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 odds
2023
Purpose in life and physical health in older U.S. military veterans: Cross-sectional results from the National Health and Resilience in Veterans Study
Fischer I, Feldman D, Tsai J, Harpaz-Rotem I, McCutcheon V, Schulenberg S, Pietrzak R. Purpose in life and physical health in older U.S. military veterans: Cross-sectional results from the National Health and Resilience in Veterans Study. Preventive Medicine 2023, 170: 107495. PMID: 37001606, DOI: 10.1016/j.ypmed.2023.107495.Peer-Reviewed Original ResearchConceptsPhysical health conditionsPhysical healthNational HealthDaily livingVeterans StudyHealth conditionsHigher bodily painPhysical role limitationsGeneral population studiesOverall self-reported healthPhysical health difficultiesHigher PILSelf-reported healthOlder U.S. veteransU.S. military veteransBodily painRole limitationsPhysical functioningSleep disordersInstrumental activitiesSelf-report assessmentsCurrent prevalenceCross-sectional resultsU.S. veteransMost veteransIdentifying 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
2022
Delirium screening in an acute care setting with a machine learning classifier based on routinely collected nursing data: A model development study
Spiller TR, Tufan E, Petry H, Böttger S, Fuchs S, Duek O, Ben-Zion Z, Korem N, Harpaz-Rotem I, von Känel R, Ernst J. Delirium screening in an acute care setting with a machine learning classifier based on routinely collected nursing data: A model development study. Journal Of Psychiatric Research 2022, 156: 194-199. PMID: 36252349, DOI: 10.1016/j.jpsychires.2022.10.018.Peer-Reviewed Original ResearchConceptsDelirium Observation ScaleAcute care settingNursing dataCare settingsSingle tertiary teaching hospitalPatients 18 yearsTertiary teaching hospitalDelirium prediction modelSuch screening programsDelirium screeningAcute careMean ageTeaching hospitalInclusion criteriaScreening programDeliriumPatientsClinical practiceTotal scoreDemographic characteristicsCharacteristic curveScreening procedureModel development studiesRiskAdditional measuresPerceived Purpose in Life, Mental Health, and Suicidality in Older U.S. Military Veterans: Results From the National Health and Resilience in Veterans Study
Fischer IC, Tsai J, Harpaz-Rotem I, McCutcheon VE, Schulenberg SE, Pietrzak RH. Perceived Purpose in Life, Mental Health, and Suicidality in Older U.S. Military Veterans: Results From the National Health and Resilience in Veterans Study. American Journal Of Geriatric Psychiatry 2022, 31: 87-93. PMID: 36253289, DOI: 10.1016/j.jagp.2022.09.010.Peer-Reviewed Original ResearchConceptsMental disordersNational HealthU.S. veteransVeterans StudyHigher PILSubstance use disordersOlder U.S. veteransU.S. military veteransMajor depressiveSelf-report assessmentsLower oddsCurrent prevalenceUse disordersMost veteransSuicide attemptsMental healthGeneralized anxietySuicidalityDisordersMilitary veteransVeteransPosttraumatic stressHealthOddsRepresentative sampleA comparison of methods to harmonize cortical thickness measurements across scanners and sites
