Featured Publications
Clinical significance of novel 8-factor model of DSM-5 PTSD in national VA PTSD residential treatment data: Internally- v. externally-cued intrusions
Gross G, Spiller T, Duek O, Pietrzak R, Harpaz-Rotem I. Clinical significance of novel 8-factor model of DSM-5 PTSD in national VA PTSD residential treatment data: Internally- v. externally-cued intrusions. Journal Of Affective Disorders 2023, 328: 255-260. PMID: 36806596, DOI: 10.1016/j.jad.2023.02.046.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderPTSD symptomsDysphoric arousalDSM-5 posttraumatic stress disorderDSM-5 PTSD symptomsDistinct underlying processesSelf-report measuresGeneralized anxiety symptomsSuperior model fitPhysical health functioningCore defining featuresStructural equation modelingWorse emotional functioningAnxious arousalSymptoms of depressionNegative affectIntrusion symptomsGreater avoidanceEmotional functioningStress disorderAnxiety symptomsPTSD ChecklistIntrusion factorCross-sectional designGeneralized anxiety
2024
Unraveling PTSD: Symptom Cluster Change During and 1 Year After Veterans’ Residential PTSD Treatment
Gross G, Spiller T, Ben-Zion Z, Rubenstein A, Pietrzak R, Duek O, Hoff R, Harpaz-Rotem I. Unraveling PTSD: Symptom Cluster Change During and 1 Year After Veterans’ Residential PTSD Treatment. Psychological Trauma Theory Research Practice And Policy 2024 PMID: 38990694, DOI: 10.1037/tra0001734.Peer-Reviewed Original ResearchPosttraumatic stress disorderPosttraumatic stress disorder symptom clustersPosttraumatic stress disorder clustersSymptom clustersIntrusive symptomsResidential treatmentTreatment of posttraumatic stress disorderPosttraumatic stress disorder symptomsResidential PTSD treatmentPTSD symptom clustersNovel treatment interventionsDifferential treatment responseReduce symptom severityDifferential patterns of changeAvoidance symptomsPTSD treatmentTreatment gainsStress disorderVeterans AffairsSymptom severityCluster CTreatment interventionsCluster BIndividual symptomsCohort of veterans
2023
Clinical Outcomes of Veterans Affairs Residential PTSD Treatment for PTSD and Depressive Symptoms: 1-Year Follow-Up Outcomes and Gender Differences
Gross G, Spiller T, Carretta R, Sippel L, Smith N, Harpaz-Rotem I. Clinical Outcomes of Veterans Affairs Residential PTSD Treatment for PTSD and Depressive Symptoms: 1-Year Follow-Up Outcomes and Gender Differences. Psychological Trauma Theory Research Practice And Policy 2023, 15: 1406-1415. PMID: 37199985, DOI: 10.1037/tra0001494.Peer-Reviewed Original ResearchPosttraumatic stress disorderResidential Rehabilitation Treatment ProgramDepressive symptomsWomen veteransTime pointsTreatment gainsRehabilitation treatment programResidential treatmentDepressive symptom severityGreater symptom reductionFirst national investigationLong-term effectivenessResidential PTSD treatmentClinical outcomesYear postdischargeUp OutcomesSymptom reductionPTSD treatmentSymptom changeSymptom severitySymptomsTreatment programStress disorderPTSD symptomsLinear mixed modelsMilitary Sexual Trauma and its Association with Mental Health Among Sexual Minority and Heterosexual Veterans in the United States
Webermann A, Merians A, Gross G, Portnoy G, Rosen M, Pietrzak R. Military Sexual Trauma and its Association with Mental Health Among Sexual Minority and Heterosexual Veterans in the United States. LGBT Health 2023, 10: s61-s69. PMID: 37754922, DOI: 10.1089/lgbt.2023.0074.Peer-Reviewed Original ResearchConceptsMental health symptomsMilitary sexual traumaHealth symptomsHeterosexual veteransCurrent drug use disordersCurrent mental health symptomsCurrent posttraumatic stress disorderMultivariable logistic regressionDrug use disordersPrevalence of MSTMilitary characteristicsSexual traumaPosttraumatic stress disorderRepresentative web-based surveyHigh prevalenceUse disordersU.S. veteransWeb-based surveySociodemographic characteristicsSymptomsBivariate analysisLogistic regressionStress disorderMental healthPrevalenceThe Functional Significance of a Novel Conceptualization of Intrusion Symptoms of PTSD
Spiller T, Gross G, Duek O, Pietrzak R, Harpaz-Rotem I. The Functional Significance of a Novel Conceptualization of Intrusion Symptoms of PTSD. European Psychiatry 2023, 66: s476-s477. PMCID: PMC10434546, DOI: 10.1192/j.eurpsy.2023.1020.Peer-Reviewed Original ResearchPosttraumatic stress disorderIntrusion symptomsResidential treatment programEmotional functioningFactors of PTSDSymptoms of PTSDSymptom clustersDistinct underlying processesDisclosure of interestSelf-report formCore defining featuresStructural equation modellingPhysical functioningGood model fitStress disorderPTSD ChecklistIntrusion factorCorresponding subscalesPreliminary empirical evidenceInitial supportDSM-5Equation modellingTreatment programSuperior fitBiological underpinningsUnderstanding veteran barriers to specialty outpatient PTSD clinical care
