2024
Loneliness Trajectories in U.S. Military Veterans: A 3-Year Longitudinal Study of Risk and Protective Factors
Ong A, Cintron D, Rottenberg J, Panaite V, Fischer I, Na P, Jeste D, Pietrzak R. Loneliness Trajectories in U.S. Military Veterans: A 3-Year Longitudinal Study of Risk and Protective Factors. The Journals Of Gerontology Series B 2024, gbae171. PMID: 39390809, DOI: 10.1093/geronb/gbae171.Peer-Reviewed Original ResearchGrowth mixture modelingU.S. military veteransLoneliness trajectoriesMilitary veteransLongitudinal Study of RiskNational Health and ResilienceEarly life adversitySelf-report ratingsProtective factorsWorse cognitive functionMental health concernsPhysical health outcomesHealth concernAdverse childhood experiencesRisk factorsLongitudinal cohort studyStudy of riskNationally representative samplePotential psychosocial riskPromote social connectednessSignificant public health concernVeterans StudyLife adversityThree-step regression analysisCognitive functionWell-being domains in U.S. military veterans: identifying modifiable factors to promote whole health.
Fischer I, Na P, Feldman D, Krist A, Kudler H, Jeste D, Pietrzak R. Well-being domains in U.S. military veterans: identifying modifiable factors to promote whole health. International Psychogeriatrics 2024, 1-7. PMID: 38770709, DOI: 10.1017/s1041610224000589.Peer-Reviewed Original ResearchU.S. military veteransPromotion of overall healthModifiable factorsWell-beingU.S. Department of Veterans AffairsMilitary veteransDepartment of Veterans AffairsAnalyzed cross-sectional dataModel of healthcareDisease-centred modelNationally representative samplePromote well-beingWell-being domainsWhole healthCross-sectional dataModifiable healthVeterans AffairsSocial supportPsychosocial correlatesOverall healthSocioeconomic well-beingU.S. veteransDisease preventionSocioeconomic domainsRepresentative sampleFunctional significance of posttraumatic growth in U.S. military veterans
Gower T, Fischer I, Tsai J, Kang H, Na P, Tedeschi R, Pietrzak R. Functional significance of posttraumatic growth in U.S. military veterans. Journal Of Affective Disorders 2024, 356: 267-273. PMID: 38614442, DOI: 10.1016/j.jad.2024.04.046.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderPosttraumatic stress disorder symptomsPosttraumatic growthPsychosocial functioningTraumatic eventsTrauma-exposed U.S. veteransNational Health and ResilienceMale veteran samplePost-trauma functioningPattern of findingsRetrospective self-reportsU.S. military veteransVeteran sampleStress disorderVeterans StudyExamined relationsCross-sectional designMilitary veteransNationally representative sampleU.S. veteransAssociated with functionsPhysical functionClinical interventionsPsychosocial characteristicsVeteransProblematic Alcohol Use Trajectories in U.S. Military Veterans during a Public Health Crisis: Results from a 3-year, Nationally Representative, Longitudinal Study
Na P, Fischer I, Petrakis I, Pietrzak R. Problematic Alcohol Use Trajectories in U.S. Military Veterans during a Public Health Crisis: Results from a 3-year, Nationally Representative, Longitudinal Study. Psychiatric Quarterly 2024, 95: 157-171. PMID: 38319532, PMCID: PMC11521206, DOI: 10.1007/s11126-024-10067-w.Peer-Reviewed Original ResearchConceptsDrug use disordersProblematic alcohol useAlcohol use trajectoriesLow social supportAdverse childhood experiencesAlcohol useGreater household incomeSocial supportUS veteransLongitudinal studyNational Health and ResilienceLatent growth mixture modelingU.S. military veteransHousehold incomeGrowth mixture modelingNon-household membersCOVID-19 pandemicVeterans StudyUse disorderMilitary veteransChildhood experiencesPublic health crisisPsychosocial characteristicsPrevention effortsVeterans
2023
Functional decline during the COVID‐19 pandemic among U.S. military veterans: Results from the National Health and Resilience in Veterans Study
Morse J, Fischer I, Na P, Afari N, Pietrzak R. Functional decline during the COVID‐19 pandemic among U.S. military veterans: Results from the National Health and Resilience in Veterans Study. International Journal Of Geriatric Psychiatry 2023, 38: e6040. PMID: 38072628, DOI: 10.1002/gps.6040.Peer-Reviewed Original ResearchConceptsAdverse childhood experiencesFunctional declineU.S. military veteransGreater adverse childhood experiencesNational HealthPhysical functioningVeterans StudyIdentification of veteransSubstantial health problemPhysical functional declineMilitary veteransMental functioningU.S. adult populationStress symptomsStrongest correlatePrevalence of veteransProtective psychosocial characteristicsMultivariable analysisPosttraumatic stress symptomsHealth problemsU.S. veteransAdult populationImprovement 1Coronavirus diseaseOlder agePosttraumatic Growth in U.S. Military Veterans: Results from the National Health and Resilience in Veterans Study
