A Meta-Analysis of SMAD4 Immunohistochemistry as a Prognostic Marker in Colorectal Cancer

Translational Oncology
Philip W VoorneveldJames C H Hardwick

Abstract

SMAD4 immunohistochemistry is considered a valuable prognostic marker in colorectal cancer, but individual studies have often been small and the results variable. A meta-analysis could potentially clarify these findings. In September 2014, a Pubmed and Google Scholar search was conducted to find publications that reported the prognostic value of SMAD4 expression. A meta-analysis was performed to clarify the association between SMAD4 expression and survival outcomes. 137 studies were found, of which 13 were considered eligible. The studies consisted of a total of 3800 patients. Three different endpoints were taken into account, namely, overall survival (OS), disease-free survival (DFS), and cancer-specific survival (CSS). In addition, the studies were divided into univariate and multivariate analyses. The pooled hazard ratios were given as follows: univariate CSS = 1.75 [95% confidence interval (CI): 0.93-3.32; z= 1.69; P= .09]; multivariate CSS = 2.17 (95% CI: 1.56-3.01; z= 4.65; P= .000); univariate DFS = 2.11 (95% CI: 1.36-3.28; z= 3.32; P= .001); multivariate DFS = 2.15 (95% CI: 1.56-3.01; z= 4.65; P= .000); univariate OS and DFS = 2.30 (95% CI: 1.41-3.73; z= 3.36; P= .001); univariate OS = 2.28 (95% CI: 1.30-4.00; z= 2.89; ...Continue Reading

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Citations

Oct 13, 2016·Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract·Fei SuBaoquan Liu
Mar 26, 2019·Expert Review of Molecular Diagnostics·Lili DuanDaiming Fan
May 4, 2018·Journal of Clinical Pathology·Aoife J McCarthy, Runjan Chetty
Nov 27, 2019·Intestinal research·Hyung-Hoon Oh, Young-Eun Joo
Dec 9, 2017·Cancer Biology & Therapy·Lei YangXiaojing Zhang
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