9/22/2023 0 Comments Download calcium and vitamin dFor dietary calcium intake, the overall OR was 0.94 (95% CI 0.92–0.97), suggesting a reducing effect with a 6% decrease in CRC risk for every 300 mg of calcium ingested daily. There were 37 selected studies, 32 for intake of calcium, that involved 24,353 CRC cases and 30,650 controls, and 23 for that of VIT D, with a total of 19,076 cases and 36.746 controls included. The articles were located in three databases (PUBMED, EMBASE and SCOPUS), they should be written in English language, with a case and control design and published between 1 January 1970 and 31 October 2019. The aim of this study is to analyze the current evidence about the relationships between calcium/vitamin D and CRC based on case–control studies according to sex, tumor location and continental region to complement the information obtained in meta-analyses of other designs.
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