Kang H, Fischer I, Dickinson S, Na P, Tsai J, Tedeschi R, Pietrzak R. Posttraumatic Growth in U.S. Military Veterans: Results from the National Health and Resilience in Veterans Study. Psychiatric Quarterly 2023, 95: 17-32. PMID: 37938492, DOI: 10.1007/s11126-023-10061-8.Peer-Reviewed Original ResearchPosttraumatic growthU.S. military veteransPTSD symptomsTraumatic eventsPosttraumatic stress disorder (PTSD) symptomsPositive psychological changesVeterans StudyMilitary veteransGreater posttraumatic growthTrauma-exposed veteransIntrinsic religiosityPTSD symptom severitySevere PTSD symptomsHigh-risk sampleIntrusive symptomsDisorder symptomsPsychological changesPTG levelsTraumatic experiencesPTSD ChecklistVeteran samplePsychosocial characteristicsSymptom clustersDSM-5Symptom severityChanges in mental health among U.S. military veterans during the COVID-19 pandemic: A network analysis
Spiller T, Na P, Merians A, Duek O, Ben-Zion Z, Tsai J, von Känel R, Harpaz-Rotem I, Pietrzak R. Changes in mental health among U.S. military veterans during the COVID-19 pandemic: A network analysis. Journal Of Psychiatric Research 2023, 165: 352-359. PMID: 37595331, DOI: 10.1016/j.jpsychires.2023.08.003.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderSymptoms of PTSDTraumatic eventsPosttraumatic growthU.S. military veteransPTSD symptomsSuicidal ideationMental healthMilitary veteransIncrease of symptomsPopulation-based sampleCOVID-19 pandemicFirst yearStress disorderMost veteransSymptomsFirst monthPsychopathological symptomsGeneral resilienceGroup levelAnxietyVeteransIndividual reactionsDepressionSubtle increasePandemic-related posttraumatic psychological growth in U.S. military veterans: A 3-year, nationally representative, longitudinal study
Kang H, Na P, Fischer I, Tsai J, Tedeschi R, Pietrzak R. Pandemic-related posttraumatic psychological growth in U.S. military veterans: A 3-year, nationally representative, longitudinal study. Psychiatry Research 2023, 326: 115370. PMID: 37499281, DOI: 10.1016/j.psychres.2023.115370.Peer-Reviewed Original ResearchConceptsPosttraumatic growthU.S. military veteransPost-pandemic onsetDomains of PTGPositive psychological changesMilitary veteransPosttraumatic stress symptomsLongitudinal studyEarly life traumaPsychological growthPsychological changesPsychosocial interventionsStress symptomsLife traumaCOVID-19 vaccineVeterans StudyGreater worryMental healthStrongest correlateFull sampleNational HealthVeteransSignificant decreaseOnsetPrevalenceCOVID-19-related media consumption and posttraumatic stress symptoms in U.S. military veterans: A nationally representative, longitudinal study
Whealin J, Fischer I, Na P, Pietrzak R. COVID-19-related media consumption and posttraumatic stress symptoms in U.S. military veterans: A nationally representative, longitudinal study. Psychiatry Research 2023, 326: 115354. PMID: 37480676, DOI: 10.1016/j.psychres.2023.115354.Peer-Reviewed Original ResearchFirearm Ownership Among a Nationally Representative Sample of U.S. Veterans
Fischer I, Aunon F, Nichter B, Hill M, Panza K, Kline A, Na P, Tsai J, Harpaz-Rotem I, Pietrzak R. Firearm Ownership Among a Nationally Representative Sample of U.S. Veterans. American Journal Of Preventive Medicine 2023, 65: 1129-1133. PMID: 37354925, DOI: 10.1016/j.amepre.2023.06.013.Peer-Reviewed Original ResearchConceptsU.S. veteransMultivariable logistic regression analysisLogistic regression analysisAlcohol use disorderSuicide prevention effortsU.S. military veteransNationally Representative SampleMale sexTrauma burdenNational HealthRepresentative sampleFirearm ownershipChi-square analysisUse disordersFirearm safetyIndependent sample t-testLifetime historyVeterans StudyPrevention effortsPsychiatric variablesMilitary veteransVeteransRegression analysisT-testSignificant main effectTrajectories of alcohol consumption in U.S. military veterans: Results from a 10-year population-based longitudinal study
