium Program in Clinical Psychology
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19
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Durham TA, Byllesby BM, Lv X, Elhai JD, Wang L. Anger as an underlying dimension of posttraumatic stress disorder. Psychiatry Res 2018; 267:535-540. [PMID: 29980134 DOI: 10.1016/j.psychres.2018.06.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 06/06/2018] [Accepted: 06/06/2018] [Indexed: 11/28/2022]
Abstract
In this study, we examined the underlying role of anger in posttraumatic stress disorder (PTSD). Although anger is currently considered within two symptoms of PTSD (i.e., anger/irritability; and negative emotional state), some research has found that anger is more than just a diagnostic symptom of PTSD. The sample consisted of 375 trauma-exposed individuals that completed the PTSD Checklist-5 and Dimensions of Anger Reactions Scale. Confirmatory factor analysis was used to assess PTSD's factor structure based on the four-factor DSM-5 PTSD model. Subsequently, the model was re-tested, statistically controlling for anger by regressing PTSD's items on an observed anger score. Individual factor loading differences were then compared to determine anger's underlying role. Results indicated that a significant amount of variance in PTSD, at both the item level and factor level, was attributable to an underlying dimension of anger. The largest factor attenuation was for the symptom of irritability/anger and the smallest attenuation was recklessness. The results suggest that anger underlies more of PTSD than the two diagnostic symptom criteria.
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Affiliation(s)
- Tory A Durham
- VA Puget Sound Health Care System, Seattle Division, Seattle, WA, USA; Department of Psychology, University of Toledo, Toledo, OH 43606-3390, USA
| | - Brianna M Byllesby
- Department of Psychology, University of Toledo, Toledo, OH 43606-3390, USA; Cincinnati VA Medical Center, Cincinnati, OH, USA
| | - Xin Lv
- Department of Psychology, University of Toledo, Toledo, OH 43606-3390, USA
| | - Jon D Elhai
- Department of Psychology, University of Toledo, Toledo, OH 43606-3390, USA; Department of Psychiatry, University of Toledo, Toledo, OH, USA.
| | - Li Wang
- Laboratory for Traumatic Stress studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
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20
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Benfer N, Bardeen JR, Cero I, Kramer LB, Whiteman SE, Rogers TA, Silverstein MW, Weathers FW. Network models of posttraumatic stress symptoms across trauma types. J Anxiety Disord 2018; 58:70-77. [PMID: 30055470 DOI: 10.1016/j.janxdis.2018.07.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/14/2018] [Accepted: 07/17/2018] [Indexed: 12/27/2022]
Abstract
Evidence suggests that posttraumatic stress (PTS) disorder (PTSD) symptom presentations may vary as a function of index trauma type. Network analysis was employed in the present study to examine differences in PTS symptom centrality (i.e., the relative influence of a symptom on the network), and PTS symptom associations across three trauma types: motor vehicle accident (MVA), sexual assault (SA), and sudden accidental/violent death of a loved one (SAD). The final sample comprised 554 female undergraduates who had experienced a MVA (n = 226), SA (n = 222), or SAD (n = 106) per Diagnostic Statistical Manual-Fifth Edition (DSM-5) criteria. Within the pooled network, anhedonia and dysphoria emerged as the most central symptoms, while trauma-related amnesia was the least central. The SA network was largely consistent with the DSM-5 conceptualization of PTSD. In contrast, the SAD network was the least consistent with the DSM-5 conceptualization of PTSD, and centrality estimates for the SAD network were inconsistent with the MVA and SA networks. Findings of the current study suggest a need to consider index trauma type as an important factor in the ontology of PTSD. Findings also add to the ongoing discussions about the suitability of SAD as a PTSD-relevant trauma type and about the importance of trauma-related amnesia as a PTSD symptom.
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Affiliation(s)
| | | | - Ian Cero
- Auburn University, United States
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21
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Silverstein MW, Dieujuste N, Kramer LB, Lee DJ, Weathers FW. Construct validation of the hybrid model of posttraumatic stress disorder: Distinctiveness of the new symptom clusters. J Anxiety Disord 2018; 54:17-23. [PMID: 29421368 DOI: 10.1016/j.janxdis.2017.12.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 10/31/2017] [Accepted: 12/13/2017] [Indexed: 11/29/2022]
Abstract
Despite the factor analytic support for the seven-factor hybrid model (Armour et al., 2015) of posttraumatic stress disorder (PTSD), little research has examined the degree to which newly established symptom clusters (i.e., negative affect, anhedonia, dysphoric arousal, anxious arousal, externalizing behavior) functionally and meaningfully differ in their associations with other clinical phenomena. The aim of the current study was to examine the degree to which newly established PTSD symptom clusters differentially relate to co-occurring psychopathology and related clinical phenomena through Wald testing using latent variable modeling. Participants were 535 trauma-exposed undergraduates who completed the Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5; Weathers et al., 2013) and Personality Assessment Inventory (PAI; Morey, 1991). As expected and in line with results from previous studies, significant heterogeneity emerged for dysphoric arousal, anxious arousal, and externalizing behavior. However, there was less evidence for the distinctiveness of negative affect and anhedonia. Results indicate that only some of the newly established symptom clusters significantly differ in their associations with related clinical phenomena and that the hybrid model might not provide a meaningful framework for understanding which PTSD symptoms relate to associated features. Limitations include a non-clinical sample and reliance on retrospective self-report assessment measures.
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Affiliation(s)
| | - Nathalie Dieujuste
- VISN 19 Rocky Mountain MIRECC, Denver Veterans Affairs Medical Center, United States
| | | | - Daniel J Lee
- Veterans Affairs Boston Healthcare System, Boston University School of Medicine, United States
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22
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El-Gabalawy R, Blaney C, Tsai J, Sumner JA, Pietrzak RH. Physical health conditions associated with full and subthreshold PTSD in U.S. military veterans: Results from the National Health and Resilience in Veterans Study. J Affect Disord 2018; 227:849-853. [PMID: 29689700 PMCID: PMC6269149 DOI: 10.1016/j.jad.2017.11.058] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 10/19/2017] [Accepted: 11/12/2017] [Indexed: 01/15/2023]
Abstract
BACKGROUND While both full and subthreshold posttraumatic stress disorder (PTSD) may be linked to physical conditions, contemporary population-based data on these associations in military veterans are scarce. Further, little is known about how component aspects of PTSD, which is a heterogeneous disorder, may relate to physical conditions in this population. METHODS Data were analyzed from a population-based sample of 3157 U.S. military veterans who participated in the 2011 National Health and Resilience in Veterans Study. Multiple logistic regression analyses evaluated associations between full and subthreshold PTSD, and physical conditions. RESULTS A total 6.1% of the sample met screening criteria for full PTSD and 9.0% for subthreshold PTSD. Both full and subthreshold PTSD were associated with increased odds of sleep disorder (adjusted odds ratio [AOR] = 3.52 and 2.10, respectively) and respiratory conditions (AOR = 2.60 and 1.87, respectively). Full PTSD was additionally associated with increased odds of osteoporosis or osteopenia (AOR = 2.72) and migraine (AOR = 1.91), while subthreshold PTSD only was associated with increased odds of diabetes (AOR = 1.42). Analyses of PTSD symptom clusters revealed that all of these associations were primarily driven by dysphoric arousal symptoms, which are characterized by sleep difficulties, anger/irritability, and concentration problems. LIMITATIONS The study used self-report measures for health conditions and DSM-IV diagnostic criteria for PTSD. CONCLUSION Results of this study provide a characterization of physical conditions associated with full and subthreshold PTSD in U.S. military veterans. They highlight the potential importance of PTSD dysphoric arousal in risk models of certain physical conditions in this population.
