The relationship between cholecystolithiasis or cholecystectomy and the risk of colorectal cancer: a Meta-analysis / 中华肝胆外科杂志

ABSTRACT

Objective@#To analyze the correlations between cholecystolithiasis or cholecystectomy and the risk of colorectal cancer, and make a brief summary combining with the present study.@*Methods@#Qualified studies about the correlations between cholecystolithiasis or cholecystectomy and the risk of colorectal cancer published in English and Chinese before April 2018 were retrieved from PubMed, Cochrane Library, China National Knowledge Infrastructure(CNKI), Wan Fang Data, and VIP. Case-control and cohort studies were selected according to the inclusion and exclusion criteria and assessed by the Newcastle-Ottowa Scale, then we chose the high-quality literature to extract the data and analyze those data by RevMan 5.3 software. Publication bias was analyzed by Stata 12.1 software.@*Results@#A total of 28 articles were finally included in the systematic review, including 23 case-control studies and 5 cohort studies. The results showed that there is a significant relationship between cholecystolithiasis and the risk of colorectal cancer(OR=1.70, 95%CI 1.39~2.08, P<0.05)、colon cancer(OR=1.74, 95%CI 1.36~2.23, P<0.05)、rectal cancer (OR=1.35, 95%CI 1.02~1.80, P<0.05). The results showed a risk of colorectal cancer(OR=1.31, 95%CI 1.14~1.51, P<0.05) and colon cancer (OR=1.20, 95%CI 1.05~1.36, P<0.05) after cholecystectomy, but the risk is significantly less than the risk in patients with gallstone. And there is no relevance between cholecystectomy and the risk of rectal cancer(OR=0.89, 95%CI 0.73~1.08, P>0.05).@*Conclusion@#There is a positive association between cholecystolithiasis and colorectal cancer, but cholecystectomy itself may be not the risk of rectal cancer.