Abstract Title:

Prevalence of vitamin D deficiency in rheumatoid arthritis and association with disease activity and cardiovascular risk factors: data from the COMEDRA study.

Abstract Source:

Clin Exp Rheumatol. 2016 Sep 30. Epub 2016 Aug 30. PMID: 27749232

Abstract Author(s):

Stella Cecchetti, Zuzana Tatar, Pilar Galan, Bruno Pereira, Céline Lambert, Gael Mouterde, Angela Sutton, Martin Soubrier, Maxime Dougados

Article Affiliation:

Stella Cecchetti


OBJECTIVES: The relationship between vitamin D and rheumatoid arthritis (RA) activity remains controversial. RA is a cardiovascular risk factor. A low level of vitamin D may increase blood pressure (BP) and decrease HDL-cholesterol.

OBJECTIVES: We aimed to determine the prevalence of vitamin D deficiency in RA patients compared to controls, and also to investigate the relationship between vitamin D and RA activity, and between vitamin D and cardiovascular risk factors.

METHODS: Patients in the COMEDRA study with established inactive RA (1987 ACR criteria) were matched with subjects from the NUTRINET-SANTE cohort (age, gender, latitude, sampling season). Vitamin D deficiency was defined as<10 ng/mL, and insufficiency as 10 to 29.9 ng/mL.

RESULTS: Eight hundred and ninety-four RA patients were analysed, of which 861 were matched with controls. The prevalence of vitamin D insufficiency and deficiency was lower in RA patients than in controls: 480 (55.8%) vs. 508 (59%) and 31 (3.6%) vs. 45 (5.23%), respectively; p=0.04. There was an inverse correlation between vitamin D levels and RA activity assessed by DAS28-CRP (p=0.01), SDAI (p<0.001) and CDAI (p=0.001), but not DAS28-ESR after adjustment for age, gender, inclusion season, body mass index (BMI), vitamin D supplementation, disease duration, RF or anti-CCP status and RA treatments. Vitamin D levels were inversely correlated with BMI (p<0.001), but not with BP, total cholesterol, LDL-cholesterol, HDL-cholesterol or blood glucose.

CONCLUSIONS: This study demonstrates that vitamin D is inversely correlated with RA activity and BMI, but not with other cardiovascular risk factors.

Study Type : Human Study

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Sayer Ji
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