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Affiliation(s)
- Renée El-Gabalawy
- Department of Anesthesia and Perioperative Medicine, University of Manitoba, Winnipeg, MB, Canada; Department of Clinical Health Psychology, University of Manitoba, Winnipeg, MB, Canada; Department of Psychology, University of Manitoba, Winnipeg, MB, Canada; Department of Psychiatry, University of Manitoba, Winnipeg, MB, Canada.
| | - Caitlin Blaney
- Department of Anesthesia and Perioperative Medicine, University of Manitoba, Winnipeg, MB, Canada,Department of Psychology, University of Manitoba, Winnipeg, MB, Canada
| | - Jack Tsai
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA,US Department of Veterans Affairs New England Mental Illness Research Education and Clinical Center, USA
| | - Jennifer A. Sumner
- Center for Behavioral Cardiovascular Health, Columbia University Medical Center, New York, NY, USA
| | - Robert H. Pietrzak
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA,US Department of Veterans Affairs New England Mental Illness Research Education and Clinical Center, USA
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23
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Mordeno IG, Hall BJ. DSM-5-based latent PTSD models: Assessing structural relations with GAD in Filipino post-relocatees. Psychiatry Res 2017; 258:1-8. [PMID: 28964957 DOI: 10.1016/j.psychres.2017.09.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 08/12/2017] [Accepted: 09/22/2017] [Indexed: 12/28/2022]
Abstract
An increasing number of studies investigated the latent factor structure of posttraumatic stress disorder (PTSD) symptomatology following the new fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). To date, there is no consensus on the best representation of PTSD. This study examined six latent PTSD models in a sample of Filipino post-disaster relocatees (N = 523). Further investigation on the relationship of the best-fitting model to generalized anxiety disorder (GAD) in the latent level was conducted. The seven-factor hybrid model consisting of intrusion, avoidance, negative affect, anhedonia, externalizing behaviors, anxious arousal, and dysphoric arousal, was the best fitting model. Latent associations between the factors in the hybrid model and GAD suggest there are core and transdiagnostic features of PTSD. These findings have implications for understanding the underlying mechanism of PTSD and can inform the development of trauma-related interventions, particularly among post-disaster relocatees.
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Affiliation(s)
- Imelu G Mordeno
- College of Education, Mindanao State University, Iligan Institute of Technology, Philippines
| | - Brian J Hall
- Global and Community Mental Health Research Group, Faculty of Social Sciences (E21), University of Macau, Avenida da Universidade, Taipa, Macau, Hong Kong Special Administrative Region; Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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24
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Alhalal E, Ford-Gilboe M, Wong C, AlBuhairan F. Reliability and validity of the Arabic PTSD Checklist Civilian Version (PCL-C) in women survivors of intimate partner violence. Res Nurs Health 2017; 40:575-585. [PMID: 29130548 DOI: 10.1002/nur.21837] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 09/14/2017] [Indexed: 11/11/2022]
Abstract
Although intimate partner violence (IPV) survivors are at high risk for developing posttraumatic stress disorder (PTSD), PTSD has been considered a disorder specific to Western culture. There is a lack of reliable and valid measures of PTSD symptomology available in the Arab world, and there is still no clear evidence about the underlying factor structure of PTSD symptomology in the context of IPV. Thus, in the present study we investigated the construct validity (factor structure), internal consistency, and concurrent validity of a translated version of the PTSD Checklist Civilian Version (PCL-C) in a sample of 299 Saudi women who had experienced IPV. Four competing models (DSM-IV, Emotional Numbing, Dysphoria, and Dysphoric Arousal) were specified and estimated using confirmatory factor analysis (CFA). The five-factor Dysphoric Arousal model provided superior fit with the data compared to the alternative models, supporting construct validity of the Arabic PCL-C. The factor loadings for the five-factor Dysphoric Arousal model ranged from .31 to .83. A relatively high correlation between the Arabic PCL-C and Arabic Center for Epidemiologic Studies-Depression (CES-D) Scale (r = .78, p < .05) provided evidence of concurrent validity. The total scale also demonstrated internal consistency reliability (α = .89). Overall, the study supports the Dysphoric Arousal model in representing PTSD symptoms among IPV survivors, the reliability and validity of the Arabic version of PCL-C, and the cross-cultural applicability of PTSD symptoms.
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Affiliation(s)
- Eman Alhalal
- Nursing College, King Saud University, Riyadh, Saudi Arabia
| | - Marilyn Ford-Gilboe
- Arthur Labatt Family School of Nursing, Western University, London, Ontario, Canada
| | - Carol Wong
- Arthur Labatt Family School of Nursing, Western University, London, Ontario, Canada
| | - Fadia AlBuhairan
- Population Health Research, King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Riyadh, Saudi Arabia
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Dornbach-Bender A, Ruggero CJ, Waszczuk MA, Gamez W, Watson D, Kotov R. Mapping emotional disorders at the finest level: Convergent validity and joint structure based on alternative measures. Compr Psychiatry 2017; 79:31-39. [PMID: 28754505 DOI: 10.1016/j.comppsych.2017.06.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 05/15/2017] [Accepted: 06/22/2017] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Traditional categorization of emotional disorders suffers from within-disorder heterogeneity and excessive comorbidity. Quantitative nosology instead proposes grouping homogenous components of these disorders within a higher order internalizing dimension. However, the precise number, composition, and hierarchical structure of these components remains unclear and varies based on assessment tools. METHODS The present study jointly examined two assessment systems with the broadest coverage of homogeneous emotional disorder components-the revised Interview for Mood and Anxiety Symptoms (IMAS-R) and the self-report-based expanded version of the Inventory of Depression and Anxiety Symptoms (IDAS-II)-to map their convergent and discriminant validity and joint structure in outpatient (N=426) and treated student (N=306) samples. RESULTS Results identified 33 non-redundant components of emotional disorders. Most demonstrated strong convergent and discriminant validity between these two instruments. However, the IMAS-R provided more detailed and differentiated characterization of the content subsumed within three IDAS-II scales, and seven of the 33 components were unique to one measure or the other. Joint analysis of scales from both measures supported a four factor (i.e., distress, fear, OCD, mania) mid-level structure of emotional disorders. CONCLUSIONS Using multiple measures, methods, and samples, the present study provided evidence for the validity of core lower order components of the internalizing dimension and suggested they cluster into as many as four distinct factors reflecting distress, fear, OCD, and mania.
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Affiliation(s)
- Allison Dornbach-Bender
- Department of Psychology, University of North Texas, 1155 Union Circle #311280, Denton, TX 76203, United States.
| | - Camilo J Ruggero
- Department of Psychology, University of North Texas, 1155 Union Circle #311280, Denton, TX 76203, United States.
| | - Monika A Waszczuk
- Department of Psychiatry, Stony Brook University, HSC, Level T-10, Room 060F, Stony Brook, NY 11794-8101, United States.
| | - Wakiza Gamez
- Department of Psychology, University of Iowa, Iowa City, IA, USA.
| | - David Watson
- Department of Psychology, 118 Haggar Hall, University of Notre Dame, Notre Dame, IN 46556, United States.
| | - Roman Kotov
- Department of Psychiatry, Stony Brook University, HSC, Level T-10, Room 060H, Stony Brook, NY 11794-8101, United States.