Sun D, Rakesh G, Haswell CC, Logue M, Baird CL, O'Leary EN, Cotton AS, Xie H, Tamburrino M, Chen T, Dennis EL, Jahanshad N, Salminen LE, Thomopoulos SI, Rashid F, Ching CRK, Koch SBJ, Frijling JL, Nawijn L, van Zuiden M, Zhu X, Suarez-Jimenez B, Sierk A, Walter H, Manthey A, Stevens JS, Fani N, van Rooij SJH, Stein M, Bomyea J, Koerte IK, Choi K, van der Werff SJA, Vermeiren RRJM, Herzog J, Lebois LAM, Baker JT, Olson EA, Straube T, Korgaonkar MS, Andrew E, Zhu Y, Li G, Ipser J, Hudson AR, Peverill M, Sambrook K, Gordon E, Baugh L, Forster G, Simons RM, Simons JS, Magnotta V, Maron-Katz A, du Plessis S, Disner SG, Davenport N, Grupe DW, Nitschke JB, deRoon-Cassini TA, Fitzgerald JM, Krystal JH, Levy I, Olff M, Veltman DJ, Wang L, Neria Y, De Bellis MD, Jovanovic T, Daniels JK, Shenton M, van de Wee NJA, Schmahl C, Kaufman ML, Rosso IM, Sponheim SR, Hofmann DB, Bryant RA, Fercho KA, Stein DJ, Mueller SC, Hosseini B, Phan KL, McLaughlin KA, Davidson RJ, Larson CL, May G, Nelson SM, Abdallah CG, Gomaa H, Etkin A, Seedat S, Harpaz-Rotem I, Liberzon I, van Erp TGM, Quidé Y, Wang X, Thompson PM, Morey RA. A comparison of methods to harmonize cortical thickness measurements across scanners and sites. NeuroImage 2022, 261: 119509. PMID: 35917919, PMCID: PMC9648725, DOI: 10.1016/j.neuroimage.2022.119509.Peer-Reviewed Original ResearchRemodeling of the Cortical Structural Connectome in Posttraumatic Stress Disorder: Results From the ENIGMA-PGC Posttraumatic Stress Disorder Consortium
Sun D, Rakesh G, Clarke-Rubright EK, Haswell CC, Logue MW, O'Leary EN, Cotton AS, Xie H, Dennis EL, Jahanshad N, Salminen LE, Thomopoulos SI, Rashid FM, Ching CRK, Koch SBJ, Frijling JL, Nawijn L, van Zuiden M, Zhu X, Suarez-Jimenez B, Sierk A, Walter H, Manthey A, Stevens JS, Fani N, van Rooij SJH, Stein MB, Bomyea J, Koerte I, Choi K, van der Werff SJA, Vermeiren RRJM, Herzog JI, Lebois LAM, Baker JT, Ressler KJ, Olson EA, Straube T, Korgaonkar MS, Andrew E, Zhu Y, Li G, Ipser J, Hudson AR, Peverill M, Sambrook K, Gordon E, Baugh LA, Forster G, Simons RM, Simons JS, Magnotta VA, Maron-Katz A, du Plessis S, Disner SG, Davenport ND, Grupe D, Nitschke JB, deRoon-Cassini TA, Fitzgerald J, Krystal JH, Levy I, Olff M, Veltman DJ, Wang L, Neria Y, De Bellis MD, Jovanovic T, Daniels JK, Shenton ME, van de Wee NJA, Schmahl C, Kaufman ML, Rosso IM, Sponheim SR, Hofmann DB, Bryant RA, Fercho KA, Stein DJ, Mueller SC, Phan KL, McLaughlin KA, Davidson RJ, Larson C, May G, Nelson SM, Abdallah CG, Gomaa H, Etkin A, Seedat S, Harpaz-Rotem I, Liberzon I, Wang X, Thompson PM, Morey RA. Remodeling of the Cortical Structural Connectome in Posttraumatic Stress Disorder: Results From the ENIGMA-PGC Posttraumatic Stress Disorder Consortium. Biological Psychiatry Cognitive Neuroscience And Neuroimaging 2022, 7: 935-948. PMID: 35307575, PMCID: PMC9835553, DOI: 10.1016/j.bpsc.2022.02.008.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderCortical thicknessStructural covarianceComorbid depressionControl subjectsLarge effect sizesStress disorderEffect sizeTrauma-exposed control subjectsCase-control differencesCortical surface areaInflammatory processClinical dataResting-state functional connectivity networksPositive pairwise correlationsCortical differencesCortical regionsCortical neuroanatomyStress hormonesFunctional connectivity networksPTSD casesSmall effect sizesGroup differencesStructural networkStructural connectome
2021
Mindfulness as a Mediator Between Trauma Exposure and Mental Health Outcomes: Results From the National Health and Resilience in Veterans Study
Kachadourian LK, Harpaz-Rotem I, Tsai J, Southwick S, Pietrzak RH. Mindfulness as a Mediator Between Trauma Exposure and Mental Health Outcomes: Results From the National Health and Resilience in Veterans Study. Psychological Trauma Theory Research Practice And Policy 2021, 13: 223-230. PMID: 33475404, PMCID: PMC8500672, DOI: 10.1037/tra0000995.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderAlcohol use disorderLifetime traumaTrauma-related negative affectPresent momentVeterans StudyU.S. veteransTrauma-related experiencesSuicidal ideationTraumatic life eventsLifetime trauma burdenMental health outcomesQuality of lifeMental health problemsTrauma remindersNegative affectMindful attentionTrauma exposurePTSD symptomsMental health issuesTraumatic eventsCumulative traumaStress disorderNoncombat veteransLife events
