ArticleBMC psychiatry2020
Normative data and psychometric properties of the Patient Health Questionnaire-9 in a nationally representative Korean population.
Article in BMC psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.
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Who cites it
42 citing papers in PubMed.
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- The Impact of Depression on Bedtime Procrastination in High School Students in Pandemic era: The Mediating Roles of Conscientiousness and Emotional Stability.International journal of behavioral medicine · 2026Article
- Internal structure and factorial invariance of the Patient Health Questionnaire -9 (PHQ-9) in a large Argentinean sample.BMC psychiatry · 2026Article
- Association between cardiovascular health measured by Life's Essential 8 and depressive symptoms.Epidemiology and health · 2026Article
- Social engagement and depressive symptoms in Korean older adults: The potential moderating role of employment status.PloS one · 2026Article
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- Factors Influencing Frequency of Depressive Experiences Among Married Working Women in South Korea.Healthcare (Basel, Switzerland) · 2025Article
- Psychological health and wellness and the impact of 6 weeks and 3 months supportive text messaging program (Wellness4MDs) among physicians and medical learners in Canada: a longitudinal study.Frontiers in public health · 2025Article
- Prevalence and correlates of depression, anxiety, and burnout among physicians and postgraduate medical trainees: a scoping review of recent literature.Frontiers in public health · 2025Article
- Screening mental health risks for adolescents in South Korea.Frontiers in psychology · 2025Article
- Health risks associated with urinary incontinence among older Korean Americans living in subsidized senior housing.Ethnicity & health · 2025Article
- Psychometric validation of the Patient Health Questionnaire-9 in Chinese adolescent and adult psychiatric inpatient populations.Frontiers in psychiatry · 2025Article
- Dynamic changes in depressive symptoms at the onset of military conflict in a neighboring country: a cross-sectional study.Frontiers in psychiatry · 2025Article
- Relationship between qualitative and quantitative loneliness and suicidal ideation by occupational classification in the working-age population: a nationally-representative survey.BMC public health · 2024Article
- Psychological Health and Wellness and the Impact of a Supportive Text Messaging Program (Wellness4MDs) Among Physicians and Medical Learners in Canada: Protocol for a Longitudinal Study.JMIR research protocols · 2024Article
- Devastating Wildfires and Mental Health: Major Depressive Disorder Prevalence and Associated Factors among Residents in Alberta and Nova Scotia, Canada.Behavioral sciences (Basel, Switzerland) · 2024Article
- Psychiatric disorders in patients with benign and malignant sinonasal tumors: a prospective cross-sectional study.Frontiers in psychology · 2024Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe Patient Health Questionnaire-9 (PHQ-9) has been standardized in several populations and is widely used in clinical practice and health care. However, it has not been appropriately standardized in the Korean general population, and no normative data have been presented. The aim of this study was to provide the normative data and psychometric properties of the PHQ-9 in the nationally representative population of Korea.
methodsWe used the nationwide cross-sectional survey data of Korea from 2014 to 2016. The data of 10,759 individuals aged over 19 years were analyzed in this study. As the distribution of the PHQ-9 scores was not normative, the percentile ranks for raw scores were provided. The survey questionnaires included the PHQ-9, The EuroQol-5 Dimension (EQ-5D), and demographic characteristics. We analyzed the construct validity and internal consistency of the PHQ-9.
resultsThe normative data of the PHQ-9 were generated according to the sex and different age categories. The correlation coefficient between the sum of the PHQ-9 scores and the EQ-5D index was 0.44, which was moderate. The most appropriate model was the two-factor model with five 'affective-somatic' labeled items and four 'cognitive' labeled items. Cronbach's α for the PHQ-9 was 0.79.
conclusionsOur result supports reliability and validity with two-factor structure of PHQ-9 for measuring depression in the Korean nationally representative population. The Korean normative data on the PHQ-9 according to percentile rank can assist in interpreting and comparing scores with other populations.
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