Vitamin D insufficiency in Brazilian patients with SLE: prevalence, associated factors, and relationship with activity
In: Lupus, Jg. 20 (2011), Heft 10, S. 1019-1026
academicJournal
Zugriff:
The influence of vitamin D on the severity of systemic lupus erythematosus (SLE) has been studied. Our objectives were to determine the prevalence of vitamin D insufficiency in Brazilian lupus patients and its relationship with demographic, clinical, and laboratory variables and to study the relationship between vitamin D insufficiency and disease activity. This is a cross-sectional study of 159 SLE patients. Levels of serum 25-hydroxyvitamin D (25(OH)D) <30 ng/ml were defined as vitamin D insufficiency and <20 ng/ml as deficiency. Data collected included sex, age, ethnicity, postmenopausal status, disease duration, cumulative amount of oral glucocorticoids (GC) in the last six months, duration of GC usage, calcium and vitamin D supplements, photosensitivity, sunscreen usage, sun exposure, diabetes mellitus, creatinine clearance, lifestyle habits, and smoking. Disease activity was measured by the SLE Disease Activity Index 2000 (SLEDAI-2K). Bivariate statistical analysis was performed using the Mann–Whitney test, Spearman’s correlation coefficient, Chi-square test, and Fisher’s exact test. Multivariate analysis was performed with multiple linear regression. The prevalence of vitamin D insufficiency and deficiency were 37.7% and 8.2%, respectively. Levels of 25(OH) D were not associated with lupus activity score, disease duration, sun exposure, vitamin D supplementation, or use of corticosteroids.
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Vitamin D insufficiency in Brazilian patients with SLE: prevalence, associated factors, and relationship with activity
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Autor/in / Beteiligte Person: | Souto, MID ; Coelho, A ; Guo, C ; Mendonça, LMC ; Argolo, S ; Papi, JAS ; Farias, MLF |
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Zeitschrift: | Lupus, Jg. 20 (2011), Heft 10, S. 1019-1026 |
Veröffentlichung: | SAGE Publications, 2011 |
Medientyp: | academicJournal |
ISSN: | 0961-2033 |
DOI: | 10.1177/0961203311401457 |
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