Abstract

PurposeThere is a great controversy regarding the prognostic significance of epidermal growth factor receptor (EGFR) in glioma patients. The current meta-analysis was conducted to evaluate the effect of abnormal EGFR expression on overall survival in glioma patients.Materials and methodsA comprehensive literature search of PubMed, EMBASE, Google Scholar, Web of Science, and Cochrane Library was conducted. The combined hazard ratio (HR) and its 95% confidence intervals (CIs) were used to evaluate the association between EGFR expression and survival in glioma.ResultsA total of 476 articles were screened, and 17 articles containing 1,458 patients were selected. The quality assessment of the included studies was performed by the Newcastle–Ottawa Scale. Overexpression of EGFR was found to be an indicator of poor prognosis in overall survival in glioma patients (HR =1.72, 95% CI 1.32–2.25, P=0.000, random effect) and glioblastoma multiforme patients (HR =1.57, 95% CI 1.15–2.14, P=0.004, random effect). Subgroup analysis was conducted to explore the source of high heterogeneity.ConclusionThis meta-analysis indicated that high expression of EGFR may serve as a biomarker for poor prognosis in glioma patients.

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