Young Ki Chung

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The aim of this study was to investigate predictors of adolescence suicidality in a longitudinal study. Additionally, the prevalence of deliberate self-harm behavior and suicide ideation at age 7 and during middle school were examined. Initial assessment data was obtained from 1998 to 2000, and a follow-up assessment was performed in 2006 when the original(More)
BACKGROUND AND AIMS Heat shock proteins (HSPs) have been regarded as cytoprotectants that protect brain cells during the progression of neurodegenerative diseases and from damage resulting from cerebral ischemia. In this study, we assessed the association between plasma HSP 70/27 levels and cognitive decline. METHODS Among participants in the(More)
In this study, we used data from a longitudinal sample, followed from childhood (age 7) to adolescence (age 13–15), to identify the early childhood risk factors correlated with adolescent delinquency according to gender, since such studies are rare [1–3]. At baseline, 3,808 first grade pupils participated in an epidemiological study on child psychiatric(More)
This study prospectively examined the relationships among cognitive factors and severity of Posttraumatic stress disorder (PTSD) symptoms in female victims of sexual violence. Thirty-eight victims of sexual violence recruited from Center for Women Victims of Sexual and Domestic Violence at Ajou University Hospital. Cognitive factors and PTSD symptom were(More)
Our study aimed to examine the relationship between perceived sleep quality and depression using Pittsburgh Sleep Quality Index (PSQI) and Cole's model to materialize the concept of perceived sleep quality in the non-cognitively impaired elderly. Older adults aged 60+ were recruited from the baseline study of Suwon Project (SP) between 2009 and 2011(More)
This study investigated the socio-demographic characteristics and emotional and behavioral factors associated with the perceived need and actual use of adolescent mental health services according to genders in Korea. We assessed 1,857 middle school students aged 14-16 years. We administered a self-reported questionnaire including questions on their(More)
BACKGROUND We aimed to examine differential effects of WMH on progression of depressive symptoms according to APOE ε4 status in the elderly. METHODS We obtained data from elderly Korean subjects (n=707) aged 60 years or older at baseline from the CREDOS study from November 2005 to July 2014. A linear mixed model stratified according to APOE genotype (APOE(More)
BACKGROUND We compared the validity of models of subcortical ischemic depression (SID) and depression-executive dysfunction syndrome (DED) in predicting functional disability in the elderly. METHODS We obtained data from elderly Korean subjects (n=1356) aged 60 years or older at baseline from the CREDOS study from November 2005 to July 2014. A generalized(More)
To determine the association between frontal lobe function and risk of hip fracture in patients with Alzheimer disease (AD).Retrospective cohort study using multicenter hospital-based dementia registry and national health insurance claim data was done. Participants who had available data of neuropsychological test, national health insurance claim, and other(More)
Relatively few studies have examined the psychological predictors of cognitive functions in the elderly. We aimed to investigate the relationship between MAI and cognition in the non-cognitively impaired (NCI) elderly. Data obtained from 1345 Korean subjects aged 60+ years were analyzed. MAI was defined as the discrepancy between subjective memory age and(More)