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Cancer Cell International
Published in: Cancer Cell International 1/2018

Open Access 01-12-2018 | Primary Research

Prognostic role of RDW in hematological malignancies: a systematic review and meta-analysis

Authors: Lisha Ai, Shidai Mu, Yu Hu

Published in: Cancer Cell International | Issue 1/2018

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Abstract

Background

Red blood cell distribution width (RDW), a biomarker for discrimination of anemia, has been recently identified as a prognostic factor in various types of cancer. Here we performed a meta-analysis in order to assess the correlation between RDW and the survival outcomes in patients with hematologic malignances.

Patients/methods

We systematically searched PubMed, Embase, and ISI Web of Science for relevant studies, to investigate the prognostic significance of RDW in hematological malignancies. Odds ratios or hazards ratios (HRs) with corresponding 95% confidence intervals (CIs) are pooled to estimate the association between RDW and clinicopathological parameters of patients with hematologic malignances.

Results

Seven trials with 1031 patients suffering from hematological malignancies were included in the meta-analysis, and the results indicated that increased pretreatment RDW predicted poor overall survival (HR = 2.35, 95% CI 1.70–3.24), poor progress-free survival (HR = 2.44, 95% CI 1.70–3.49) and poor event-free survival (EFS) (HR = 3.15, 95% CI 1.59–6.25). Furthermore, the similar results were observed in subgroup analysis stratified by cancer type, such as multiple myeloma, and diffuse large B cell lymphoma, etc.

Conclusions

As for hematologic malignances, patients with higher RDW are more likely to have poorer prognosis than those with lower RDW.
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Metadata
Title
Prognostic role of RDW in hematological malignancies: a systematic review and meta-analysis
Authors
Lisha Ai
Shidai Mu
Yu Hu
Publication date
01-12-2018
Publisher
BioMed Central
Published in
Cancer Cell International / Issue 1/2018
Electronic ISSN: 1475-2867
DOI
https://doi.org/10.1186/s12935-018-0558-3

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