2018
BDNF Val66Met polymorphism and posttraumatic stress symptoms in U.S. military veterans: Protective effect of physical exercise
Pitts BL, Whealin JM, Harpaz-Rotem I, Duman RS, Krystal JH, Southwick SM, Pietrzak RH. BDNF Val66Met polymorphism and posttraumatic stress symptoms in U.S. military veterans: Protective effect of physical exercise. Psychoneuroendocrinology 2018, 100: 198-202. PMID: 30388593, DOI: 10.1016/j.psyneuen.2018.10.011.Peer-Reviewed Original ResearchMeSH KeywordsAgedAmino Acid SubstitutionBrain-Derived Neurotrophic FactorCase-Control StudiesExerciseFemaleHumansMaleMethionineMiddle AgedMilitary PersonnelPolymorphism, Single NucleotideProtective FactorsResilience, PsychologicalSeverity of Illness IndexStress Disorders, Post-TraumaticUnited StatesValineVeteransConceptsMet allele carriersBDNF Val66Met polymorphismAllele carriersVal66Met polymorphismPhysical exerciseGreater severityPTSD symptomsU.S. military veteransTrauma burdenBrain-derived neurotrophic factor (BDNF) Val66Met polymorphismPast-month PTSD symptomsNeurotrophic factor Val66Met polymorphismMilitary veteransLifetime trauma burdenHigh trauma burdenVal/ValAdrenal (HPA) axis reactivityPosttraumatic stress disorder (PTSD) symptomsBDNF releaseCurrent PTSD symptomsProtective effectRe-experiencing symptomsAxis reactivityPosttraumatic stress symptomsSymptoms
2017
Oxytocin receptor gene polymorphisms, attachment, and PTSD: Results from the National Health and Resilience in Veterans Study
Sippel LM, Han S, Watkins LE, Harpaz-Rotem I, Southwick SM, Krystal JH, Olff M, Sherva R, Farrer LA, Kranzler HR, Gelernter J, Pietrzak RH. Oxytocin receptor gene polymorphisms, attachment, and PTSD: Results from the National Health and Resilience in Veterans Study. Journal Of Psychiatric Research 2017, 94: 139-147. PMID: 28715704, PMCID: PMC5605420, DOI: 10.1016/j.jpsychires.2017.07.008.Peer-Reviewed Original ResearchOne-Year Incidence and Predictors of Homelessness Among 300,000 U.S. Veterans Seen in Specialty Mental Health Care
Tsai J, Hoff RA, Harpaz-Rotem I. One-Year Incidence and Predictors of Homelessness Among 300,000 U.S. Veterans Seen in Specialty Mental Health Care. Psychological Services 2017, 14: 203-207. PMID: 28481605, DOI: 10.1037/ser0000083.Peer-Reviewed Original ResearchConceptsSpecialty mental health clinicsMental health clinicsHealth clinicsRetrospective cohort study designVeterans AffairsSpecialty mental health careCohort study designVA medical recordsDrug use disordersMental health careVA homeless servicesClinical predictorsProspective studyMedical recordsDisorders ClinicInternational ClassificationUse disordersVA facilitiesU.S. veteransEarly signsStudy designVA effortsClinicHealth careIncidencePsychotherapy Utilization and Retention in a National Sample of Veterans With PTSD
Doran JM, Pietrzak RH, Hoff R, Harpaz‐Rotem I. Psychotherapy Utilization and Retention in a National Sample of Veterans With PTSD. Journal Of Clinical Psychology 2017, 73: 1259-1279. PMID: 28186638, DOI: 10.1002/jclp.22445.Peer-Reviewed Original Research
2016
Hostility and telomere shortening among U.S. military veterans: Results from the National Health and Resilience in Veterans Study
