Evaluation of the Mean Platelet Volume in Children with Juvenile Idiopathic Arthritis
Velat Şen 1 * , Aydın Ece 2, Ünal Uluca 1, Ali Güneş 1, İlhan Tan 1, Tuba Tuncel 3, Fesih Aktar 1, Buğra Yıldırım 1
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1 Dicle University Medical School Department of Pediatrics, Diyarbakır, Turkey
2 Dicle University Medical School Department of Pediatric Rheumatology, Diyarbakır, Turkey
3 Katip Çelebi University Medical School Department of Pediatric Allergy and Immunology, İzmir, Turkey
* Corresponding Author


Juvenile idiopathic arthritis (JIA) is the most common chronic inflammatory arthritis in children. Mean platelet volume (MPV) is an indicator of platelet size and has been investigated as an inflammation marker in several diseases. This study was designed to investigate the MPV values in patients with JIA and healthy subjects, and determine the correlation between MPV, C-reactive protein (CRP), and erythrocyte sedimentation rate (ESR). The hospital records of a total of 40 children with JIA, diagnosed using the International League of Associations for Rheumatology (ILAR) criteria, and 40 healthy controls were enrolled into the study. White blood cell count (WBC), platelet count, CRP, ESR, and MPV levels were retrospectively recorded. Children with JIA had significantly higher MPV values (8.28±1.12 fL) compared to the control group (7.53±1.07 fL) (p=0.003). Significant correlations were found between MPV, ESR, and CRP in the JIA group (r=0.676, p<0.001 and r=0.430, p<0.006). In addition, a negative correlation was found between platelet count and MPV (r= -0.818, p<0.001) in JIA patients. There was no significant difference in WBC values between the patient and the control groups (p>0.05). Our results suggest that MPV levels may be a useful marker of inflammation and prognostic factor for atherosclerosis risk in pediatric JIA patients.


This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Original Article


EUR J GEN MED, 2014 - Volume 11 Issue 4, pp. 262-267

Publication date: 15 Oct 2014

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Article Downloads: 834

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