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Pennings SM, Finn J, Houtsma C, Green BA, Anestis MD. Posttraumatic Stress Disorder Symptom Clusters and the Interpersonal Theory of Suicide in a Large Military Sample. Suicide Life Threat Behav 2017; 47:538-550. [PMID: 27982459 DOI: 10.1111/sltb.12317] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 07/06/2016] [Indexed: 11/30/2022]
Abstract
Prior studies examining posttraumatic stress disorder (PTSD) symptom clusters and the components of the interpersonal theory of suicide (ITS) have yielded mixed results, likely stemming in part from the use of divergent samples and measurement techniques. This study aimed to expand on these findings by utilizing a large military sample, gold standard ITS measures, and multiple PTSD factor structures. Utilizing a sample of 935 military personnel, hierarchical multiple regression analyses were used to test the association between PTSD symptom clusters and the ITS variables. Additionally, we tested for indirect effects of PTSD symptom clusters on suicidal ideation through thwarted belongingness, conditional on levels of perceived burdensomeness. Results indicated that numbing symptoms are positively associated with both perceived burdensomeness and thwarted belongingness and hyperarousal symptoms (dysphoric arousal in the 5-factor model) are positively associated with thwarted belongingness. Results also indicated that hyperarousal symptoms (anxious arousal in the 5-factor model) were positively associated with fearlessness about death. The positive association between PTSD symptom clusters and suicidal ideation was inconsistent and modest, with mixed support for the ITS model. Overall, these results provide further clarity regarding the association between specific PTSD symptom clusters and suicide risk factors.
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Affiliation(s)
| | - Joseph Finn
- Psychology, University of Southern Mississippi, Hattiesburg, MS, USA
| | - Claire Houtsma
- Psychology, University of Southern Mississippi, Hattiesburg, MS, USA
| | - Bradley A Green
- Psychology, University of Southern Mississippi, Hattiesburg, MS, USA
| | - Michael D Anestis
- Psychology, University of Southern Mississippi, Hattiesburg, MS, USA
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A confirmatory factor analysis of the PTSD checklist 5 in veteran and college student samples. Psychiatry Res 2017; 255:219-224. [PMID: 28578182 PMCID: PMC5991101 DOI: 10.1016/j.psychres.2017.05.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 05/17/2017] [Accepted: 05/21/2017] [Indexed: 11/21/2022]
Abstract
An important change in the conceptualization of posttraumatic stress disorder (PTSD) has been the shift from a three-factor model used in the DSM-IV-TR to the current four-factor model used in DSM-5. Early research initially supported the three-factor model, but most recent data suggest a four-factor model provides the best fit. Still other research has examined evidence for a five-factor model that would include depression sequelae. By way of a confirmatory factor analysis, we demonstrate the reliability of DSM-5 PTSD criteria clustering in a sample of 124 OEF/OIF/OND Veterans treated at a VAMC (49% white, 89% men) and a sample of 737 college students (48% white, 78% women). All participants were trauma-exposed, and completed the PTSD Checklist for DSM-5. The current study shows both samples best support a five-factor model over two four factor models considered for the DSM-5, though none provided better than moderate fit. Implications of the current findings regarding the reliability of the new DSM-5 criteria of PTSD will be discussed.
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28
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Taylor BE, Chekaluk E, Bennett J. Post-Traumatic Stress Disorder, Depression and Anxiety among North Korean Refugees: A Meta-Analysis. Psychiatry Investig 2017; 14:550-561. [PMID: 29042879 PMCID: PMC5639122 DOI: 10.4306/pi.2017.14.5.550] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/26/2016] [Accepted: 10/11/2016] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE Post-traumatic stress disorder is common among North Korean refugees who have fled their country for economic, financial and humanitarian reasons. Co-morbid depression and anxiety are also common among North Korean refugees, due to the difficulties they have faced within their country and during their escape journey. Depression and anxiety complicate treatment for post-traumatic stress disorder, and lead to poorer outcomes. Thus, the aim of the present study was to provide a meta-analysis of studies investigating post-traumatic stress disorder, depression, and anxiety among North Korean refugees. METHODS Selected articles were published in English, and included measures of post-traumatic stress, and/or depression and anxiety. 10 studies were included in the depression meta-analysis, and 6 in the anxiety meta-analysis. RESULTS A random-effects model revealed strong, significant associations between post-traumatic stress and depression, r=0.63, 95% CI (0.51, 0.72), p<0.001, z=8.33, and anxiety, r=0.51, 95% CI (0.36, 0.63), p<0.001, z=6.07. The relationships between post-traumatic stress, depression and anxiety were higher among adults and those with more than five years outside of North Korea. CONCLUSION Depression appears to be an important treatment focus for North Korean refugees with post-traumatic stress.
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Affiliation(s)
| | - Eugene Chekaluk
- Department of Psychology, Macquarie University, Sydney, Australia
| | - Joanne Bennett
- Department of Psychology, Macquarie University, Sydney, Australia
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29
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Zhou X, Wu X, Zhen R. Assessing the latent structure of DSM-5 PTSD among Chinese adolescents after the Ya'an earthquake. Psychiatry Res 2017; 254:33-39. [PMID: 28441585 DOI: 10.1016/j.psychres.2017.04.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 03/18/2017] [Accepted: 04/18/2017] [Indexed: 11/27/2022]
Abstract
To examine the underlying substructure of DSM-5 PTSD in an adolescent sample, this study used a confirmatory factor analysis alternative model approach to assess 813 adolescents two and a half years after the Ya'an earthquake. Participants completed the PTSD Checklist for DSM-5, the Center for Epidemiologic Studies Depression Scale for Children, and the Screen for Child Anxiety Related Emotional Disorders. The results found that the seven-factor hybrid PTSD model entailing intrusion, avoidance, negative affect, anhedonia, externalizing behaviors, anxious arousal, and dysphoric arousal had significantly better fit indices than other alternative models. Depression and anxiety displayed high correlations with the seven-factor model. The findings suggested that the seven-factor model was more applicable to adolescents following the earthquake, and may carry important implications for further clinical practice and research on posttraumatic stress symptomatology.
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Affiliation(s)
- Xiao Zhou
- Beijing Key Laboratory of Applied Experimental Psychology, School of Psychology, Beijing Normal University, Beijing 100875, China; I-Core Research Center for Mass Trauma; Bob Shapell School of Social Work, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Xinchun Wu
- Beijing Key Laboratory of Applied Experimental Psychology, School of Psychology, Beijing Normal University, Beijing 100875, China.
| | - Rui Zhen
- Beijing Key Laboratory of Applied Experimental Psychology, School of Psychology, Beijing Normal University, Beijing 100875, China
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30
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Arbona C, Fan W, Schwartz J, Pao C, Tran JK, Buser S. Measurement and Structural Invariance of Posttraumatic Stress Disorder Symptoms in Hispanic and Caucasian Firefighters: A Bias-Corrected Bootstrap Confidence Intervals Approach. Assessment 2017; 26:209-222. [DOI: 10.1177/1073191116685805] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study compared across Hispanic and Caucasian firefighters the relative fit of the four-factor Emotional Numbing and Dysphoria posttraumatic stress disorder models to the more recently proposed Dysphoric Arousal five-factor model. As hypothesized, the Dysphoric Arousal five-factor model emerged as the best fitting model within each ethnic group and it also showed measurement invariance between groups (configural invariance). Results of multigroup confirmatory factor analyses and a bias-corrected bootstrap confidence intervals analytic approach indicated that the five factor model also demonstrated invariance in factor loadings (metric invariance) and item-level intercepts (scalar invariance) across the two ethnic groups. Results indicate that the Dysphoric Arousal five factor model captures similar psychological constructs across Caucasian and English-speaking Hispanic firefighters. Therefore, observed factor scores are comparable across ethnic groups and can be combined when examining predictors of posttraumatic stress disorder severity.