Watkins LE, Harpaz-Rotem I, Sippel LM, Krystal JH, Southwick SM, Pietrzak RH. Hostility and telomere shortening among U.S. military veterans: Results from the National Health and Resilience in Veterans Study. Psychoneuroendocrinology 2016, 74: 251-257. PMID: 27689898, DOI: 10.1016/j.psyneuen.2016.09.006.Peer-Reviewed Original ResearchConceptsU.S. military veteransClinical variablesNational HealthTelomere lengthMilitary veteransMultivariable binary logistic regression analysisVeterans StudyAccelerated cellular agingBinary logistic regression analysisLogistic regression analysisU.S. veteran populationNon-veteran populationsAge-related disordersPolymerase chain reaction methodChronic disordersRisk factorsChain reaction methodQuantitative polymerase chain reaction methodVeteran populationU.S. veteransSecondary analysisTreatment effortsVeteransRegression analysisBiological ageLate-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
2015
“I Want to Come Home”: Vietnam-Era Veterans’ Presenting for Mental Health Care, Roughly 40 Years After Vietnam
Desai MU, Pavlo AJ, Davidson L, Harpaz-Rotem I, Rosenheck R. “I Want to Come Home”: Vietnam-Era Veterans’ Presenting for Mental Health Care, Roughly 40 Years After Vietnam. Psychiatric Quarterly 2015, 87: 229-239. PMID: 26156261, DOI: 10.1007/s11126-015-9382-2.Peer-Reviewed Original ResearchConceptsPhenomenological qualitative methodMental health clinicsExperiences of rejectionEveryday waysGovernmental institutionsPervasive stigmatizationVietnam-era veteransHealth clinicsQualitative methodsLongstanding experienceStrong bridgesSocial rejectionVeterans Health AdministrationVA Medical CenterMental health careOwn preferencesProblematic patternsExperienceVietnamMeaningLong processDiagnosis of PTSDCare seekingMedical CenterVeterans HomeMental Health Treatment for Older Veterans Newly Diagnosed with PTSD: A National Investigation
Smith NB, Cook JM, Pietrzak R, Hoff R, Harpaz-Rotem I. Mental Health Treatment for Older Veterans Newly Diagnosed with PTSD: A National Investigation. American Journal Of Geriatric Psychiatry 2015, 24: 201-212. PMID: 25772341, DOI: 10.1016/j.jagp.2015.02.001.Peer-Reviewed Original ResearchConceptsMental health treatmentPosttraumatic stress disorderOlder veteransVA healthcare systemHealth treatmentClinical characteristicsDecreased oddsNational administrative data setVeterans AffairsMental health service utilizationAppropriate mental health treatmentOdds of treatmentMental health visitsHealth service utilizationHealthcare systemPharmacy recordsHealth visitsCox regressionPsychiatric comorbidityPsychotherapy visitsService utilizationLarge cohortMedical appointmentsAdministrative data setsNew diagnosis
2014
Functional significance of a novel 7-factor model of DSM-5 PTSD symptoms: Results from the National Health and Resilience in Veterans Study
Pietrzak RH, Tsai J, Armour C, Mota N, Harpaz-Rotem I, Southwick SM. Functional significance of a novel 7-factor model of DSM-5 PTSD symptoms: Results from the National Health and Resilience in Veterans Study. Journal Of Affective Disorders 2014, 174: 522-526. PMID: 25556669, DOI: 10.1016/j.jad.2014.12.007.Peer-Reviewed Original ResearchConceptsQuality of lifePosttraumatic stress disorderDSM-5 PTSD symptomsPTSD symptomsNational HealthU.S. veteransSuicidal ideationVeterans StudySymptom clustersDysphoric arousal symptomsCross-sectional designFunctional outcomePsychiatric comorbidityClinical significancePTSD symptom clustersCurrent depressionDSM-5 PTSD symptom clustersPTSD phenotypeMental disordersSymptomsComorbid psychopathologyStress disorderFunctional correlatesStatistical ManualTreatment efforts
2013
Latent class analysis of personality disorders in adults with posttraumatic stress disorder: results from the National Epidemiologic Survey on Alcohol and Related Conditions.
