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World Journal of Surgical Oncology
Published in: World Journal of Surgical Oncology 1/2019

Open Access 01-12-2019 | Cervical Cancer | Research

Prognostic role of pretreatment thrombocytosis on survival in patients with cervical cancer: a systematic review and meta-analysis

Authors: Weijuan Cao, Xiaomin Yao, Danwei Cen, Yajun Zhi, Ningwei Zhu, Liyong Xu

Published in: World Journal of Surgical Oncology | Issue 1/2019

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Abstract

Background

This meta-analysis summarized the prognostic role of an elevated platelet count before treatment on survival outcomes in patients with cervical cancer.

Methods

The PubMed, Embase, and Cochrane library electronic databases were systematically searched for studies reporting the effect estimates with 95% confidence intervals (CIs) of pretreatment thrombocytosis on survival from the database inceptions to December 2018. The pooled hazard ratios (HRs) with 95% CIs for overall survival (OS), progression-free survival (PFS), and recurrence-free survival (RFS) were calculated using random-effects models.

Results

Nineteen retrospective studies that recruited 6521 patients with cervical cancer were eligible for this study. The summary results indicated that an elevated platelet count was significantly associated with a poor OS (HR 1.50; 95% CI 1.19–1.88; P = 0.001), PFS (HR 1.33; 95% CI 1.07–1.64; P = 0.010), and RFS (HR 1.66; 95% CI 1.20–2.28; P = 0.002). Sensitivity analysis indicated that the pooled PFS was variable after sequential exclusion of individual studies. The predictive value of pretreatment thrombocytosis on OS differed according to the publication year (P = 0.039), country (P = 0.013), and sample size (P = 0.029), and the role of pretreatment thrombocytosis on PFS could be affected by the study quality (P = 0.046).

Conclusion

The findings of this study indicated that an elevated platelet count before treatment was associated with poor OS, PFS, and RFS. These results require further verification in large-scale prospective studies.
Appendix
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Metadata
Title
Prognostic role of pretreatment thrombocytosis on survival in patients with cervical cancer: a systematic review and meta-analysis
Authors
Weijuan Cao
Xiaomin Yao
Danwei Cen
Yajun Zhi
Ningwei Zhu
Liyong Xu
Publication date
01-12-2019
Publisher
BioMed Central
Published in
World Journal of Surgical Oncology / Issue 1/2019
Electronic ISSN: 1477-7819
DOI
https://doi.org/10.1186/s12957-019-1676-7

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