2023
Longitudinal Trends in Suicidal Thoughts and Behaviors Among US Military Veterans During the COVID-19 Pandemic
Fischer I, Nichter B, Na P, Norman S, Krystal J, Pietrzak R. Longitudinal Trends in Suicidal Thoughts and Behaviors Among US Military Veterans During the COVID-19 Pandemic. JAMA Psychiatry 2023, 80: 577-584. PMID: 37017978, PMCID: PMC10077136, DOI: 10.1001/jamapsychiatry.2023.0393.Peer-Reviewed Original ResearchConceptsNew-onset suicidal ideationUS military veteransLifetime substance use disorderPast-year suicidal ideationSubstance use disordersSuicidal ideationSuicide planningMilitary veteransUse disordersPsychiatric distressCOVID-19 pandemicSuicidal thoughtsPopulation-based longitudinal studyEvidence-based preventionLongitudinal studyLongitudinal trendsCohort studyNational HealthUS veteransMAIN OUTCOMEVeterans StudySuicide attemptsSuicide riskVulnerable populationsVeterans
2021
Prevalence, risk and protective factors associated with suicidal ideation during the COVID-19 pandemic in U.S. military veterans with pre-existing psychiatric conditions
Na PJ, Tsai J, Hill ML, Nichter B, Norman SB, Southwick SM, Pietrzak RH. Prevalence, risk and protective factors associated with suicidal ideation during the COVID-19 pandemic in U.S. military veterans with pre-existing psychiatric conditions. Journal Of Psychiatric Research 2021, 137: 351-359. PMID: 33756377, PMCID: PMC8545743, DOI: 10.1016/j.jpsychires.2021.03.021.Peer-Reviewed Original ResearchConceptsPre-existing psychiatric conditionsPsychiatric symptom severitySuicidal ideationPsychiatric conditionsPsychiatric symptomsSymptom severityCOVID-19Protective factorsCoronavirus disease 2019 (COVID-19) pandemicPast-year suicidal ideationCOVID-19 infectionDisease 2019 pandemicLifetime suicide attemptsU.S. military veteransMultivariable analysisNational HealthOlder veteransGeneral populationRepresentative cohortU.S. veteransVeterans StudySuicide attemptsOlder ageSuicide riskPsychosocial difficulties
2018
The PHQ-9 Item 9 based screening for suicide risk: a validation study of the Patient Health Questionnaire (PHQ)−9 Item 9 with the Columbia Suicide Severity Rating Scale (C-SSRS)
Na PJ, Yaramala SR, Kim JA, Kim H, Goes FS, Zandi PP, Voort J, Sutor B, Croarkin P, Bobo WV. The PHQ-9 Item 9 based screening for suicide risk: a validation study of the Patient Health Questionnaire (PHQ)−9 Item 9 with the Columbia Suicide Severity Rating Scale (C-SSRS). Journal Of Affective Disorders 2018, 232: 34-40. PMID: 29477096, DOI: 10.1016/j.jad.2018.02.045.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedCohort StudiesCross-Sectional StudiesDepressionFemaleHumansMaleMiddle AgedNeuropsychological TestsPregnancyReference StandardsRegistriesReproducibility of ResultsRisk AssessmentSensitivity and SpecificitySocioeconomic FactorsSuicidal IdeationSuicideSurveys and QuestionnairesYoung AdultConceptsPatient Health QuestionnaireColumbia-Suicide Severity Rating ScaleSeverity Rating ScaleSuicide riskItem 9Health QuestionnaireRating ScaleGold standardOverall poor resultsSuicide ideationClinical characteristicsOverall cohortCare registriesPHQ-9Depressed patientsClinical subgroupsSuicide itemPatientsPassive thoughtsSurrogate measureRiskPoor resultsFurther investigationIdeationAssessment tool
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