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Emergency Department Visits for Panic Attacks and Ambient Air Pollution: A Time-Stratified Case-Crossover Analysis

Moon YK, Lee W, Oh S, Kim H, Myung W, Lee H, Kim DK

Objectives This study investigates the association between short-term exposure to air pollutants and panic attacks requiring emergency department (ED) visits. Methods We identified 1926 patients who visited EDs in Seoul with...
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Two-sample Mendelian randomization study for schizophrenia and breast cancer

Kim S, Kim K, Myung W, Lee H, Kim H, Kim DK, Won HH

Purpose: The purpose of this study was to investigate whether the risk of schizophrenia is causally associated with the risk of breast cancer. Methods: Bidirectional two-sample Mendelian randomization (TSMR) was performed...
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Risks of Completed Suicide of Community Individuals with ICD-10 Disorders Across Age Groups: A Nationwide Population-Based Nested Case-Control Study in South Korea

Na EJ, Lee H, Myung W, Fava M, Mischoulon D, Paik JW, Hong JP, Choi KW, Kim H, Jeon HJ

OBJECTIVE: Suicide is the leading cause of death in 10–39-year-olds in South Korea, and the second highest rate among the OECD countries. However, few studies have investigated the particularity of...
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Clinical Correlates of Alcohol Use Disorder in Depressed Patients with Unipolar and Bipolar Disorder

Hong M, Ha TH, Lee S, Oh S, Myung W

OBJECTIVE: Alcohol use disorder (AUD) is one of the most frequent comorbid conditions in mood disorders. We aimed to examine the relationships between clinical phenotypes of acutely depressed subjects and...
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Risk Factors of Behavioral and Psychological Symptoms in Patients with Alzheimer Disease: The Clinical Research of Dementia of South Korea Study

Park S, Kim DK, Myung W, Yoo JH, Shin SJ, Na DL, Kim SY, Lee JH, Kim SY, Han SH, Choi SH, Shin J

BACKGROUND: Few studies have evaluated risk factors for behavioral and psychological symptoms of dementia at the initial assessment for Alzheimer disease in large patient samples. In this study, the factors...
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Advanced Daily Prediction Model for National Suicide Numbers with Social Media Data

Lee KS, Lee H, Myung W, Song GY, Lee K, Kim H, Carroll BJ, Kim DK

OBJECTIVE: Suicide is a significant public health concern worldwide. Social media data have a potential role in identifying high suicide risk individuals and also in predicting suicide rate at the...
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Extrapyramidal Signs and Risk of Progression from Mild Cognitive Impairment to Dementia: A Clinical Research Center for Dementia of South Korea Study

Myung W, Park JH, Woo SY, Kim S, Kim SH, Chung JW, Kang HS, Lim SW, Choi J, Na DL, Kim SY, Lee JH, Han SH, Choi SH, Kim SY, Carroll BJ, Kim DK

OBJECTIVE: Extrapyramidal signs (EPS) are common in patients with mild cognitive impairment (MCI). However, few studies have assessed the effect of EPS on the clinical course of MCI. We aimed...
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Serum Cytokine Levels in Major Depressive Disorder and Its Role in Antidepressant Response

Myung W, Lim SW, Woo HI, Park JH, Shim S, Lee SY, Kim DK

OBJECTIVE: Cytokines have been reported to have key roles in major depressive disorder (MDD). However, much less is known about cytokines in MDD and antidepressant treatment due to the diversity...
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Gender-Specific Influence of Education in Cognitive Subdomains in Mild Cognitive Impairment : A Clinical Research Center for Dementia of South Korea Study

Lee C, Myung W, Lee KS, Lee JR, Kang HS, Lim SW, Na DL, Kim SY, Lee JH, Han SH, Choi SH, Kim SY, Kim DK

OBJECTIVE: This study aimed to find the sex differences of the way how educational attainment influence on cognitive function in the mild cognitive impairment patients. METHODS: A total of 1,704 patients...
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Celebrity Suicides and Their Differential Influence on Suicides in the General Population: A National Population-Based Study in Korea

Myung W, Won HH, Fava M, Mischoulon D, Yeung A, Lee D, Kim DK, Jeon HJ

OBJECTIVE: Although evidence suggests that there is an increase in suicide rates in the general population following celebrity suicide, the rates are heterogeneous across celebrities and countries. It is unclear...
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Extrapyramidal Signs and Impairment of Cognitive Subdomains in Mild Cognitive Impairment : A Clinical Research Center for Dementia of South Korea (CREDOS) Study

