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Meta-Analysis
. 2017 Oct 24;12(10):e0186860.
doi: 10.1371/journal.pone.0186860. eCollection 2017.

Epstein-Barr virus infection and oral squamous cell carcinoma risk: A meta-analysis

Yangyang She  1 , Xiaolin Nong  1 , Min Zhang  2 , Menglin Wang  3
Affiliations
Meta-Analysis

Epstein-Barr virus infection and oral squamous cell carcinoma risk: A meta-analysis

Yangyang She et al. PLoS One. .

Erratum in

Abstract

Background: The evidence for association between Epstein-Barr virus (EBV) infection and risk of oral squamous cell carcinoma (OSCC) is inconsistent in the literature. Therefore, this meta-analysis was conducted to clarify this association.

Methods: A literature search was conducted in electronic databases for English- and Chinese-language publications until March 31, 2017 to include eligible case-control studies. The pooled odds ratio (OR) and 95% confidence interval (95% CI) were estimated to determine the association between EBV infection and OSCC risk using a fixed- or random-effects model based on heterogeneity. Publication bias was assessed using funnel plot analysis.

Results: A total of 13 case-control studies with 686 OSCC patients and 433 controls were included based on predetermined inclusion and exclusion criteria. The pooled OR with 95% CI between EBV infection and OSCC risk was 5.03 (1.80-14.01) with significant heterogeneity observed (I2 = 87%). The subgroup analysis indicates that the year of publication, study location, economic level, sample size, tissue type, detection method and marker, control type, and language might explain potential sources of heterogeneity. Publication bias was not observed, and sensitivity analysis showed stable results.

Conclusions: The results of the current meta-analysis suggest that EBV infection is statistically associated with increased risk of OSCC. However, additional high-quality studies with larger sample sizes are needed to further confirm the relationship between EBV and OSCC.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Flow diagram of the study selection process and results of the literature search.
Fig 2
Fig 2. Forest plot of the association between EBV infection and OSCC risk.
Fig 3
Fig 3. Sensitivity analyses by omitting individual study.
Fig 4
Fig 4. Cumulative meta-analysis for evaluating the temporal trend in the association between EBV infection and OSCC risk.
Fig 5
Fig 5. Funnel plot for publication bias regarding the association between EBV infection and OSCC risk.
See this image and copyright information in PMC

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