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Affiliation(s)
| | | | | | | | - Jana K. Tran
- Firefighter Support Network, Houston Fire Department, Houston, TX, USA
| | - Sam Buser
- Firefighter Support Network, Houston Fire Department, Houston, TX, USA
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31
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Szabo YZ, Warnecke AJ, Newton TL, Valentine JC. Rumination and posttraumatic stress symptoms in trauma-exposed adults: a systematic review and meta-analysis. ANXIETY STRESS AND COPING 2017; 30:396-414. [DOI: 10.1080/10615806.2017.1313835] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yvette Z. Szabo
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY, USA
| | - Ashlee J. Warnecke
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY, USA
| | - Tamara L. Newton
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY, USA
| | - Jeffrey C. Valentine
- Department of Educational and Counseling Psychology, University of Louisville, Louisville, KY, USA
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32
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Walsh E, Shou Y, Han J, Brinker JK. Development and Validation of a Chinese Language Version of the Ruminative Thought Styles Questionnaire. JOURNAL OF PSYCHOEDUCATIONAL ASSESSMENT 2017. [DOI: 10.1177/0734282917696937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The Ruminative Thought Styles Questionnaire (RTS) conceptualizes rumination as repetitive, recurrent, intrusive, and uncontrollable thinking. This article outlines the development and validation of a Chinese language version of the RTS, the RTS-CH. Following independent translation, back translation, and final translation checking, the factor structure, convergent and divergent validity, and item-level congruence of the RTS-CH was examined and improved. The resultant scale showed equivalence to the RTS and had attractive psychometric properties. The RTS-CH is the first Chinese language rumination measure that does not have inherently negative or depressive content.
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Affiliation(s)
- E. Walsh
- Australian National University, Canberra, Australian Capital Territory, Australia
| | - Y. Shou
- Australian National University, Canberra, Australian Capital Territory, Australia
| | - J. Han
- Australian National University, Canberra, Australian Capital Territory, Australia
| | - J. K. Brinker
- Swinburne University of Technology, Hawthorn, Victoria, Australia
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33
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Mordeno IG, Carpio JGE, Nalipay MJN, Saavedra RLJ. PTSD's Underlying Dimensions in Typhoon Haiyan Survivors: Assessing DSM-5 Symptomatology-Based PTSD Models and Their Relation to Posttraumatic Cognition. Psychiatr Q 2017; 88:9-23. [PMID: 26921207 DOI: 10.1007/s11126-016-9429-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The recent changes in posttraumatic stress disorder (PTSD) symptomatology in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) call for a re-examination of PTSD's latent factor structure. The present study assessed six competing models of PTSD based on DSM-5 symptomatology using confirmatory factor analysis in a sample of young adult Filipino survivors of typhoon Haiyan, one of the strongest typhoons in the world ever recorded at the time of its landfall (N = 632). Furthermore, the differential relationships of the factors of the best-fitting model with posttraumatic cognitions were also investigated. Results showed the 7-factor hybrid model of PTSD comprised of intrusion, avoidance, negative affect, anhedonia, externalizing behaviors, anxious arousal, and dysphoric arousal, to be the best fitting model. In addition, the varying degrees of relationship with posttraumatic cognitions support the distinctiveness of each factor. These findings are pertinent in light of the changes in DSM-5 PTSD symptomatology, as well as in understanding the underlying dimensions of PTSD among Asian, particularly Filipino, survivors of a natural disaster.
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Affiliation(s)
- Imelu G Mordeno
- Mindanao State University - Iligan Institute of Technology, Iligan City, Philippines
| | - Jennifer Gay E Carpio
- Mindanao State University - Iligan Institute of Technology, Iligan City, Philippines
| | - Ma Jenina N Nalipay
- De La Salle University Manila, 2401 Taft Ave., Malate, 1004, Manila, Philippines.
| | - Rhea Lina J Saavedra
- Leyte Normal University, Tacloban City, Philippines
- University of the Philippines Visayas - Tacloban College, Tacloban City, Philippines
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34
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Examining the dimensional structure models of secondary traumatic stress based on DSM-5 symptoms. Asian J Psychiatr 2017; 25:154-160. [PMID: 28262139 DOI: 10.1016/j.ajp.2016.10.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 09/23/2016] [Accepted: 10/29/2016] [Indexed: 11/20/2022]
Abstract
Latent factor structure of Secondary Traumatic Stress (STS) has been examined using Diagnostic Statistic Manual-IV (DSM-IV)'s Posttraumatic Stress Disorder (PTSD) nomenclature. With the advent of Diagnostic Statistic Manual-5 (DSM-5), there is an impending need to reexamine STS using DSM-5 symptoms in light of the most updated PTSD models in the literature. The study investigated and determined the best fitted PTSD models using DSM-5 PTSD criteria symptoms. Confirmatory factor analysis (CFA) was conducted to examine model fit using the Secondary Traumatic Stress Scale in 241 registered and practicing Filipino nurses (166 females and 75 males) who worked in the Philippines and gave direct nursing services to patients. Based on multiple fit indices, the results showed the 7-factor hybrid model, comprising of intrusion, avoidance, negative affect, anhedonia, externalizing behavior, anxious arousal, and dysphoric arousal factors has excellent fit to STS. This model asserts that: (1) hyperarousal criterion needs to be divided into anxious and dysphoric arousal factors; (2) symptoms characterizing negative and positive affect need to be separated to two separate factors, and; (3) a new factor would categorize externalized, self-initiated impulse and control-deficit behaviors. Comparison of nested and non-nested models showed Hybrid model to have superior fit over other models. The specificity of the symptom structure of STS based on DSM-5 PTSD criteria suggests having more specific interventions addressing the more elaborate symptom-groupings that would alleviate the condition of nurses exposed to STS on a daily basis.
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35
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Yang H, Wang L, Cao C, Cao X, Fang R, Zhang J, Elhai JD. The underlying dimensions of DSM-5 PTSD symptoms and their relations with anxiety and depression in a sample of adolescents exposed to an explosion accident. Eur J Psychotraumatol 2017; 8:1272789. [PMID: 28326161 PMCID: PMC5328312 DOI: 10.1080/20008198.2016.1272789] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 11/16/2016] [Accepted: 12/09/2016] [Indexed: 11/21/2022] Open
Abstract
Background: A large number of empirical studies pertaining to the latent dimensions of DSM-5 PTSD symptoms have accumulated. However, there is still a lack of studies specific to youths. Objective: This study sought to investigate the latent dimensions of DSM-5 PTSD symptoms in a sample of adolescents exposed to an explosion accident. Method: Participants were 836 students (407 females and 428 males). Self-reported measures including the PTSD Checklist for DSM-5 and the anxiety and depression subscales of the 21-item Depression Anxiety Stress Scale were administered to participants. Confirmatory factor analysis (CFA) was implemented to test competing factor models. Results: A seven-factor model composed of intrusion, avoidance, negative affect, anhedonia, externalizing behaviours, anxious arousal and dysphoric arousal factors emerged as the best fitting model, and PTSD's factors displayed distinguishable correlations with external measures of anxiety and depression. Conclusions: The findings provide and extend empirical evidence supporting the newly refined seven-factor hybrid model of DSM-5 PTSD symptoms, and have implications for further trauma-related clinical practice and research.
