TNM Stages and Prognostic Features of Colorectal and Mucinous Adenocarcinoma Patients: a Meta Analysis

Aim: The significance of the mucinous adenocarcinoma in TNM staging and prognosis for colorectal tumorpatients is still controversial. The aim was to provide a meta-analysis for TNM staging and prognostic featuresof colorectal tumors.
Methods: 30 individual case-control studies were finally included into this meta-analysis,involving a total of 444,489 cancer cases and 45,050 mucinous adenocarcinomas, of relations with TNM stagingand prognostic features.
Results: Compared to non-mucinous adenocarcinoma patients, the TNM IV stageaccounted for a larger percentage of mucinous adenocarcinomas (OR=1.48, 95%CI 1.28-1.71, POR<0.001) andthe prognosis was significantly poor (HR=1.06, 95%CI 1.04-1.08, P<0.001). After heterogeneity testing, the resultswas similar to the holistic approach outcome (HR=1.48, 95%CI 1.35-1.62, P<0.001).
Conclusion: Compared topatients with non-mucinous adenocarcinomas, mucinous adenocarcinoma patients with later TNM staging makeup a big percentage, and mucinous adenocarcinoma is an independent risk factor for poor prognosis.