Sung-Youn Chun

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BACKGROUND Although government has implemented medical-aid policy that provides assistance to the poor with almost free medical services, there are low-income people who do not receive necessary medical services in Korea. The aim of this study is to highlight the characteristics of Medical-Aid enrollees, the poor not enrolled in Medical-Aid, and the near(More)
OBJECTIVE To examine the association between a changes in social activity and cognitive function in Koreans aged 45 years or older. METHODS Data were obtained from 6076 participants aged 45 years and older included in the Korean Longitudinal Study of Aging (2006-2012). Cognitive function was measured using the mini-mental state examination-Korean version(More)
BACKGROUND Secondhand Smoking (SHS) has been suggested as a major health problem in the world and is known to cause various negative health effects that have in turn caused the deaths of almost 600,000 people per year. Evidence has suggested that SHS may have an effect on health problems and such findings have influenced the implementation of smoking-free(More)
OBJECTIVE To examine the association between the level of Internet addiction and suicidal ideation and suicide attempts in South Korean adolescents, focusing on the roles of family structure and household economic status. METHODS Data from 221 265 middle and high school students taken from the 2008-2010 Korea Youth Risk Behavior Web-based Survey were used(More)
OBJECTIVE To examine the synergistic effect of interaction between perceived health and social activity on depressive symptoms. METHODS We investigated whether the interaction between perceived health and social activity has a synergistic effect on depressive symptoms in the middle-aged and elderly using data from 6590 respondents aged 45 and older in the(More)
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