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Affiliation(s)
- Haibo Yang
- Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Academy of Psychology and Behavior, Tianjin Normal University, Tianjin, China
| | - Li Wang
- Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Chengqi Cao
- Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xing Cao
- Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Ruojiao Fang
- Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jianxin Zhang
- Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences , Beijing , China
| | - Jon D Elhai
- Department of Psychology, and Department of Psychiatry, University of Toledo , Toledo , OH , USA
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Durham TA, Byllesby BM, Armour C, Forbes D, Elhai JD. Relations between anger and DSM-5 posttraumatic stress disorder symptoms. Psychiatry Res 2016; 244:403-9. [PMID: 27525831 DOI: 10.1016/j.psychres.2016.08.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 07/27/2016] [Accepted: 08/04/2016] [Indexed: 11/28/2022]
Abstract
The present study investigated the relationship between posttraumatic stress disorder (PTSD) and anger. Anger co-occurring with PTSD is found to have a severe effect across a wide range of traumatic experiences, making this an important relationship to examine. The present study utilized data regarding dimensions of PTSD symptoms and anger collected from a non-clinical sample of 247 trauma-exposed participants. Confirmatory factor analysis (CFA) was used to determine the underlying factor structure of both PTSD and anger by examining anger in the context of three models of PTSD. Results indicate that a five-factor representation of PTSD and one-factor representation of anger fit the data best. Additionally, anger demonstrated a strong relationship with the dysphoric arousal and negative alterations in cognitions and mood (NACM) factors; and dysphoric arousal was differentially related to anger. Clinical implications include potential need to reevaluate PTSD's diagnostic symptom structure and highlight the potential need to target and treat comorbid anger in individuals with PTSD. In regard to research, these results support the heterogeneity of PTSD.
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Affiliation(s)
- Tory A Durham
- Department of Psychology, University of Toledo, Toledo, OH, USA
| | | | - Cherie Armour
- School of Psychology, University of Ulster, Coleraine Campus, Northern Ireland, UK
| | - David Forbes
- Australian Centre for Posttraumatic Mental Health, Melbourne, Australia; Department of Psychiatry, University of Melbourne, Melbourne, Australia
| | - Jon D Elhai
- Department of Psychology, University of Toledo, Toledo, OH, USA; Department of Psychiatry, University of Toledo, Toledo, OH, USA. http://www.jon-elhai.com
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37
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Arbona C, Fan W, Noor N. Factor structure and external correlates of posttraumatic stress disorder symptoms among African American firefighters. Psychol Res Behav Manag 2016; 9:201-9. [PMID: 27563263 PMCID: PMC4986676 DOI: 10.2147/prbm.s113615] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
This study compared the relative goodness of fit of three well-established factorial models of posttraumatic stress disorder (PTSD) symptoms among 477 African American male firefighters in a large city in the US. The compared models were the two four-factor emotional numbing and dysphoria models and a five-factor dysphoric arousal model. The study also examined the convergent and discriminant validity of PTSD symptom clusters in relation to depression and alcohol dependence symptoms. Both the emotional numbing and dysphoric arousal PTSD models provided a superior fit to the data compared to the dysphoria model. Findings also indicated a good fit for factor models that included PTSD, depression, and alcohol dependence latent factors, which provides support for the specificity of PTSD symptom clusters. Depression symptoms were more strongly correlated with PTSD symptom clusters than alcohol dependence. In the dysphoric arousal model, depression and alcohol dependence were equally related to the emotional numbing and dysphoric arousal clusters; however, both depression and alcohol dependence were more highly correlated with dysphoric arousal than with anxious arousal. Even though the emotional numbing and dysphoric arousal models demonstrated a superior fit to the data, the four-factor dysphoria model may provide a more parsimonious representation of PTSD's latent structure than the five-factor dysphoric arousal model. In conclusion, this study extends support for the well-established PTSD symptom factor models among African Americans, a population with whom these models had not been examined earlier.
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Affiliation(s)
- Consuelo Arbona
- Department of Psychological, Health, and Learning Sciences, University of Houston, Houston, TX, USA
| | - Weihua Fan
- Department of Psychological, Health, and Learning Sciences, University of Houston, Houston, TX, USA
| | - Nausheen Noor
- Department of Psychological, Health, and Learning Sciences, University of Houston, Houston, TX, USA
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38
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Kerig PK, Bennett DC, Chaplo SD, Modrowski CA, McGee AB. Numbing of Positive, Negative, and General Emotions: Associations With Trauma Exposure, Posttraumatic Stress, and Depressive Symptoms Among Justice-Involved Youth. J Trauma Stress 2016; 29:111-9. [PMID: 27077492 DOI: 10.1002/jts.22087] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 11/11/2015] [Accepted: 01/14/2016] [Indexed: 02/06/2023]
Abstract
Increasing attention has been drawn to the symptom of emotional numbing in the phenomenology of posttraumatic stress disorder (PTSD), particularly regarding its implications for maladaptive outcomes in adolescence such as delinquent behavior. One change in the definition of emotional numbing according to the Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM-5; American Psychiatric Association, 2013) was the limitation to the numbing of positive emotions. Previous research with youth, however, has implicated general numbing or numbing of negative emotions in PTSD, whereas numbing of positive emotions may overlap with other disorders, particularly depression. Consequently, the goal of this study was to investigate whether numbing of positive emotions was associated with PTSD symptoms above and beyond numbing of negative emotions, general emotional numbing, or depressive symptoms among at-risk adolescents. In a sample of 221 detained youth (mean age = 15.98 years, SD = 1.25; 50.7% ethnic minority), results of hierarchical multiple regressions indicated that only general emotional numbing and numbing of anger accounted for significant variance in PTSD symptoms (total R(2) = .37). In contrast, numbing of sadness and positive emotions were statistical correlates of depressive symptoms (total R(2) = .24). Further tests using Hayes' Process macro showed that general numbing, 95% CI [.02, .45], and numbing of anger, 95% CI [.01, .42], demonstrated indirect effects on the association between trauma exposure and PTSD symptoms.
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Affiliation(s)
- Patricia K Kerig
- Department of Psychology, University of Utah, Salt Lake City, Utah, USA
| | - Diana C Bennett
- Department of Psychology, University of Utah, Salt Lake City, Utah, USA
| | - Shannon D Chaplo
- Department of Psychology, University of Utah, Salt Lake City, Utah, USA
| | | | - Andrew B McGee
- Department of Psychology, University of Utah, Salt Lake City, Utah, USA
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39
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Liu L, Wang L, Cao C, Qing Y, Armour C. Testing the dimensional structure of DSM-5 posttraumatic stress disorder symptoms in a nonclinical trauma-exposed adolescent sample. J Child Psychol Psychiatry 2016; 57:204-12. [PMID: 26358088 DOI: 10.1111/jcpp.12462] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/05/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND The current study investigated the underlying dimensionality of DSM-5 posttraumatic stress disorder (PTSD) symptoms in a trauma-exposed Chinese adolescent sample using a confirmatory factor analytic (CFA) alternative model approach. METHODS The sample consisted of 559 students (242 females and 314 males) ranging in age from 12 to 18 years (M = 15.8, SD = 1.3). Participants completed the PTSD Checklist for DSM-5, the Major Depression Disorder and Panic Disorder subscales of the Revised Children's Anxiety and Depression Scale, and the Aggressive Behavior subscale of the Youth Self-Report. RESULTS Confirmatory factor analytic results indicated that a seven-factor model comprised of intrusion, avoidance, negative affect, anhedonia, externalizing behavior, anxious arousal, and dysphoric arousal factors emerged as the best-fitting model. Further analyses showed that the external measures of psychopathological variables including major depressive disorder, panic disorder, and aggressive behavior were differentially associated with the resultant factors. CONCLUSIONS These findings support and extend previous findings for the newly refined seven-factor hybrid model, and carry clinical and research implications for trauma-related psychopathology.