Rozek D, Steigerwald V, Baker S, Gross G, Maieritsch K, Hoff R, Harpaz-Rotem I, Smith N. Understanding veteran barriers to specialty outpatient PTSD clinical care. Journal Of Anxiety Disorders 2023, 95: 102675. PMID: 36854224, DOI: 10.1016/j.janxdis.2023.102675.Peer-Reviewed Original ResearchConceptsSpecialty outpatient clinicsPosttraumatic stress disorderOutpatient clinicPTSD specialty clinicClinical characteristicsMale sexPTSD symptom severitySpecialty clinicWhite raceClinical careClinical concernTreatment engagementSymptom severityStress disorderClinicGreater likelihoodVeteransSignificant minorityTreatmentImpact of demographicsMulti-faceted barriersCareFiscal year 2019DemographicsNational sample
2022
Comparative effectiveness of group v. individual trauma-focused treatment for posttraumatic stress disorder in veterans
Spiller TR, Duek O, Buta E, Gross G, Smith NB, Harpaz-Rotem I. Comparative effectiveness of group v. individual trauma-focused treatment for posttraumatic stress disorder in veterans. Psychological Medicine 2022, 53: 4561-4568. PMID: 35959560, PMCID: PMC10388318, DOI: 10.1017/s0033291722001441.Peer-Reviewed Original ResearchConceptsGroup cognitive processing therapyCognitive processing therapyPosttraumatic stress disorderIndividual cognitive processing therapyPTSD symptom severitySymptom severityStress disorderReal-world effectivenessComparative effectiveness studiesResidential treatmentEffective treatmentComparative effectivenessVeterans AffairsEffectiveness studiesPTSD ChecklistPTSD severityGroup therapySeverityVeteransTreatmentDSM-5Group V.TherapyDisordersSmall reduction
2021
Binge drinking following residential treatment for posttraumatic stress disorder among veterans with and without alcohol use disorder
Meshberg-Cohen S, Gross GM, Kachadourian LK, Harpaz-Rotem I. Binge drinking following residential treatment for posttraumatic stress disorder among veterans with and without alcohol use disorder. Journal Of Psychiatric Research 2021, 143: 202-208. PMID: 34500350, DOI: 10.1016/j.jpsychires.2021.09.024.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderMilitary sexual traumaAlcohol use disorderPTSD symptom improvementResidential treatmentBinge drinkingStress disorderPTSD symptom changeResidential PTSD treatmentPTSD symptom decreaseUse disordersBinge drinking daysAlcohol-related variablesPTSD treatmentTrauma typesSexual traumaProblematic drinkingCombat exposureDrinking outcomesSymptom changeGreater likelihoodSymptom improvementBingeSymptom decreaseAlcohol use
2020
Sex Differences in Associations Between Depression and Posttraumatic Stress Disorder Symptoms and Tobacco Use Among Veterans of Recent Conflicts
Gross GM, Bastian LA, Smith NB, Harpaz-Rotem I, Hoff R. Sex Differences in Associations Between Depression and Posttraumatic Stress Disorder Symptoms and Tobacco Use Among Veterans of Recent Conflicts. Journal Of Women's Health 2020, 29: 677-685. PMID: 31934813, DOI: 10.1089/jwh.2019.8082.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderTobacco usePTSD symptomsFemale veteransSex differencesAssociation of depressionTobacco use cessationBaseline interview dataCross-sectional associationsMental health conditionsLogistic regression modelsPosttraumatic stress disorder (PTSD) symptomsBinary logistic regression modelSex-specific barriersTobacco usersSymptomsStress disorderAlcohol useHealth conditionsDepressionDisorder symptomsVeteran sampleMH conditionsIntervention strategiesEffects of demographics
2019
Meaning in life following deployment sexual trauma: Prediction of posttraumatic stress symptoms, depressive symptoms, and suicidal ideation
Gross GM, Laws H, Park CL, Hoff R, Hoffmire CA. Meaning in life following deployment sexual trauma: Prediction of posttraumatic stress symptoms, depressive symptoms, and suicidal ideation. Psychiatry Research 2019, 278: 78-85. PMID: 31158725, DOI: 10.1016/j.psychres.2019.05.037.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderSuicidal ideationDepressive symptomsPosttraumatic stress symptomsImportant clinical factorsBaseline interview dataCross-sectional associationsDeleterious mental health outcomesSexual traumaStress symptomsMental health outcomesMental health consequencesClinical factorsHayes mediation modelHealth outcomesSymptomsHealth consequencesProtective factorsStress disorderPoints of interventionTraumaVeteran sampleSI severityCombat traumaDecreased sense
2018
Does Deployment-Related Military Sexual Assault Interact With Combat Exposure to Predict Posttraumatic Stress Disorder in Female Veterans?
Gross G, Cunningham K, Moore D, Naylor J, Brancu M, Wagner H, Elbogen E, Calhoun P, Workgroup V, Kimbrel N. Does Deployment-Related Military Sexual Assault Interact With Combat Exposure to Predict Posttraumatic Stress Disorder in Female Veterans? Traumatology An International Journal 2018, 25: 66-71. PMID: 30202245, PMCID: PMC6128291, DOI: 10.1037/trm0000165.Peer-Reviewed Original ResearchLong-term mental healthCombat exposurePTSD symptomsPTSD diagnosisHypothesized interactionIraq/Afghanistan-era veteransSelf-report measuresPosttraumatic stress disorderFemale veteransSexual assault experiencesAfghanistan-era veteransPresent researchLow base ratesEffects of combatStress disorderAssault experiencesPTSDBase ratesCombat experienceMental healthDiagnostic InterviewPrior researchPrevious findingsSignificant predictorsLimited support