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Prognostic Value of Epidermal Growth Factor Receptor Mutations in Resected Non-Small Cell Lung Cancer: A Systematic Review with Meta-Analysis

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  • Zhixuan Zhang
  • Ting Wang
  • Jun Zhang
  • Xiaohong Cai
  • Changchuan Pan
  • Yu Long
  • Jing Chen
  • Chengya Zhou
  • Xude Yin

Abstract

Background: The prognostic value of epidermal growth factor receptor (EGFR) mutations in resected non-small cell lung cancer (NSCLC) remains controversial. We performed a systematic review with meta-analysis to assess its role. Methods: Studies were identified via an electronic search on PubMed, Embase and Cochrane Library databases. Pooled hazard ratio (HR) for disease-free survival (DFS) and overall survival (OS) were calculated for meta-analysis. Results: There were 16 evaluated studies (n = 3337) in the meta-analysis. The combined HR evaluating EGFR mutations on disease free survival was 0.96 (95% CI [0.79–1.16] P = 0.65). The combined HR evaluating EGFR mutations on overall survival was 0.86 (95% CI [0.72–1.04] P = 0.12). The subgroup analysis based on univariate and multivariate analyses in DFS and OS showed no statistically significant difference. There was also no statistically significant difference in DFS and OS of stage I NSCLC patients. Conclusion: The systematic review with meta-analysis showed that EGFR mutations were not a prognostic factor in patients with surgically resected non-small cell lung cancer. Well designed prospective study is needed to confirm the result.

Suggested Citation

  • Zhixuan Zhang & Ting Wang & Jun Zhang & Xiaohong Cai & Changchuan Pan & Yu Long & Jing Chen & Chengya Zhou & Xude Yin, 2014. "Prognostic Value of Epidermal Growth Factor Receptor Mutations in Resected Non-Small Cell Lung Cancer: A Systematic Review with Meta-Analysis," PLOS ONE, Public Library of Science, vol. 9(8), pages 1-11, August.
    • Handle: RePEc:plo:pone00:0106053
    DOI: 10.1371/journal.pone.0106053
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