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Affiliation(s)
- Liyong Liu
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China.,Center for Disease Control and Prevention of Shijingshan District, Beijing, China
| | - Li Wang
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Chengqi Cao
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yulan Qing
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Cherie Armour
- Psychology Research Institute, Ulster University, Coleraine, UK
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Carragher N, Sunderland M, Batterham PJ, Calear AL, Elhai JD, Chapman C, Mills K. Discriminant validity and gender differences in DSM-5 posttraumatic stress disorder symptoms. J Affect Disord 2016; 190:56-67. [PMID: 26480212 DOI: 10.1016/j.jad.2015.09.071] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/16/2015] [Accepted: 09/18/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND The posttraumatic stress disorder (PTSD) literature is replete with investigations of factor structure, however, few empirical studies have examined discriminant validity and the moderating role of gender on factor structure and symptom expression. This study aimed to address these gaps. METHODS An online, population-based study of 3175 Australian adults was conducted. This study analyzed data from 642 participants who reported a traumatic event. Overall, 10.2% (13.4% females, 7.6% males) met diagnostic criteria for current PTSD. RESULTS Confirmatory factor analyses indicated that eight factor models provided excellent fit to the data. The DSM-5 model, anhedonia and hybrid models provided strong fit to the data, based on statistical fit indices and parsimony. The models' factors were significantly associated with a number of external correlates. Factor structure was gender invariant for the three models, albeit significant latent mean-level differences were apparent in relation to the intrusion/re-experiencing and alterations in arousal and reactivity factors. Bonferroni-adjusted Wald chi-square tests indicated significant gender differences in four DSM-5 PTSD symptoms: females reported significantly higher rates of negative beliefs, diminished interest, restricted affect and sleep disturbance symptoms compared to men. LIMITATIONS Response rate to the survey was low. However, the number of respondents who completed the survey was high and population weights were employed to account for self-selection biases and aid generalizability. CONCLUSIONS The findings provide support for the DSM-5, anhedonia and hybrid models compared to alternative models based on DSM-5 symptoms. Discriminant validity analyses indicated similar patterns of significant associations with the transdiagnostic factors, potentially suggesting that all the PTSD factors are related to non-specific distress. Further research investigating how gender influences PTSD symptom expression is warranted, including possible gender differences in symptom item interpretation.
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Affiliation(s)
- Natacha Carragher
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, Australia.
| | - Matthew Sunderland
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, Australia
| | - Philip J Batterham
- National Institute for Mental Health Research, Australian National University, Canberra, Australia
| | - Alison L Calear
- National Institute for Mental Health Research, Australian National University, Canberra, Australia
| | - Jon D Elhai
- Department of Psychology, University of Toledo, United States
| | - Catherine Chapman
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, Australia
| | - Katherine Mills
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, Australia
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41
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Armour C, Műllerová J, Elhai JD. A systematic literature review of PTSD's latent structure in the Diagnostic and Statistical Manual of Mental Disorders: DSM-IV to DSM-5. Clin Psychol Rev 2015; 44:60-74. [PMID: 26761151 DOI: 10.1016/j.cpr.2015.12.003] [Citation(s) in RCA: 169] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 11/20/2015] [Accepted: 12/17/2015] [Indexed: 10/22/2022]
Abstract
The factor structure of posttraumatic stress disorder (PTSD) has been widely researched, but consensus regarding the exact number and nature of factors is yet to be reached. The aim of the current study was to systematically review the extant literature on PTSD's latent structure in the Diagnostic and Statistical Manual of Mental Disorders (DSM) in order to identify the best-fitting model. One hundred and twelve research papers published after 1994 using confirmatory factor analysis and DSM-based measures of PTSD were included in the review. In the DSM-IV literature, four-factor models received substantial support, but the five-factor Dysphoric arousal model demonstrated the best fit, regardless of gender, measurement instrument or trauma type. The recently proposed DSM-5 PTSD model was found to be a good representation of PTSD's latent structure, but studies analysing the six- and seven-factor models suggest that the DSM-5 PTSD factor structure may need further alterations.
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Affiliation(s)
- Cherie Armour
- School of Psychology, Ulster University, Coleraine, Northern Ireland, UK.
| | - Jana Műllerová
- School of Psychology, Ulster University, Coleraine, Northern Ireland, UK
| | - Jon D Elhai
- Department of Psychology, University of Toledo, Toledo, OH, USA; Department of Psychiatry, University of Toledo, Toledo, OH, USA
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Konecky B, Meyer EC, Kimbrel NA, Morissette SB. The structure of DSM-5 posttraumatic stress disorder symptoms in war veterans. ANXIETY STRESS AND COPING 2015; 29:497-506. [PMID: 26275127 DOI: 10.1080/10615806.2015.1081178] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND AND OBJECTIVES The present research examined the underlying factor structure of posttraumatic stress disorder (PTSD) as conceptualized in the recently published fifth edition of the Diagnostic and statistical manual of mental disorders (DSM-5). DESIGN Participants were 258 trauma-exposed Iraq/Afghanistan war veterans. METHODS A self-report measure of PTSD symptoms was administered to all participants and confirmatory factor analysis (CFA) was used to compare several different models of PTSD. RESULTS CFA revealed that the best-fitting model was a six-factor model in which symptoms loaded onto the factors of intrusion, avoidance, negative affect, anhedonia, dysphoric arousal, and anxious arousal. CONCLUSIONS These findings have important implications for ongoing conceptualization of PTSD and suggest that additional modifications to the diagnostic criteria for PTSD may still be warranted to more accurately reflect the underlying structure of PTSD symptoms.
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Affiliation(s)
- Brian Konecky
- a Department of Veterans Affairs VISN 17 , Center of Excellence for Research on Returning War Veterans , Waco , TX , USA.,b Central Texas Veterans Healthcare System , Temple , TX , USA.,c Texas A&M University Health Science Center , College of Medicine , College Station , TX , USA
| | - Eric C Meyer
- a Department of Veterans Affairs VISN 17 , Center of Excellence for Research on Returning War Veterans , Waco , TX , USA.,b Central Texas Veterans Healthcare System , Temple , TX , USA.,c Texas A&M University Health Science Center , College of Medicine , College Station , TX , USA
| | - Nathan A Kimbrel
- d Durham Veterans Affairs Medical Center , Durham , NC , USA.,e VA Mid-Atlantic Mental Illness Research Education, and Clinical Center , Durham , NC , USA.,f Department of Psychiatry and Behavioral Sciences , Duke `University Medical Center , Durham , NC , USA
| | - Sandra B Morissette
- a Department of Veterans Affairs VISN 17 , Center of Excellence for Research on Returning War Veterans , Waco , TX , USA.,b Central Texas Veterans Healthcare System , Temple , TX , USA.,c Texas A&M University Health Science Center , College of Medicine , College Station , TX , USA
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43
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Zelazny K, Simms LJ. Confirmatory factor analyses of DSM-5 posttraumatic stress disorder symptoms in psychiatric samples differing in Criterion A status. J Anxiety Disord 2015; 34:15-23. [PMID: 26103594 DOI: 10.1016/j.janxdis.2015.05.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 04/22/2015] [Accepted: 05/15/2015] [Indexed: 11/27/2022]
Abstract
We examined the symptom structure of posttraumatic stress disorder (PTSD), as defined by American Psychiatric Association (2013. Diagnostic and statistical manual of mental disorders (DSM-5) (5th ed.). Washington, DC: Author). DSM-5 introduced notable changes to PTSD criteria, and the structural impact of these changes is unclear. We conducted confirmatory factor analyses comparing seven commonly investigated or recently proposed PTSD models in a large sample of interviewed psychiatric outpatients reporting a Criterion A trauma (n = 310) or a sub-threshold (non-Criterion A) stressful life event (n = 284). A novel six-factor dysphoria model and recently proposed seven-factor hybrid model outperformed other models and fit the data equally well in both groups. Our results suggest equal fit for both models, although the six-factor model is more parsimonious. These results have implications for research regarding the mechanisms underlying and the treatments targeting PTSD.
