Correlation between the Uptake of 18F-Fluorodeoxyglucose (18F-FDG) and the Expression of Proliferation-Associated Antigen Ki-67 in Cancer Patients: A Meta-Analysis

Sheng-ming Deng, Wei Zhang, Bin Zhang, Yin-yin Chen, Ji-hui Li and Yi-wei Wu

PLOS ONE, 2015, vol. 10, issue 6, 1-18

Abstract: Objective: To study the correlation between 18F-FDG uptake and cell proliferation in cancer patients by meta-analysis of published articles. Methods: We searched PubMed (MEDLINE included), EMBASE, and Cochrane Database of Systematic Review, and selected research articles on the relationship between 18F-FDG uptake and Ki-67 expression (published between August 1, 1994-August 1, 2014), according to the literature inclusion and exclusion criteria. The publishing language was limited to English. The quality of included articles was evaluated according to the Quality Assessment of Diagnosis Accuracy Studies-2 (QUADAS-2). The correlation coefficient (r) was extracted from the included articles and processed by Fisher's r-to-z transformation. The combined correlation coefficient (r) and the 95% confidence interval (CI) were calculated with STATA 11.0 software under a random-effects model. Begg's test was used to analyze the existence of publication bias and draw funnel plot, and the sources of heterogeneity were explored by sensitivity and subgroup analyses. Results: According to the inclusion and exclusion criteria, 79 articles were finally included, including 81 studies involving a total of 3242 patients. All the studies had a combined r of 0.44 (95% CI, 0.41-0.46), but with a significant heterogeneity (I2 = 80.9%, P

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0129028

DOI: 10.1371/journal.pone.0129028

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