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Accuracy of Xpert Clostridium difficile assay for the diagnosis of Clostridium difficile infection: A meta analysis

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  • Yuanyuan Bai
  • Xiaorong Sun
  • Yan Jin
  • Yueling Wang
  • Juan Li

Abstract

Background: There is an urgent need for rapid and accurate microbiological diagnostic assay for detection of Clostridium difficile infection (CDI). We assessed the diagnostic accuracy of the Xpert Clostridium difficile assay (Xpert CD) for the diagnosis of CDI. Methods: We searched PubMed, EMBASE, and Cochrane Library databases to identify studies according to predetermined criteria. STATA 13.0 software was used to analyze the tests for sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, diagnostic odds ratio, and area under the summary receiver operating characteristic curves (AUC). QUADAS-2 was used to assess the quality of included studies with RevMan 5.2. Heterogeneity in accuracy measures was tested with Spearman correlation coefficient and Chi-square. Results: A total of 22 studies were included in the meta-analysis. The pooled sensitivity (95% confidence intervals [CI]) was 0.97 (0.95–0.99) and specificity was 0.95 (0.94–0.96). The AUC was 0.99 (0.97–0.99). Significant heterogeneity was observed when we pooled most of the accuracy measures of selected studies. Conclusions: The Xpert CD assay is a useful diagnostic tool with high sensitivity and specificity in diagnosing toxigenic CDI, and this method has excellent usability due to its rapidity and simplicity.

Suggested Citation

  • Yuanyuan Bai & Xiaorong Sun & Yan Jin & Yueling Wang & Juan Li, 2017. "Accuracy of Xpert Clostridium difficile assay for the diagnosis of Clostridium difficile infection: A meta analysis," PLOS ONE, Public Library of Science, vol. 12(10), pages 1-13, October.
    • Handle: RePEc:plo:pone00:0185891
    DOI: 10.1371/journal.pone.0185891
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    References listed on IDEAS

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    1. Hee-Won Moon & Hyeong Nyeon Kim & Mina Hur & Hee Sook Shim & Heejung Kim & Yeo-Min Yun, 2016. "Comparison of Diagnostic Algorithms for Detecting Toxigenic Clostridium difficile in Routine Practice at a Tertiary Referral Hospital in Korea," PLOS ONE, Public Library of Science, vol. 11(8), pages 1-8, August.
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