Vitamin D supplementation reduces the occurrence of colorectal polyps in high-latitude locations.
case_control · Level III
Where this comes from
- Record sourced from PubMed, PMID 32247012.
- Also identified by DOI 10.1016/j.ypmed.2020.106072.
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Abstract
There is suggestive evidence for the role of vitamin D in the development of colorectal cancer (CRC). Due to high latitudes in Canada, many Canadians are vitamin D deficient throughout winter. In this analysis, we examined the association between vitamin D supplement use and high-risk adenomatous polyps (HRAPs). The study population was drawn from the biorepository at the Forzani & MacPhail Colon Cancer Screening Centre (CCSC) in Calgary. Individuals enrolled between 2013 and 2016 between the age of 50 and 74 years (n = 1409) were included. When examining the association between any supplemental vitamin D use and HRAPs, a protective effect is observed with an OR<sub>adj</sub> of 0.57 (95% CI: 0.33-0.96). Similarly, meeting the recommended daily intake (RDI) of vitamin D (600 IU) is protective against HRAPs with an OR<sub>adj</sub> of 0.78 (95% CI: 0.62-0.99). This study suggests that adequate vitamin D supplementation reduces the occurrence of colorectal polyps in high-latitude locations.
Medical subject headings
- Adenomatous Polyps
- Colonic Polyps
- Dietary Supplements
- Vitamin D