Youl Lee Lym

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BACKGROUND The association between hormone therapy (HT) use and lung cancer risk is inconsistent in epidemiological studies. This meta-analysis was conducted to examine the association between HT and lung cancer risk. METHODS We searched MEDLINE (PubMed), EMBASE, and the Cochrane Library in April 2008. All articles searched were independently reviewed and(More)
OBJECTIVE To examine the association of diabetes mellitus and early age-related macular degeneration (AMD) in Korean adults 50 years and older. METHODS This study included 3008 participants aged 50 to 87 years. Early AMD was assessed from retinal photographs based on a modified Wisconsin AMD grading system. Diabetes mellitus was defined as a fasting(More)
Vitamin D is an important factor for bone health. It is uncertain which lifestyle is associated with vitamin D status, especially in healthy middle aged Asian men. A cross-sectional analysis was performed in 149 men aged 40-69 years who visited a health check-up center in Korea. Serum vitamin D (25-OHD3) was measured and smoking, alcohol, exercise,(More)
This study was to evaluate the effect of additional brief counseling by a primary care physician on lifestyle modification of examinees after a periodic health examination. 1,000 participants of the 2007 Korean national health screening program were asked to note any variation in their health behavior after participating in the screening program. The degree(More)
Department of Family Medicine, Seoul National University Hospital, Seoul; Department of Family Medicine, Healthcare System Gangnam Centre, Seoul National University Hospital, Seoul; Department of Family Medicine, Konkuk University Hospital, Seoul; Department of Health Policy and Management, Seoul National University College of Medicine, Seoul; National(More)
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. pISSN 1011-8934 eISSN 1598-6357 Effect of Aditional(More)
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