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Affiliation(s)
- Kerry Zelazny
- Department of Psychology, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA.
| | - Leonard J Simms
- Department of Psychology, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
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44
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Wang L, Zhang L, Armour C, Cao C, Qing Y, Zhang J, Liu P, Zhang B, Wu Q, Zhao Z, Fan G. Assessing the underlying dimensionality of DSM-5 PTSD symptoms in Chinese adolescents surviving the 2008 Wenchuan earthquake. J Anxiety Disord 2015; 31:90-7. [PMID: 25768398 DOI: 10.1016/j.janxdis.2015.02.006] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 02/14/2015] [Accepted: 02/20/2015] [Indexed: 11/25/2022]
Abstract
By analyzing data yielded from a sample of Chinese adolescents surviving a high-intensity earthquake, this study investigated the underlying dimensionality of DSM-5 PTSD symptoms. The sample included 743 traumatized middle school students (396 females and 332 males) aged 11-17 years (mean=13.6, SD=1.0). Results of confirmatory factor analysis showed that an intercorrelated seven-factor model comprised of intrusion, avoidance, negative affect, anhedonia, externalizing behaviors, anxious arousal, and dysphoric arousal factors provided a significant better representation of DSM-5 PTSD symptoms than other alternative models. Further analyses indicated that external measures of major depression disorder and panic disorder symptoms displayed unique associations with four PTSD factors. The findings provide further support for the newly proposed seven-factor model of DSM-5 PTSD symptoms, add to very limited empirical knowledge on the latent structure of DSM-5 PTSD symptoms among adolescents, and carry implications for further refinement of the current classifications of PTSD symptoms and further clinical practice and research on posttraumatic stress symptomatology.
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Affiliation(s)
- Li Wang
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
| | - Lingmin Zhang
- Department of Psychology, Hebei Normal University, Shijiazhuang, Hebei, China
| | - Cherie Armour
- Psychology Research Institute, University of Ulster, Coleraine, Northern Ireland, UK
| | - Chengqi Cao
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Graduate University of Chinese Academy of Sciences, Beijing, China
| | - Yulan Qing
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Graduate University of Chinese Academy of Sciences, Beijing, China
| | - Jianxin Zhang
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Ping Liu
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Graduate University of Chinese Academy of Sciences, Beijing, China; People's Hospital of Deyang City, Deyang, Sichuan, China
| | - Biao Zhang
- People's Hospital of Deyang City, Deyang, Sichuan, China
| | - Qi Wu
- People's Hospital of Deyang City, Deyang, Sichuan, China
| | - Zhihong Zhao
- Hanwang People's Hospital, Deyang, Sichuan, China
| | - Gaolin Fan
- Hanwang People's Hospital, Deyang, Sichuan, China
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45
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The relationship between response inhibition and posttraumatic stress symptom clusters in adolescent earthquake survivors: an event-related potential study. Sci Rep 2015; 5:8844. [PMID: 25740732 PMCID: PMC4350076 DOI: 10.1038/srep08844] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 02/05/2015] [Indexed: 11/18/2022] Open
Abstract
Posttraumatic stress disorder (PTSD) patients experience impaired response inhibition. Little is known about the relationship between response inhibition abnormalities and distinct PTSD symptom clusters. This study investigated the relationship between response inhibition processing and a five-factor model of posttraumatic stress symptomatology in adolescents. The event-related potentials of 54 unmedicated adolescent earthquake survivors (age 15–18 years) were recorded as they completed a Go/NoGo task. The PTSD Checklist-Specific Stressor Version (PCL-S) was used to assess PTSD symptoms. Regression analyses were conducted to examine the associations between the five symptom-cluster model and response inhibition processing. The results revealed that the avoidance symptom cluster score, but not the numbing or other clusters' scores, was positively associated with NoGo-P3 latency. These results suggest that a specific PTSD symptom cluster—avoidance—has a distinct association with the slowed speed of the late step of response inhibition processing, i.e., decision or success of response inhibition in adolescent earthquake survivors.
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46
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Armour C, Tsai J, Durham TA, Charak R, Biehn TL, Elhai JD, Pietrzak RH. Dimensional structure of DSM-5 posttraumatic stress symptoms: support for a hybrid Anhedonia and Externalizing Behaviors model. J Psychiatr Res 2015; 61:106-13. [PMID: 25479765 DOI: 10.1016/j.jpsychires.2014.10.012] [Citation(s) in RCA: 235] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 10/01/2014] [Accepted: 10/30/2014] [Indexed: 11/19/2022]
Abstract
Several revisions to the symptom clusters of posttraumatic stress disorder (PTSD) have been made in the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). Central to the focus of this study was the revision of PTSD's tripartite structure in DSM-IV into four symptom clusters in DSM-5. Emerging confirmatory factor analytic (CFA) studies have suggested that DSM-5 PTSD symptoms may be best represented by one of two 6-factor models: (1) an Externalizing Behaviors model characterized by a factor which combines the irritability/anger and self-destructive/reckless behavior items; and (2) an Anhedonia model characterized by items of loss of interest, detachment, and restricted affect. The current study conducted CFAs of DSM-5 PTSD symptoms assessed using the PTSD Checklist for DSM-5 (PCL-5) in two independent and diverse trauma-exposed samples of a nationally representative sample of 1484 U.S. veterans and a sample of 497 Midwestern U.S. university undergraduate students. Relative fits of the DSM-5 model, the DSM-5 Dysphoria model, the DSM-5 Dysphoric Arousal model, the two 6-factor models, and a newly proposed 7-factor Hybrid model, which consolidates the two 6-factor models, were evaluated. Results revealed that, in both samples, both 6-factor models provided significantly better fit than the 4-factor DSM-5 model, the DSM-5 Dysphoria model and the DSM-5 Dysphoric Arousal model. Further, the 7-factor Hybrid model, which incorporates key features of both 6-factor models and is comprised of re-experiencing, avoidance, negative affect, anhedonia, externalizing behaviors, and anxious and dysphoric arousal symptom clusters, provided superior fit to the data in both samples. Results are discussed in light of theoretical and empirical support for the latent structure of DSM-5 PTSD symptoms.
