Sung-Youn Chun

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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)
BACKGROUND We compared the health-promoting behavior of long-term cancer survivors with those of the general population to identify necessary behavioral interventions to reduce the health risk among cancer patients. MATERIALS AND METHODS We used data from the 2007 and 2012 Korea National Health and Nutrition Examination Surveys (KNHANES IV [2007~2009] and(More)
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 The cancer survival rate in Korea has substantially increased, necessitating the management of not only patients with cancer but also longer term survivors. Although the divorce rate has drastically increased in Korea, there is not sufficient research regarding the relationship between changes in marital status and quality of life (QOL) in cancer(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)
AIM Spousal death is a significant event that becomes a turning point in an individual's life. Widowed persons experience new circumstances, which might induce depression. However, the effects of spousal death on depression can differ by sex and culture. Thus, the present study examined the association between depressive levels and experience of spousal(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)
BACKGROUND We evaluated the effectiveness of a policy allowing for the sale of over-the-counter drugs outside of pharmacies by examining its effect on number of monthly outpatient visits for acute upper respiratory infections, dyspepsia, and migraine. METHOD We used medical claims data extracted from the Korean National Health Insurance Cohort Database(More)
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