Red cell distribution width, platelet-to-lymphocyte ratio, and mean platelet volume in ankylosing spondylitis and their correlations with inflammation: A meta-analysis
- Authors
- Song, Gwan Gyu; Lee, Young Ho
- Issue Date
- 2-9월-2020
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- Blood cell count; ankylosing spondylitis; inflammation; relationship
- Citation
- MODERN RHEUMATOLOGY, v.30, no.5, pp.894 - 899
- Indexed
- SCIE
SCOPUS
- Journal Title
- MODERN RHEUMATOLOGY
- Volume
- 30
- Number
- 5
- Start Page
- 894
- End Page
- 899
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/53196
- DOI
- 10.1080/14397595.2019.1645373
- ISSN
- 1439-7595
- Abstract
- Objectives: To evaluate the relationship between red cell distribution width (RDW), platelet-to-lymphocyte ratio (PLR), and mean platelet volume (MPV) and ankylosing spondylitis (AS) and establish a correlation between these haematological indices and AS inflammation. Methods: We searched the Medline, Embase, and Cochrane databases, performed a meta-analysis comparing RDW, PLR, and MPV in patients with AS to controls, and examined correlation coefficients between RDW, PLR, and MPV and C-reactive protein (CRP). Results: Eleven studies were included in this meta-analysis, which revealed that RDW was significantly higher in the AS group than in the control group (standardized mean difference (SMD) = 0.687, 95% confidence interval (CI) = 0.110-1.265, p = .020). However, PLR was not significantly higher in the AS group than in the control group (SMD = 0.197, 95% CI = -0.045-0.439, p = .111). No evidence of elevated MPV in the AS group was found (SMD = -0.005, 95% CI = -0.411-0.400, p = .979). Meta-analysis of correlation coefficients revealed that RDW was positively associated with CRP (correlation coefficient = 0.327, 95% CI = 0.214-0.431, p < .001). PLR was positively associated with CRP (correlation coefficient = 0.444, 95% CI = 0.283-0.581, p < .001). In addition, the meta-analysis showed a correlation between MPV and CRP (correlation coefficient = 0.217, 95% CI = 0.080-0.346, p = .002). Conclusion: This meta-analysis demonstrated that RDW is higher in patients with AS, and a significant positive correlation exists between RDW, PLR, and MPV and CRP.
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