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Hierarchical Cluster Analysis of Peripapillary Retinal Nerve Fiber Layer Damage and Macular Ganglion Cell Loss in Open Angle Glaucoma

Lee K, Bae HW, Lee SY, Seong GJ, Kim CY

PURPOSE: To categorize the structural progression pattern of glaucoma, as detected by optical coherence tomography guided progression analysis, with respect to the peripapillary retinal nerve fiber layer (RNFL) and macular...
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Association between energy intake and skeletal muscle mass according to dietary patterns derived by cluster analysis: data from the 2008 ~ 2010 Korea National Health and Nutrition Examination Survey

Jang BY, Bu SY

PURPOSE: This study investigated major dietary patterns among healthy Korean adults using cluster analysis and analyzed the relationship between energy intake and skeletal muscle mass. METHODS: This study was conducted using...
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Clustering and Switching Patterns in Semantic Fluency and Their Relationship to Working Memory in Mild Cognitive Impairment

Oh SJ, Sung JE, Choi SJ, Jeong JH

BACKGROUND AND PURPOSE: Semantic verbal fluency test is a neuropsychological assessment that can sensitively detect neuropathological changes. Considering its multifactorial features tapping various cognitive domains such as semantic memory, executive...
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Clustering Effects of Metabolic Factors and the Risk of Metabolic Syndrome

Kim YJ, Hwang HR

BACKGROUND: Metabolic syndrome is a major risk factor for cardiovascular disease. Clustering of a combination of individual factors that increase the actual rather than the expected prevalence might be helpful...
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Multiscale Clustering and Profile Visualization of Malocclusion in Korean Orthodontic Patients: Cluster Analysis of Malocclusion

Jeong SR, Kim S, Kim SY, Lim SH

Understanding the classification of malocclusion is a crucial issue in Orthodontics. It can also help us to diagnose, treat, and understand malocclusion to establish a standard for definite class of...
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Significance of Low-Attenuation Cluster Analysis on Quantitative CT in the Evaluation of Chronic Obstructive Pulmonary Disease

Nambu A, Zach J, Kim SS, Jin G, Schroeder , Kim YI, Bowler R, Lynch DA

OBJECTIVE: To assess clinical feasibility of low-attenuation cluster analysis in evaluation of chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS: Subjects were 199 current and former cigarette smokers that underwent CT...
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Molecular Epidemiology of Mycobacterium leprae as Determined by Structure-Neighbor Clustering in Korea found cases

Kim JP

BACKGROUND: It has proven challenging to investigate the molecular epidemiology of Mycobacterium leprae, the causative agent of leprosy, due to difficulties with culturing of the organism and a lack of...
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Allergen Sensitization Pattern by Sex: A Cluster Analysis in Korea

Ohn J, Paik SH, Doh EJ, Park HS, Yoon HS, Cho S

BACKGROUND: Allergens tend to sensitize simultaneously. Etiology of this phenomenon has been suggested to be allergen cross-reactivity or concurrent exposure. However, little is known about specific allergen sensitization patterns. OBJECTIVE: To...
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Clinical Characteristics of Exacerbation-Prone Adult Asthmatics Identified by Cluster Analysis

Kim MA, Shin SW, Park JS, Uh ST, Chang HS, Bae DJ, Cho YS, Park HS, Yoon HJ, Choi BW, Kim YH, Park CS

PURPOSE: Asthma is a heterogeneous disease characterized by various types of airway inflammation and obstruction. Therefore, it is classified into several subphenotypes, such as early-onset atopic, obese non-eosinophilic, benign, and...
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Prediction and visualization of CYP2D6 genotype-based phenotype using clustering algorithms

Kim EY, Shin SG, Shin JG

This study focused on the role of cytochrome P450 2D6 (CYP2D6) genotypes to predict phenotypes in the metabolism of dextromethorphan. CYP2D6 genotypes and metabolic ratios (MRs) of dextromethorphan were determined...
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Text Mining in Biomedical Domain with Emphasis on Document Clustering

Renganathan V

OBJECTIVES: With the exponential increase in the number of articles published every year in the biomedical domain, there is a need to build automated systems to extract unknown information from...
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Clustering of craniofacial patterns in Korean children with snoring

Anderson S, Lim HJ, Kim KB, Kim SW, Kim SJ

OBJECTIVE: The purpose of this study was to investigate whether the craniofacial patterns of Korean children with snoring and adenotonsillar hypertrophy (ATH) could be categorized into characteristic clusters according to...
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Psychological Characteristics of Elderly Visited to the Department of Psychiatry : Focused on the Cluster Analysis of The Minnesota Multiphasic Personality Inventory-2

Yook S, Baek JM, Hahn SW

OBJECTIVE: This study aimed to analyze psychological characteristics of elderly patients. METHODS: The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) data of 110 elderly patients who visited the department of psychiatry was analyzed....
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Risk Factor Clustering in Korean Hypertensive Patients

Kim JY

No abstract available.
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Anger, Anger Expression Types, Problem Behaviors, and Suicide Probability in Adolescent Women using Cluster Analysis

Moon SH, Cho HH

PURPOSE: This cross-sectional study was designed to identify anger-expression types of adolescent women and investigate the relationship between the identified anger-expression types and their problem behaviors and suicide probability. METHODS: The...
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Three clustering patterns among metabolic syndrome risk factors and their associations with dietary factors in Korean adolescents: based on the Korea National Health and Nutrition Examination Survey of 2007-2010

Yu Y, Song Y

BACKGROUND/OBJECTIVE: Even though the prevalence of metabolic syndrome in adolescents is increasing, little is presently known about this syndrome in adolescents. This study aimed to cluster metabolic risk factors as...
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A Symptom Cluster Analysis of Breast Cancer Patients Using a Mediation Model

Kim GD, Jang HJ

PURPOSE: This study was conducted to test whether sleep disturbance mediates the effect of pain on fatigue, whether fatigue mediates the effect of pain on depression, and whether fatigue mediates...
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Hypoxia Activates Toll-like Receptor 4 Signaling in Primary Mouse Hepatocytes Through the Receptor Clustering within Lipid Rafts

Kim DH, Billiar TR

PURPOSE: Transient hypoxia is an initial event that accentuates ischemia/reperfusion (I/R) injury in the liver. Hepatic ischemia/reperfusion (I/R) injury is largely related to innate immunity via Toll-like receptor 4 (TLR4)...
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An Application of the Clustering Threshold Gradient Descent Regularization Method for Selecting Genes in Predicting the Survival Time of Lung Carcinomas

Lee S, Kim Y

  • KMID: 2166262
  • Genomics Inform.
  • 2007 Sep;5(3):95-101.
In this paper, we consider the variable selection methods in the Cox model when a large number of gene expression levels are involved with survival time. Deciding which genes are...
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Prognostication by Cluster Analysis of COX-2, MMP-9 and P53 Expression and?by Clinico-pathologic Correlation Analysis in Non-small Cell Lung Cancer

Shin JW, Choi JH, Park IW, Yoo JH

BACKGROUND: In pathogenesis and prognosis of lung cancer, significance of enormous types of genetic expression were very compounding and undetermined. We performed this study to search association between clinical characteristics...
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