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Affiliation(s)
- Cherie Armour
- Psychology Research Institute, University of Ulster, Coleraine, Northern Ireland, UK.
| | - Jack Tsai
- United States Department of Veterans Affairs New England Mental Illness Research, Education, and Clinical Center, West Haven, CT, USA; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | | | - Ruby Charak
- Department of Psychology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | | | - Jon D Elhai
- Department of Psychology, University of Toledo, USA; Department of Psychiatry, University of Toledo, USA
| | - Robert H Pietrzak
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA; United States Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, Clinical Neurosciences Division, VA Connecticut Healthcare System, West Haven, CT, USA
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47
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Hafstad GS, Dyb G, Jensen TK, Steinberg AM, Pynoos RS. PTSD prevalence and symptom structure of DSM-5 criteria in adolescents and young adults surviving the 2011 shooting in Norway. J Affect Disord 2014; 169:40-6. [PMID: 25129534 DOI: 10.1016/j.jad.2014.06.055] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 06/02/2014] [Accepted: 06/30/2014] [Indexed: 11/15/2022]
Abstract
BACKGROUND Diagnostic criteria for Posttraumatic Stress Disorder (PTSD) have been revised for DSM-5. Two key changes include alteration of the clustering of PTSD symptoms and new PTSD symptom criteria related to negative alterations in cognition and mood. In this study, we empirically investigated these changes. METHODS We interviewed 325 adolescents and young adults who survived the 2011 youth camp shooting at Utøya Island, Norway. The UCLA PTSD Reaction Index for DSM-IV was used to assess symptoms of PTSD. In addition, 11 questions were added to assess the four new symptom criteria within the new DSM-5 symptom categories. RESULTS PTSD prevalence did not differ significantly whether DSM-IV (11.1%) or DSM-5 (11.7%) criteria were used and the Cohen׳s Kappa for consistency between the diagnoses was 0.061. Confirmatory factor analyses showed that the four-factor structure of the DSM-5 fit the data adequately according to the conceptual model outlined. LIMITATIONS The homogeneity of this sample of highly exposed subjects may preclude generalization to less severely exposed groups. Also, we did not assess criterion G in regard to symptoms causing clinically significant distress and functional impairment. CONCLUSION The prevalence of PTSD was quite similar regardless of diagnostic system. The relatively low concordance between the diagnoses has implications for eligibility for a diagnosis of PTSD.
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Affiliation(s)
| | - Grete Dyb
- Norwegian Centre for Violence and Traumatic Stress Studies, Oslo, Norway
| | - Tine K Jensen
- Norwegian Centre for Violence and Traumatic Stress Studies, Oslo, Norway
| | - Alan M Steinberg
- UCLA/Duke University National Center for Child Traumatic Stress, Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, USA
| | - Robert S Pynoos
- UCLA/Duke University National Center for Child Traumatic Stress, Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, USA
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48
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Charak R, Armour C, Elklit A, Angmo D, Elhai JD, Koot HM. Factor structure of PTSD, and relation with gender in trauma survivors from India. Eur J Psychotraumatol 2014; 5:25547. [PMID: 25413575 PMCID: PMC4247496 DOI: 10.3402/ejpt.v5.25547] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 10/01/2014] [Accepted: 10/09/2014] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The factor structure of posttraumatic stress disorder (PTSD) has been extensively studied in Western countries. Some studies have assessed its factor structure in Asia (China, Sri Lanka, and Malaysia), but few have directly assessed the factor structure of PTSD in an Indian adult sample. Furthermore, in a largely patriarchal society in India with strong gender roles, it becomes imperative to assess the association between the factors of PTSD and gender. OBJECTIVE The purpose of the present study was to assess the factor structure of PTSD in an Indian sample of trauma survivors based on prevailing models of PTSD defined in the DSM-IV-TR (APA, 2000), and to assess the relation between PTSD factors and gender. METHOD The sample comprised of 313 participants (55.9% female) from Jammu and Kashmir, India, who had experienced a natural disaster (N=200) or displacement due to cross-border firing (N=113). RESULTS Three existing PTSD models-two four-factor models (Emotional Numbing and Dysphoria), and a five-factor model (Dysphoric Arousal)-were tested using Confirmatory Factor Analysis with addition of gender as a covariate. The three competing models had similar fit indices although the Dysphoric Arousal model fit significantly better than Emotional Numbing and Dysphoria models. Gender differences were found across the factors of Re-experiencing and Anxious arousal. CONCLUSIONS Findings indicate that the Dysphoric Arousal model of PTSD was the best model; albeit the fit indices of all models were fairly similar. Compared to males, females scored higher on factors of Re-experiencing and Anxious arousal. Gender differences found across two factors of PTSD are discussed in light of the social milieu in India.
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Affiliation(s)
- Ruby Charak
- Department of Developmental Psychology, VU University, Amsterdam, The Netherlands; Department of Psychology, University of Jammu, Jammu, India
| | - Cherie Armour
- School of Psychology, University of Ulster, Coleraine, UK;
| | - Ask Elklit
- The National Centre for Psychotraumatology, University of Southern Denmark, Odense, Denmark
| | - Disket Angmo
- Government Eliezer Joldan Memorial College, Leh, India
| | - Jon D Elhai
- Department of Psychology, University of Toledo, Toledo, OH, USA; Department of Psychiatry, University of Toledo, Toledo, OH, USA
| | - Hans M Koot
- Department of Developmental Psychology, VU University, Amsterdam, The Netherlands
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49
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Demirchyan A, Goenjian AK, Khachadourian V. Factor Structure and Psychometric Properties of the Posttraumatic Stress Disorder (PTSD) Checklist and DSM-5 PTSD Symptom Set in a Long-Term Postearthquake Cohort in Armenia. Assessment 2014; 22:594-606. [PMID: 25348800 DOI: 10.1177/1073191114555523] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Psychometric properties of the Armenian-language posttraumatic stress disorder (PTSD) Checklist-Civilian version (PCL-C) and the DSM-5 PTSD symptom set were examined in a long-term cohort of earthquake survivors. In 2012, 725 survivors completed the instruments. Item-/scale-level analysis and confirmatory factor analysis (CFA) were performed for both scales. In addition, exploratory factor analysis (EFA) was conducted for DSM-5 symptoms. Also, the differential internal versus external specificity of PTSD symptom clusters taken from the most supported PTSD structural models was examined. Both scales had Cronbach's alpha greater than .9. CFA of PCL-C structure demonstrated an excellent fit by a four-factor (reexperiencing, avoidance, numbing, and hyperarousal) model known as numbing model; however, a superior fit was achieved by a five-factor model (Elhai et al.). EFA yielded a five-factor structure for DSM-5 symptoms with the aforementioned four domains plus a negative state domain. This model achieved an acceptable fit during CFA, whereas the DSM-5 criteria-based model did not. The Armenian-language PCL-C was recommended as a valid PTSD screening tool. The study findings provided support to the proposed new classification of common mental disorders, where PTSD, depression, and generalized anxiety are grouped together as a subclass of distress disorders. Recommendations were made to further improve the PTSD diagnostic criteria.
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Affiliation(s)
| | - Armen K Goenjian
- UCLA/Duke University National Center for Child Traumatic Stress, University of California, Los Angeles, CA, USA Collaborative Neuroscience Network, Garden Grove, CA, USA
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50
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Liu S, Wang L, Cao C, Zhang J. The factor structure of posttraumatic stress disorder symptoms in patients with traumatic spinal cord injuries. Arch Psychiatr Nurs 2014; 28:301-4. [PMID: 25439970 DOI: 10.1016/j.apnu.2014.05.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 05/17/2014] [Accepted: 05/30/2014] [Indexed: 10/25/2022]
Abstract
The current study investigated the factor structure of posttraumatic stress disorder (PTSD) symptoms in a sample of 256 patients with traumatic spinal cord injuries (SCI) in China. The confirmatory factor analysis results showed that a five-factor model composed of intrusion, avoidance, emotional numbing, dysphoric arousal, and anxious arousal fits the data significantly better than the tripartite DSM-IV model and the two well-supported four-factor models, and the C3 symptom (inability to recall important aspect of the trauma) loaded weakly on its corresponding factor. Implications and limitations for the results are discussed.
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Affiliation(s)
- Songhuai Liu
- Faculty of Rehabilitation Medicine, Capital Medical University, China; Department of Psychology, Beijing Bo'ai Hospital, China Rehabilitation Research Center, China; Department of Clinical Psychology, Capital Medical University, China.
| | - Li Wang
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
| | - Chengqi Cao
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Jianxin Zhang
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
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