Na P, Montalvo-Ortiz J, Petrakis I, Krystal J, Polimanti R, Gelernter J, Pietrzak R. Trajectories of alcohol consumption in U.S. military veterans: Results from a 10-year population-based longitudinal study. Drug And Alcohol Dependence 2023, 246: 109833. PMID: 36963160, PMCID: PMC10811960, DOI: 10.1016/j.drugalcdep.2023.109833.Peer-Reviewed Original ResearchConceptsAlcohol consumption groupCurrent mental health treatmentDysphoric arousal symptomsMental health treatmentUS veteransAlcohol consumptionHealth treatmentConsumption groupArousal symptomsYounger agePopulation-based longitudinal studyPublic health problemLongitudinal studyExcessive alcohol consumptionAlcohol use disorderPosttraumatic stress disorderU.S. military veteransMedical comorbiditiesChronic courseNational HealthClose monitoringUse disordersHealth problemsVeterans StudyStress disorderPrevalence, Correlates, and Psychiatric Burden of Prolonged Grief Disorder in U.S. Military Veterans: Results From a Nationally Representative Study
Na P, Fischer I, Shear K, Pietrzak R. Prevalence, Correlates, and Psychiatric Burden of Prolonged Grief Disorder in U.S. Military Veterans: Results From a Nationally Representative Study. American Journal Of Geriatric Psychiatry 2023, 31: 543-548. PMID: 36878740, PMCID: PMC11143540, DOI: 10.1016/j.jagp.2023.02.007.Peer-Reviewed Original ResearchConceptsIndependent risk factorMajor depressive disorderUnited States veteransCoronavirus disease 2019Substance use disordersPost-traumatic stress disorderGrief disorderAdverse childhood experiencesNon-natural causesU.S. military veteransPoint prevalenceNationally Representative StudyFemale sexNational HealthRepresentative studyRisk factorsDepressive disorderPsychiatric burdenDisease 2019States veteransAdditional adjustmentPsychiatric disordersProlonged Grief DisorderUse disordersU.S. veterans
2022
Identifying factors associated with elevated suicidal intent among U.S. military veterans
Nichter B, Na PJ, Stanley IH, Marx BP, Herzog S, Moynahan V, Hill ML, Norman SB, Pietrzak RH. Identifying factors associated with elevated suicidal intent among U.S. military veterans. Journal Of Psychiatric Research 2022, 155: 68-74. PMID: 35988305, DOI: 10.1016/j.jpsychires.2022.08.001.Peer-Reviewed Original ResearchConceptsSuicidal intentU.S. military veteransHigh riskU.S. veteransPast-year suicidal ideationMilitary veteransPopulation-based sampleCurrent suicidal intentPrior suicide attemptsRisk factorsNational HealthCurrent insomniaCurrent depressionSuicidal ideationVeterans StudyVulnerability factorsSuicide attemptsSuicidal behaviorChildhood sexual abuseCo-occurring factorsSuicide mortalityVeterans' reportsSpecific vulnerability factorVeteransRepresentative sampleProvision of social support and mental health in U.S. military veterans
Na P, Tsai J, Southwick S, Pietrzak R. Provision of social support and mental health in U.S. military veterans. Npj Mental Health Research 2022, 1: 4. PMID: 38609471, PMCID: PMC10938859, DOI: 10.1038/s44184-022-00004-9.Peer-Reviewed Original ResearchMental healthAdverse mental health outcomesSocial supportMental health outcomesMajority of veteransU.S. military veteransUS veteransLower oddsPsychiatric disordersRepresentative cohortHealth outcomesSuicidal ideationGood healthMilitary veteransStandard deviation increaseVeteransProvision of supportHealthOddsOutcomesDeviation increaseCohortLoneliness in U.S. military veterans during the COVID-19 pandemic: A nationally representative, prospective cohort study
Na PJ, Straus E, Tsai J, Norman SB, Southwick SM, Pietrzak RH. Loneliness in U.S. military veterans during the COVID-19 pandemic: A nationally representative, prospective cohort study. Journal Of Psychiatric Research 2022, 151: 546-553. PMID: 35636030, PMCID: PMC9126310, DOI: 10.1016/j.jpsychires.2022.05.042.Peer-Reviewed Original ResearchConceptsPrevalence of lonelinessPersistent lonelinessPandemic-related social restrictionsMultivariable logistic regression modelProtective factorsCOVID-19 pandemicPre-existing psychiatric conditionsProspective cohort studyMilitary veteransPre-pandemic measuresLogistic regression modelsProtective psychosocial factorsU.S. military veteransProspective cohortCohort studyUS veteransNational HealthHigh riskPsychiatric disordersPsychosocial factorsCOVID-related stressorsPsychiatric conditionsVeterans StudyLongitudinal changesVulnerable populationsMental Health Burden in Enlisted and Commissioned U.S. Military Veterans: Importance of Indirect Trauma Exposure in Commissioned Veterans
