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Association of Red Cell Distribution Width and Mean Platelet Volume With Disease Activity in Rheumatoid Arthritis
Haseeb Ahmed Khan1, Sana Haseeb Khan2, Zaid Tayyab3
1Rheumatology, Dorset County Hospital, Dorchester, GBR.
Cureus
|April 25, 2024
Summary
Red cell distribution width (RDW) and mean platelet volume (MPV) are linked to rheumatoid arthritis (RA) disease activity. Higher RDW and MPV levels correlate with increased RA severity, suggesting their use as simple disease assessment tools.
Area of Science:
- Rheumatology
- Hematology
- Clinical Diagnostics
Background:
- Rheumatoid arthritis (RA) is a chronic systemic inflammatory disorder primarily affecting synovial joints.
- RA leads to significant disability, increased mortality, and economic burdens.
- Identifying reliable markers for RA disease activity is crucial for effective management.
Purpose of the Study:
- To investigate the association between red cell distribution width (RDW) and mean platelet volume (MPV) with disease activity in rheumatoid arthritis patients.
- To evaluate the potential of RDW and MPV as simple tools for assessing RA disease activity.
Main Methods:
- A retrospective study of 100 RA patients diagnosed according to ACR/EULAR 2010 criteria.
- Collected data included patient demographics, clinical history, laboratory results (including RDW and MPV), and disease activity assessed by DAS 28-ESR.
- Linear regression analysis was used to determine the relationship between RDW, MPV, and DAS 28-ESR.
Main Results:
- A strong positive correlation was found between RDW and DAS 28-ESR (r=0.653, p<0.001).
- A moderate positive correlation was observed between MPV and DAS 28-ESR (r=0.366, p<0.001).
- 45% of patients exhibited high disease activity, 34% moderate, 9% low, and 12% were in remission.
Conclusions:
- Both RDW and MPV show a positive correlation with disease activity in RA patients.
- These hematological parameters can serve as accessible and simple indicators for assessing RA disease activity.
- RDW and MPV may aid in guiding treatment decisions for rheumatoid arthritis.

