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 healthPrevalenceComparative effectiveness of evidence-based psychotherapies for PTSD delivered in VA residential PTSD treatment
Sippel L, Gross G, Spiller T, Duek O, Smith N, Hoff R, Harpaz-Rotem I. Comparative effectiveness of evidence-based psychotherapies for PTSD delivered in VA residential PTSD treatment. Psychological Medicine 2023, 53: 6859-6866. PMID: 36971021, DOI: 10.1017/s0033291723000375.Peer-Reviewed Original ResearchResidential Rehabilitation Treatment ProgramPosttraumatic stress disorderCognitive processing therapyComparative effectivenessProlonged exposureFirst-line treatmentSevere posttraumatic stress disorderRehabilitation treatment programSelf-reported posttraumatic stress disorderDepressive symptom outcomesDepressive symptom severityEvidence-based psychotherapiesElectronic medical recordsResidential PTSD treatmentSymptomatic patientsComorbid conditionsMedical recordsPE groupSymptom outcomesIndividual cognitive processing therapyDepressive symptomsPTSD treatmentSymptom severityTreatment programProgram evaluation dataRacial and ethnic mental health disparities in U.S. Military Veterans: Results from the National Health and Resilience in Veterans Study
Merians A, Gross G, Spoont M, Bellamy C, Harpaz-Rotem I, Pietrzak R. Racial and ethnic mental health disparities in U.S. Military Veterans: Results from the National Health and Resilience in Veterans Study. Journal Of Psychiatric Research 2023, 161: 71-76. PMID: 36905842, DOI: 10.1016/j.jpsychires.2023.03.005.Peer-Reviewed Original ResearchConceptsPsychiatric disordersWhite veteransNational HealthHispanic veteransMilitary veteransBlack veteransVeterans StudyLifetime major depressive disorderLifetime posttraumatic stress disorderHigh-risk subgroupsPopulation-based studyCurrent psychiatric disorderDrug use disordersMajor depressive disorderCommon psychiatric disordersEthnic differencesPopulation-based sampleCertain psychiatric disordersPopulation-based researchLower household incomeCurrent suicidal ideationPosttraumatic stress disorderRace/ethnicityU.S. military veteransMental health disparitiesThe 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 useRacial Disparities in Clinical Outcomes of Veterans Affairs Residential PTSD Treatment Between Black and White Veterans
Gross GM, Smith N, Holliday R, Rozek DC, Hoff R, Harpaz-Rotem I. Racial Disparities in Clinical Outcomes of Veterans Affairs Residential PTSD Treatment Between Black and White Veterans. Psychiatric Services 2021, 73: 126-132. PMID: 34369806, DOI: 10.1176/appi.ps.202000783.Peer-Reviewed Original ResearchConceptsResidential Rehabilitation Treatment ProgramPosttraumatic stress disorderWhite veteransRacial disparitiesClinical outcomesBlack veteransSymptoms of PTSDPoor clinical outcomeRehabilitation treatment programRecurrence 4 monthsPoor treatment outcomesMental health treatmentPublic health issuePTSD symptom reductionResidential PTSD treatmentMental health researchTreatment outcomesPrevalence ratesSymptom reductionHealth treatmentHealth outcomesPTSD treatmentDemographic dataSymptom changeTreatment program
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
Comparing the effectiveness of VA residential PTSD treatment for veterans who do and do not report a history of MST: A national investigation
Holliday R, Smith NB, Holder N, Gross GM, Monteith LL, Maguen S, Hoff RA, Harpaz-Rotem I. Comparing the effectiveness of VA residential PTSD treatment for veterans who do and do not report a history of MST: A national investigation. Journal Of Psychiatric Research 2019, 122: 42-47. PMID: 31923834, DOI: 10.1016/j.jpsychires.2019.12.012.Peer-Reviewed Original ResearchConceptsResidential Rehabilitation Treatment ProgramMilitary sexual traumaPosttraumatic stress disorderPTSD symptomsMST survivorsPTSD treatmentVeterans AffairsProgram completionRehabilitation treatment programSymptom severity scoresEffects of MSTExperience of MSTHistory of MSTPTSD symptom severity scoresPost-treatment gainsRace/ethnicityImpact of MSTSevere PTSD symptomsResidential PTSD treatmentAdjunctive servicesPsychiatric comorbiditySeverity scoreHealth sequelaeIncrease riskWomen veteransMeaning 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
2017
Wall/Object Punching: An Important but Under‐Recognized Form of Nonsuicidal Self‐Injury
Kimbrel N, Thomas S, Hicks T, Hertzberg M, Clancy C, Elbogen E, Meyer E, DeBeer B, Gross G, Silvia P, Morissette S, Gratz K, Calhoun P, Beckham J. Wall/Object Punching: An Important but Under‐Recognized Form of Nonsuicidal Self‐Injury. Suicide And Life-Threatening Behavior 2017, 48: 501-511. PMID: 28925016, PMCID: PMC6366325, DOI: 10.1111/sltb.12371.Peer-Reviewed Original Research