Merians AN, Na PJ, Tsai J, Harpaz-Rotem I, Pietrzak RH. Mental Health Burden in Enlisted and Commissioned U.S. Military Veterans: Importance of Indirect Trauma Exposure in Commissioned Veterans. Psychiatry 2022, 85: 418-432. PMID: 35532217, DOI: 10.1080/00332747.2022.2068301.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderMajor depressive disorderU.S. military veteransSuicidal ideationMilitary veteransTrauma exposureMost mental health outcomesMental health burdenPast-year suicidal ideationDrug use disordersU.S. veteran populationMental health historyHigh exposureMental health outcomesMultivariable analysisDepressive disorderNational HealthHealth burdenPost-stratification weightsUse disordersVeteran populationHealth historyHealth outcomesIndirect trauma exposureVeterans StudyP79. Are Positive Psychosocial Traits Linked to Epigenetic Aging? Results From a National Sample of U.S. Military Veterans
Nagamatsu S, Pietrzak R, Na P, Krystal J, Gelernter J, Montalvo-Ortiz J. P79. Are Positive Psychosocial Traits Linked to Epigenetic Aging? Results From a National Sample of U.S. Military Veterans. Biological Psychiatry 2022, 91: s119. DOI: 10.1016/j.biopsych.2022.02.313.Peer-Reviewed Original ResearchU.S. military veteransPsychosocial traitsMilitary veteransNational sampleEpigenetic agingVeteransTraitsCo-occurring alcohol use disorder and obesity in U.S. military veterans: Prevalence, risk factors, and clinical features
Carr MM, Serowik KL, Na PJ, Potenza MN, Martino S, Masheb RM, Pietrzak RH. Co-occurring alcohol use disorder and obesity in U.S. military veterans: Prevalence, risk factors, and clinical features. Journal Of Psychiatric Research 2022, 150: 64-70. PMID: 35358833, DOI: 10.1016/j.jpsychires.2022.03.039.Peer-Reviewed Original ResearchConceptsAlcohol use disorderCo-occurring alcohol use disorderCo-occurring obesityU.S. military veteransRisk factorsUse disordersProbable alcohol use disorderAlcohol Use Disorders Identification TestMore adverse childhood experiencesBody mass indexMilitary veteransSelf-reported heightDisorders Identification TestAdverse childhood experiencesClinical featuresClinical presentationMass indexNeeds of veteransClinical correlatesClinical conditionsMultinomial logistic regressionObesityChildhood adversityLogistic regressionEffective interventionsCannabis use among U.S. military veterans with subthreshold or threshold posttraumatic stress disorder: Psychiatric comorbidities, functioning, and strategies for coping with posttraumatic stress symptoms
Hill ML, Loflin M, Nichter B, Na PJ, Herzog S, Norman SB, Pietrzak RH. Cannabis use among U.S. military veterans with subthreshold or threshold posttraumatic stress disorder: Psychiatric comorbidities, functioning, and strategies for coping with posttraumatic stress symptoms. Journal Of Traumatic Stress 2022, 35: 1154-1166. PMID: 35275431, DOI: 10.1002/jts.22823.Peer-Reviewed Original ResearchConceptsU.S. military veteransFull PTSDCannabis usePTSD symptomsPosttraumatic stress disorder (PTSD) symptomsThreshold Posttraumatic Stress DisorderMilitary veteransPosttraumatic stress symptomsPosttraumatic stress disorderPsychiatric symptomsFrequent cannabis useMental health treatmentCurrent psychiatric symptomsCo-occurring depressionCognitive functioningBehavioral disengagementDisorder symptomsStress disorderStress symptomsFrequent cannabisTreatment engagementPTSDVeterans StudyHealth treatmentSubstance use
2021
Epidemiology of DSM-5 alcohol use disorder in U.S. military veterans: Results from the National Health and Resilience in Veterans Study
Panza KE, Kline AC, Na PJ, Potenza MN, Norman SB, Pietrzak RH. Epidemiology of DSM-5 alcohol use disorder in U.S. military veterans: Results from the National Health and Resilience in Veterans Study. Drug And Alcohol Dependence 2021, 231: 109240. PMID: 34974271, DOI: 10.1016/j.drugalcdep.2021.109240.Peer-Reviewed Original ResearchConceptsDSM-5 alcohol use disorderAlcohol use disorderPast-year alcohol use disorderLifetime alcohol use disorderAdverse childhood experiencesNational HealthUse disordersU.S. veteransVeterans StudySuicidal behaviorPrevalent public health concernPopulation-based burdenPrevalence of lifetimeSevere alcohol use disorderPublic health concernChildhood experiencesU.S. military veteransLifetime prevalenceLifetime PTSDPsychiatric characteristicsPsychiatric disordersDiagnostic criteriaElevated oddsVeteran populationPreventive efforts