1.Analysis of mismatch repair status in relation to clinicopathological characteristics and prognosis in colon cancer
Chao WANG ; Zhidong GAO ; Kewei JIANG ; Xiaodong YANG ; Bin LIANG ; Zhanlong SHEN ; Kai SHEN ; Peng GUO ; Jian CAO ; Yancheng CUI ; Mujun YING ; Shan WANG ; Yingjiang YE
Chinese Journal of General Surgery 2019;34(4):349-352
Objective To investigate the influence of mismatch repair status on clinicopathological characteristics and prognosis in patients with colon cancer.Methods Patients who underwent radical excision for colon cancer between Nov 2012 and Mar 2016 at Peking University People's Hospital were enrolled.Clinicopathological data and prognosis were collected.Multivariate analysis were used to identify independent characteristics of MMR-deficient colon cancer.The influence of MMR-deficient on prognosis of colon cancer were analyzed through Kaplan-Meier curve.Results The overall rate of MMR-deficient in colon cancer was 17.1％ (51/299).Multivariate logistic regression analysis showed that low differentiation (OR =3.555,95％ CI:1.685-7.640,P ＜ 0.001),right-sided colon cancer (OR =5.645,95％ CI:2.483-14.715,P ＜ 0.001) and UICC Stage Ⅰ-Ⅱ (OR =4.099,95％ CI:1.863-9.840,P ＜0.001) were associated with MMR-deficient colon cancer.Conclusion Low differentiation,right-sided colon cancer and UICC Stage Ⅰ-Ⅱ were more common in MMR-deficient colon cancer.
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