Vitamin D level in rheumatoid arthritis and its correlation with the disease activity: a meta-analysis
- Authors
- Lee, Young Ho; Bae, Sang Cheol
- Issue Date
- Sep-2016
- Publisher
- CLINICAL & EXPER RHEUMATOLOGY
- Keywords
- vitamin D; deficiency; rheumatoid arthritis; activity
- Citation
- CLINICAL AND EXPERIMENTAL RHEUMATOLOGY, v.34, no.5, pp.827 - 833
- Indexed
- SCIE
SCOPUS
- Journal Title
- CLINICAL AND EXPERIMENTAL RHEUMATOLOGY
- Volume
- 34
- Number
- 5
- Start Page
- 827
- End Page
- 833
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/4964
- ISSN
- 0392-856X
- Abstract
- OBJECTIVES:
This study aimed to evaluate the relationship between the 25-hydroxyvitamin D [25(OH)D] level and rheumatoid arthritis (RA) and the correlation between serum vitamin D level and RA activity.
METHODS:
We searched the PUBMED, EMBASE, and Cochrane databases and performed a meta-analysis examining the vitamin D level and prevalence of vitamin D deficiency in patients with RA compared to healthy controls and the correlation coefficients between the vitamin D level and disease activity score 28 (DAS28) in RA patients.
RESULTS:
Fifteen studies that included a total of 1,143 RA patients and 963 controls were available for this meta-analysis. The meta-analysis showed that the serum vitamin D level in the RA group was significantly lower than that in the control group (SMD=−0.608, 95% CI=−1.105–[−0.017], p=0.017). In addition, the prevalence of vitamin D deficiency was significantly higher in the RA group than in the control group (55.2% vs. 33.2%; OR = 2.460, 95% CI = 1.135–5.332, p=0.023). Thirteen studies evaluated the correlation between the vitamin D level and its activity in 924 RA patients. Meta-analysis showed a significant inverse correlation between the vitamin D level and DAS28 (Correlation coefficient =−0.278, 95% CI =−0.393–[−0.153], p=1.8 x 10⁻⁵).
CONCLUSIONS:
Our meta-analysis demonstrates that serum vitamin D level is significantly low in patients with RA, vitamin D deficiency is prevalent in RA patients compared to controls, and the vitamin D level correlates inversely with RA activity. Our meta-analysis suggests that the vitamin D level is associated with susceptibility to RA and RA activity.
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