Tsai J, Harpaz-Rotem I, Pilver CE, Wolf EJ, Hoff RA, Levy KN, Sareen J, Pietrzak RH. Latent class analysis of personality disorders in adults with posttraumatic stress disorder: results from the National Epidemiologic Survey on Alcohol and Related Conditions. The Journal Of Clinical Psychiatry 2013, 75: 276-84. PMID: 24345427, DOI: 10.4088/jcp.13m08466.Peer-Reviewed Original ResearchConceptsHealth-related qualityMental health-related qualityPosttraumatic stress disorderDSM-IV personality disordersNational Epidemiologic SurveyPersonality disorderDisorder classesEpidemiologic SurveyLower mental health-related qualityRelated conditionsComorbid Axis I disordersStress disorderTreatment of PTSDPTSD symptomsComorbid Axis I diagnosesAxis I comorbidityLatent class analysisCo-occurring personality disordersAxis I diagnosisAxis I DisordersTreatment characteristicsI disordersUS adultsLifetime diagnosisTreatment approachesPredominant typologies of psychopathology in the United States: A latent class analysis
El-Gabalawy R, Tsai J, Harpaz-Rotem I, Hoff R, Sareen J, Pietrzak RH. Predominant typologies of psychopathology in the United States: A latent class analysis. Journal Of Psychiatric Research 2013, 47: 1649-1657. PMID: 23978394, DOI: 10.1016/j.jpsychires.2013.07.028.Peer-Reviewed Original ResearchConceptsPopulation-based sampleSubstance use disordersAxis IU.S. adultsLatent class analysisUse disordersSuicide attemptsMental health-related qualityHealth-related qualityLifetime psychiatric disordersRates of moodAxis II disordersNational Epidemiologic SurveyPsychiatric comorbidityOverall high ratePsychiatric disordersEpidemiologic SurveyComorbid classesMental disordersClass analysisRelated conditionsAnxiety disordersBorderline/Personality disorderDisorders
2012
Health and Social Adjustment of Homeless Older Adults With a Mental Illness
Gordon RJ, Rosenheck RA, Zweig RA, Harpaz-Rotem I. Health and Social Adjustment of Homeless Older Adults With a Mental Illness. Psychiatric Services 2012, 63: 561-568. PMID: 22476721, DOI: 10.1176/appi.ps.201100175.Peer-Reviewed Original ResearchConceptsOlder homeless adultsPsychiatric symptomsMental illnessSubstance useOlder adultsHomeless adultsIntensive case management servicesMental healthYoung adultsSevere mental healthGeneral medical healthCase management servicesChi-square testSocial supportSubstance abuse problemsMixed-model analysisTreatment strategiesCommunity careThree monthsAge groupsSquare testYounger groupSpecific interventionsYounger counterpartsPhysical health