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
Changes 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 decreaseOnsetPrevalenceCharacterization of Mental Health in US Veterans Before, During, and 2 Years After the Onset of the COVID-19 Pandemic
Fischer I, Na P, Harpaz-Rotem I, Krystal J, Pietrzak R. Characterization of Mental Health in US Veterans Before, During, and 2 Years After the Onset of the COVID-19 Pandemic. JAMA Network Open 2023, 6: e230463. PMID: 36821116, PMCID: PMC9951035, DOI: 10.1001/jamanetworkopen.2023.0463.Peer-Reviewed Original Research
2022
Provision 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 increaseCohort
2021
Psychiatric and Substance Use Disorders and Related Service Use in the Diverse Black Sub-Populations in the United States
Jegede O, Na PJ, Rhee TG, Stefanovics EA, Rosenheck RA. Psychiatric and Substance Use Disorders and Related Service Use in the Diverse Black Sub-Populations in the United States. Journal Of Racial And Ethnic Health Disparities 2021, 9: 2237-2247. PMID: 34590245, DOI: 10.1007/s40615-021-01163-9.Peer-Reviewed Original ResearchConceptsRelated service useSubstance use diagnosesSubstance use disordersService useUse diagnosesUse disordersRelated Conditions Wave IIILogistic regression analysisNational Epidemiologic SurveyDiverse black populationsAfrican AmericansMultinomial logistic regression analysisBlack/African AmericanBlack populationClinical characteristicsMethodsThe dataWave IIIEpidemiologic SurveyMeasures of qualityMental healthPhysical healthReference groupSubstance useGroup differencesBlack individualsFactors associated with post-traumatic growth in response to the COVID-19 pandemic: Results from a national sample of U.S. military veterans
Na PJ, Tsai J, Southwick SM, Pietrzak RH. Factors associated with post-traumatic growth in response to the COVID-19 pandemic: Results from a national sample of U.S. military veterans. Social Science & Medicine 2021, 289: 114409. PMID: 34537394, PMCID: PMC8445520, DOI: 10.1016/j.socscimed.2021.114409.Peer-Reviewed Original ResearchConceptsPost-traumatic growthPosttraumatic stress disorderPTSD symptomsU.S. military veteransPositive psychological changesNegative psychological outcomesMilitary veteransU.S. veteransNational samplePrior traumatic eventsAvoidance symptomsTrauma survivorsPsychological outcomesTraumatic eventsPsychological changesPsychosocial interventionsStress disorderPsychological distressPsychological impactCOVID-19 pandemicMajority of researchVeterans StudyMental healthLongitudinal studyFunctional correlatesNew‐onset and exacerbated insomnia symptoms during the COVID‐19 pandemic in US military veterans: A nationally representative, prospective cohort study
McCarthy E, DeViva JC, Na PJ, Pietrzak RH. New‐onset and exacerbated insomnia symptoms during the COVID‐19 pandemic in US military veterans: A nationally representative, prospective cohort study. Journal Of Sleep Research 2021, 31: e13450. PMID: 34327743, PMCID: PMC8420100, DOI: 10.1111/jsr.13450.Peer-Reviewed Original ResearchConceptsClinical insomnia symptomsInsomnia symptomsUS military veteransPandemic-related stressMilitary veteransProspective cohort studyHigh-risk populationInsomnia Severity IndexCOVID-19 pandemicPosttraumatic stress disorderPandemic-related factorsChest painCohort studyUS veteransNational HealthRepresentative sampleSubthreshold insomniaVeterans StudySymptomsIsolation restrictionsStress disorderMental healthTreatment effortsSeverity IndexPotential targetMental health impact of the COVID-19 pandemic in U.S. military veterans: a population-based, prospective cohort study
Hill ML, Nichter B, Na PJ, Norman SB, Morland LA, Krystal JH, Pietrzak RH. Mental health impact of the COVID-19 pandemic in U.S. military veterans: a population-based, prospective cohort study. Psychological Medicine 2021, 53: 945-956. PMID: 34120667, PMCID: PMC8245339, DOI: 10.1017/s0033291721002361.Peer-Reviewed Original ResearchConceptsPositive screenPsychiatric distressU.S. military veteran populationMiddle-aged veteransProspective cohort studyProspective cohort surveyMajor depressive disorderMilitary veteran populationMental health problemsMental health impactU.S. military veteransCohort studyDepressive disorderNational HealthPsychiatric symptomsVeteran populationCohort surveyHealth problemsU.S. veteransVeterans StudyClinical implicationsCoronavirus diseaseProtective factorsMeaningful preMental health
2016
Predictors of suicidal ideation in Korean American older adults: analysis of the Memory and Aging Study of Koreans (MASK)
Na PJ, Kim KB, Lee‐Tauler S, Han H, Kim MT, Lee HB. Predictors of suicidal ideation in Korean American older adults: analysis of the Memory and Aging Study of Koreans (MASK). International Journal Of Geriatric Psychiatry 2016, 32: 1272-1279. PMID: 27779333, PMCID: PMC5993045, DOI: 10.1002/gps.4608.Peer-Reviewed Original ResearchConceptsKorean American older adultsSelf-rated mental healthMinor depressive syndromeDepressive syndromeAmerican older adultsSuicidal ideationOlder adultsMental healthHealth statusPoor self-rated mental healthMajor depressive syndromePatient Health QuestionnairePhysical health statusMental health statusSuicide prevention interventionsCommunity-representative sampleHealth QuestionnaireEpidemiologic studiesPrevention interventionsSelf-rated mental health statusBaltimore-Washington areaSyndromeSuicide riskEarly detectionAging Study