Park JH, Myung W, Choi J, Kim S, Kang HS, Na DL, Kim SY, Lee JH, Han SH, Choi SH, Kim S, Kim DK

OBJECTIVES: This study investigated the association between extrapyramidal signs (EPS) and five cognitive sub-domains in a large number of patients with mild cognitive impairment (MCI). METHODS: Our analyses considered 1,943 patients...
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Factors Associated with Caregiver Burden in Patients with Alzheimer's Disease

Kang HS, Myung W, Na DL, Kim SY, Lee JH, Han SH, Choi SH, Kim S, Kim S, Kim DK

OBJECTIVE: Caregivers for patients with Alzheimer's disease (AD) suffer from psychological and financial burdens. However, the results of the relationship between burden and cognitive function, performance of activities of daily...
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Association between Cognitive Subdomains and Insight in Alzheimer Disease: A Clinical Research Center for Dementia of South Korea Study

Kim Y, Kim SH, Myung W, Choi J, Yoon H, Kang HS, Na DL, Kim SY, Lee JH, Han SH, Choi SH, Kim SY, Kim DK

OBJECTIVE: The aim of this study was to investigate the association between cognitive subdomains and insight into one's cognitive impairment in patients with Alzheimer disease (AD). METHODS: We recruited 1,722 patients...
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Alcohol Consumption as Risk Factor for Progression from Mild Cognitive Impairment to Dementia : A Clinical Research Center for Dementia of South Korea Study

Kim J, Kim S, Myung W, Kang HS, Na DL, Kim SY, Lee JH, Han SH, Choi SH, Kim SY, Kim DK

OBJECTIVE: Patients with mild cognitive impairment (MCI) are at high risk for dementia. Excessive alcohol consumption is known to adversely affect cognitive function. This study aimed to investigate the relationship...
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Association between Cognitive Subdomains and Extrapyramidal Signs in Alzheimer Disease: A Clinical Research Center for Dementia of South Korea (CREDOS) Study

Choi J, Myung W, Song J, Kim SH, Yoon H, Kang HS, Na DL, Kim SY, Lee JH, Han SH, Choi SH, Kim S, Kim DK

  • KMID: 2334527
  • J Korean Geriatr Psychiatry.
  • 2013 Jun;17(1):20-25.
OBJECTIVES: We aimed to investigate the prevalence of Extrapyramidal signs (EPS) and the associations between EPS and cognitive subdomains in patients with Alzheimer disease (AD). METHODS: We recruited 1,324 patients with...
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Association between the BDNF Val66Met Polymorphism and Chronicity of Depression

Lee Y, Lim SW, Kim SY, Chung JW, Kim J, Myung W, Song J, Kim S, Carroll BJ, Kim DK

  • KMID: 2316246
  • Psychiatry Investig.
  • 2013 Mar;10(1):56-61.
OBJECTIVE: Both clinical and biological factors influence the course of depressive disorders. This study tested for associations between the brain-derived neurotrophic factor (BDNF) gene at the Val66Met locus and the...
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Association between Insight and Neuropsychiatric Symptoms in Alzheimer's Dementia : A Clinical Research Center for Dementia of South Korea Study (CREDOS)

Yoon H, Myung W, Song J, Choi JB, Kang HS, Na DL, Kim SY, Lee JH, Han SH, Choi SH, Kim SY, Kim DK

OBJECTIVES: The aim of this study was to identify the association between insight and neuropsychiatric symptoms in patients with Alzheimer's dementia (AD). METHODS: We examined 2607 patients with AD in the...
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Association between Depression and Education Level in Alzheimer's Dementia : A CREDOS (Clinical Research Center for Dementia of South Korea) Study

Song J, Myung W, Lee Y, Kim S, Yoon H, Choi J, Kang HS, Lim SW, Na DL, Kim SY, Lee JH, Han SH, Choi SH, Kim SY, Kim DK

  • KMID: 2334171
  • J Korean Geriatr Psychiatry.
  • 2012 Jun;16(1):31-37.
OBJECTIVES: We aimed to identify the association depression with education level in patients with Alzheimer's dementia (AD). METHODS: We examined 911 patients with AD in CREDOS (Clinical Research Center for Dementia...
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Serotonin Transporter Gene Polymorphisms and Chronic Illness of Depression

Myung W, Lim SW, Kim J, Lee Y, Song J, Chang KW, Kim DK

Clinical course of depression is variable. The serotonin transporter gene is one of the most studied genes for depression. We examined the association of serotonin transporter gene polymorphisms with chronicity...
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