Peter J. Na

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)

Peter J. Na, Satyanarayana R. Yaramala, Jihoon Kim et al. · Journal of Affective Disorders · 2018 · 222 citations

Psychological Co-morbidities, Psychiatry, Suicide +11

Mental health impact of the COVID-19 pandemic in U.S. military veterans: a population-based, prospective cohort study

Melanie L. Hill, Brandon Nichter, Peter J. Na et al. · Psychological Medicine · 2021 · 70 citations · Full text

Prevalence and Trends in Suicidal Behavior Among US Military Veterans During the COVID-19 Pandemic

Brandon Nichter, Melanie L. Hill, Peter J. Na et al. · JAMA Psychiatry · 2021 · 61 citations · Full text

The relative influence of individual risk factors for attempted suicide in patients with bipolar I versus bipolar II disorder

William V. Bobo, Peter J. Na, Jennifer R. Geske et al. · Journal of Affective Disorders · 2017 · 48 citations

Psychiatry, Mood Symptom, Medicine +12

Prevalence, risk and protective factors associated with suicidal ideation during the COVID-19 pandemic in U.S. military veterans with pre-existing psychiatric conditions

Peter J. Na, Jack Tsai, Melanie L. Hill et al. · Journal of Psychiatric Research · 2021 · 46 citations · Full text

Psychological Co-morbidities, Psychiatry, Pre-existing Psychiatric Conditions +8