2024
Prevalence, Correlates, and Burden of Subthreshold PTSD in US Veterans.
Fischer I, Na P, Harpaz-Rotem I, Marx B, Pietrzak R. Prevalence, Correlates, and Burden of Subthreshold PTSD in US Veterans. The Journal Of Clinical Psychiatry 2024, 85 PMID: 39480145, DOI: 10.4088/jcp.24m15465.Peer-Reviewed Original ResearchConceptsSubthreshold posttraumatic stress disorderPosttraumatic stress disorderPosttraumatic stress disorder symptom clustersLifetime psychiatric disordersUS veteransUS military veteransSymptom-related distressStress disorderPsychiatric disordersSymptom clustersTreating veteransCriterion AMilitary veteransTraumatic eventsCognitive functionWorking case definitionMental healthCriterion FFunctional impairmentVeteransNationally representative sampleFunctional correlatesDisordersElevated oddsGreater oddsBarriers to Mental Health Care in US Military Veterans
Lewis C, Fischer I, Tsai J, Harpaz-Rotem I, Pietrzak R. Barriers to Mental Health Care in US Military Veterans. Psychiatric Quarterly 2024, 95: 367-383. PMID: 38940875, DOI: 10.1007/s11126-024-10078-7.Peer-Reviewed Original ResearchMental health careMental health treatmentHealth careHealth treatmentReduce barriersUS veteransNegative beliefsInstrumental barriersNational Health and ResiliencePromote engagementMental health servicesPopulation-based effortsUS military veteransNationally representative dataMultivariate logistic regressionPerceived stigmaHealth servicesSocial supportPsychiatric needsVeterans StudyPractical barriersLow purposeConclusionsNearly halfMilitary veteransCare
2023
Purpose in life protects against the development of suicidal thoughts and behaviors in U.S. veterans without a history of suicidality: A 10-year, nationally representative, longitudinal study
Fischer I, Nichter B, Feldman D, Na P, Tsai J, Harpaz-Rotem I, Schulenberg S, Pietrzak R. Purpose in life protects against the development of suicidal thoughts and behaviors in U.S. veterans without a history of suicidality: A 10-year, nationally representative, longitudinal study. Journal Of Affective Disorders 2023, 340: 551-554. PMID: 37557988, DOI: 10.1016/j.jad.2023.08.040.Peer-Reviewed Original ResearchConceptsIncident suicidal ideationAlcohol use disorderIncident suicide attemptsCurrent alcohol use disorderHistory of STBSuicidal ideationSuicide attemptsBaseline predictorsDaily livingPopulation-based prospective cohort studySuicidal thoughtsLow purposeCurrent posttraumatic stress disorderProspective cohort studyTraditional risk factorsLower annual household incomeMultivariable regression analysisEvidence-based interventionsUS military veteransPosttraumatic stress disorderAnnual household incomeCohort studyTrauma burdenRisk factorsNational HealthIdentifying significant correlates of purpose in life in older US military veterans: results from the national health and resilience in veterans study.
