Background Vitamin D is a steroid hormone with pleiotropic effects on physiological processes. Among others, immune system regulation and their analogues prevent symptom development of autoimmune diseases such as SLE. A previous research in a colombian clinic found a prevalence of hipovitaminosis D of 87% in healthy population, but hypovitaminosis D is higher in SLE patients than healthy controls.

Objectives To establish the prevalence of hypovitaminosis D in patients with SLE and relationship with SLEDAI – 2K.

Methods A cross sectional study was carried out. 80 medical records with a diagnoses of SLE o CIE-10 M30-M36 were identified and we included patients>18 years of age who meet at least 4 of the 11 criteria to diagnoses of SLE for medical record. The analysis included means, DS and Kruskall Wallis with p-value<0.05.

Results The majority of patients are women (94%), with an average age of 39.9 years, married (41%), with secondary education (56.7%) and different occupations. It was found that the patients with higher activity, had lower vitamin D levels. Additionally, if the patient had lupus nephritis, vitamin D levels decreased even more.

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Abstract AB0618 – Figure 1

Conclusions Patients with active systemic lupus Erythematosus, (SLE) have hypovitaminosis D more frequently and we noticed that patients with renal involvement have the lowest levels of vitamin D, which justifies a later analysis.

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[5] Dall, era M., et al. in Kelley&Firestein,s Textbook of Rheumatology. 10th Ed, Elsevier; Philadelphia 2017; 1368–89.

Disclosure of Interest None declared