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Apolipoprotein E Gene Polymorphism and Risk for Coronary Heart Disease in the Chinese Population: A Meta-Analysis of 61 Studies Including 6634 Cases and 6393 Controls

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  • Ming-duo Zhang
  • Wei Gu
  • Shi-bin Qiao
  • En-jun Zhu
  • Quan-ming Zhao
  • Shu-zheng Lv

Abstract

Background: Numerous studies have evaluated the association between the apolipoprotein E (apoE) gene polymorphisms in coronary heart disease (CHD). However, the results remain uncertain. We carried out a meta-analysis to derive a more comprehensive estimation of the association in Chinese population. Methods: Case-control studies in Chinese and English publications were identified by searching databases of PubMed, EMBASE, Web of Science, CNKI, CBM, Wanfang, VIP and hand searching of relevant journals and the reference lists of retrieved articles. Odds ratio (OR) and 95% confidence interval (CI) were applied to assess the strength of the associations. Subgroup analysis and sensitivity analysis were performed to explore the between-study heterogeneity. Results: We finally identified 61 relevant studies which comprised 6634 case-patients and 6393 controls. The pooled OR for ε4 carriers was 96% higher than the ε3/3 genotype for CHD (OR, 1.96; 95% CI, 1.70 to 2.24; P

Suggested Citation

  • Ming-duo Zhang & Wei Gu & Shi-bin Qiao & En-jun Zhu & Quan-ming Zhao & Shu-zheng Lv, 2014. "Apolipoprotein E Gene Polymorphism and Risk for Coronary Heart Disease in the Chinese Population: A Meta-Analysis of 61 Studies Including 6634 Cases and 6393 Controls," PLOS ONE, Public Library of Science, vol. 9(4), pages 1-9, April.
    • Handle: RePEc:plo:pone00:0095463
    DOI: 10.1371/journal.pone.0095463
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