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자료유형
학술저널
저자정보
Mun Young Yoo (Department of Family Medicine Samsung Medical Center Sungkyunkwan University School of Medicine Seo) Jungkwon Lee (Department of Family Medicine Samsung Medical Center Sungkyunkwan University School of Medicine Seo) Ji In Chung (Department of Health Promotion Center Samsung Medical Center Sungkyunkwan University School of Medi) Yohwan Yeo (Department of Family Medicine Samsung Medical Center Sungkyunkwan University School of Medicine Seo) In Young Cho (Department of Family Medicine Kangbuk Samsung Hospital Sungkyunkwan University School of Medicine S)
저널정보
대한가정의학회 Korean Journal of Family Medicine Korean Journal of Family Medicine 제42권 제4호
발행연도
2021.1
수록면
303 - 309 (7page)

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Background: As indoor activity increases with modern lifestyles changes, reduced exposure to sunlight may lead to reduced vitamin D synthesis. Previous studies demonstrated that increased vitamin D level is associated with decreased risk of colon cancer; therefore, this study attempted to determine the association between vitamin D and colon polyps, which may be precancerous lesions, in participants who underwent colonoscopy exams. Methods: A total of 31,004 participants who underwent routine health checkups, including vitamin D level and colonoscopy, at Samsung Medical Center in South Korea from 2010 to 2018 were included in the study. Colorectal polyps were diagnosed through biopsy after performing colonoscopy exams. Participants were categorized into three groups according to level of vitamin D (deficient: <20 ng/mL), insufficient: 20≤ vitamin D <30 ng/mL, and sufficient: ≥30 ng/mL). We analyzed the presence of colorectal polyps according to vitamin D level, and performed multiple logistic regression analyses for the association between vitamin D level and colorectal polyps. Results: About 50% of participants had colorectal polyps (hyperplastic polyp, n=4,864; adenomatous polyp, n=10,470; adenocarcinoma, n=24). There were no significant associations between vitamin D categories and colorectal polyp and colorectal cancer. However, when further analyzing by type of polyp, the risk of hyperplastic polyps significantly decreased with increasing vitamin D levels (P for trend=0.006). Conclusion: We did not find evidence for an association between vitamin D and overall colorectal polyps; however, we observed a trend for decreased odds of hyperplastic polyps with increased vitamin D levels in comparison to vitamin D deficient subjects.

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