Fischer I, Feldman D, Tsai J, Harpaz-Rotem I, Lucas K, Schulenberg S, Pietrzak R. Identifying significant correlates of purpose in life in older US military veterans: results from the national health and resilience in veterans study. International Psychogeriatrics 2023, 35: 560-565. PMID: 36715004, DOI: 10.1017/s1041610222001223.Peer-Reviewed Original ResearchConceptsUS military veteransNational HealthMilitary veteransSignificant correlatesOlder US veteransAdverse health outcomesModifiable psychosocial factorsAdverse outcomesElastic net analysisUS veteransDepressive symptomsPsychosocial factorsHealth outcomesVeterans StudyPsychosocial variablesTreatment effortsCognitive outcomesCross-sectional dataVeteransOutcomesSocial supportCommunity integrationImportant correlatesHealthCorrelates
2021
Mental health and suicidal ideation in US military veterans with histories of COVID-19 infection
Na P, Tsai J, Harpaz-Rotem I, Pietrzak R. Mental health and suicidal ideation in US military veterans with histories of COVID-19 infection. BMJ Military Health 2021, 168: 15-19. PMID: 34035155, PMCID: PMC8154290, DOI: 10.1136/bmjmilitary-2021-001846.Peer-Reviewed Original ResearchConceptsStrong independent predictorUS military veteransSuicidal ideationIndependent predictorsCOVID-19COVID-related stressorsInternalising disordersPsychiatric conditionsProtective factorsMilitary veteransCOVID-19 infectionLogistic regression analysisPsychiatric symptom severityLower household incomeCurrent suicidal ideationSubstance use problemsProspective cohortMultivariable analysisTrauma burdenPositive screenUS veteransNational HealthPsychiatric symptomsPsychiatric disordersVeterans Study
2019
Posttraumatic Stress Disorder Symptoms, Functioning, and Suicidal Ideation in US Military Veterans: A Symptomics Approach.
Kachadourian LK, Harpaz-Rotem I, Tsai J, Southwick SM, Pietrzak RH. Posttraumatic Stress Disorder Symptoms, Functioning, and Suicidal Ideation in US Military Veterans: A Symptomics Approach. The Primary Care Companion For CNS Disorders 2019, 21 PMID: 31050228, DOI: 10.4088/pcc.18m02402.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderPositive affectMeasures of functioningCognitive functioningNegative thoughtsPTSD symptomsConcentration difficultiesSleep difficultiesTreatment of PTSDUS military veteransSeverity of PTSDPosttraumatic stress disorder (PTSD) symptomsSuicidal ideationDSM-5 PTSD symptomsMilitary veteransLifetime trauma burdenIrritability/aggressionHyperarousal symptomsDisorder symptomsStress disorderPsychogenic amnesiaPTSD diagnosisQuality of lifeMental functioningMost variance
2018
Locus of control in US combat veterans: Unique associations with posttraumatic stress disorder 5-factor model symptom clusters
Smith NB, Sippel LM, Presseau C, Rozek D, Mota N, Gordon C, Horvath M, Harpaz-Rotem I. Locus of control in US combat veterans: Unique associations with posttraumatic stress disorder 5-factor model symptom clusters. Psychiatry Research 2018, 268: 152-156. PMID: 30029062, DOI: 10.1016/j.psychres.2018.07.015.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderLocus of controlPTSD symptom clustersOverall PTSD symptomsAvoidance symptomsPTSD symptomsSymptom clustersStress disorderCombat veteransExternal locusCombat exposureCorrelates of PTSDSpecific PTSD symptom clustersTrauma-focused treatmentSelf-report measuresUS combat veteransIntervention effortsUnique associationUS military veteransExtreme scoresPotential correlatesMilitary veteransBivariate correlationsOnly avoidanceSignificant correlates
2016
Late-life exacerbation of PTSD symptoms in US veterans: results from the National Health and Resilience in Veterans Study.
Mota N, Tsai J, Kirwin PD, Harpaz-Rotem I, Krystal JH, Southwick SM, Pietrzak RH. Late-life exacerbation of PTSD symptoms in US veterans: results from the National Health and Resilience in Veterans Study. The Journal Of Clinical Psychiatry 2016, 77: 348-54. PMID: 27046308, DOI: 10.4088/jcp.15m10101.Peer-Reviewed Original ResearchConceptsOlder US veteransPosttraumatic stress disorderUS veteransPTSD symptomsNational HealthVeterans StudyMultivariable logistic regression modelWorst traumaDelayed-onset posttraumatic stress disorderExecutive dysfunctionWave 2Population-based dataUS military veteransLogistic regression modelsWave 1Cohort studySignificant exacerbationGreater severitySymptomsOlder ageStress disorderSelf-reported cognitive difficultiesPotential targetMilitary veteransLater life