Maria Theodorou1, Thomas Sersté2, Marc Van Gossum3, Stéphane Dewit4. 1. Internal Medicine, CHU Saint Pierre, Université libre de Bruxelles, Bruxelles, Belgium. 2. Hepato-Gastroenterology and Clinical nutrition, CHU Saint Pierre, Université libre de Bruxelles, Bruxelles, Belgium. Electronic address: thomas.serste@skynet.be. 3. Hepato-Gastroenterology and Clinical nutrition, CHU Saint Pierre, Université libre de Bruxelles, Bruxelles, Belgium. 4. Infectious Diseases, CHU Saint Pierre, Université libre de Bruxelles, Bruxelles, Belgium.
Abstract
BACKGROUND AND AIMS: The high prevalence of vitamin D deficiency in HIV-infected patients has been demonstrated but there are still controversies regarding to the role of antiretroviral therapy (ART) in this setting. The aims of this study was to validate factors associated with vitamin D deficiency in a large cohort of HIV-infected patients. METHODS: A retrospective analysis of 2044 consecutive patients from December 2005 to March 2011 was conducted. Factors independently associated with vitamin D deficiency (<30 ng/ml and <10 ng/ml) were analyzed. Vitamin D levels were compared according to CD4 count, viral load and ART modalities. RESULTS: vitamin D was <30 ng/ml in 89.2% and <10 ng/ml in 32.4%. The median value was 13.8 ng/ml (4-102). Winter season, female sex, heterosexual acquisition of HIV, the need of second lines (complex and sequential treatment modalities) and a longer duration of ART were independently associated with vitamin D deficiency (<30 ng/ml). CD4 count <200/μl, advanced stages of disease and the current efavirenz use were independently associated with severe vitamin D deficiency (<10 ng/ml). Median vitamin D levels was 14.1 ng/dl when CD4 ≥200/μl, 11.5 ng/dl when CD4<200 (p = 0.0003). The ART modalities had a significant influence on vitamin D concentrations, the highest vitamin D level was observed in the absence of treatment. CONCLUSIONS: In HIV-infected patients, vitamin D deficiency is associated with ART modalities and duration. The most severe vitamin D deficiencies are associated with low CD4 count, the use of efavirenz and advanced stages of disease severity.
BACKGROUND AND AIMS: The high prevalence of vitamin D deficiency in HIV-infectedpatients has been demonstrated but there are still controversies regarding to the role of antiretroviral therapy (ART) in this setting. The aims of this study was to validate factors associated with vitamin D deficiency in a large cohort of HIV-infectedpatients. METHODS: A retrospective analysis of 2044 consecutive patients from December 2005 to March 2011 was conducted. Factors independently associated with vitamin D deficiency (<30 ng/ml and <10 ng/ml) were analyzed. Vitamin D levels were compared according to CD4 count, viral load and ART modalities. RESULTS:vitamin D was <30 ng/ml in 89.2% and <10 ng/ml in 32.4%. The median value was 13.8 ng/ml (4-102). Winter season, female sex, heterosexual acquisition of HIV, the need of second lines (complex and sequential treatment modalities) and a longer duration of ART were independently associated with vitamin D deficiency (<30 ng/ml). CD4 count <200/μl, advanced stages of disease and the current efavirenz use were independently associated with severe vitamin D deficiency (<10 ng/ml). Median vitamin D levels was 14.1 ng/dl when CD4 ≥200/μl, 11.5 ng/dl when CD4<200 (p = 0.0003). The ART modalities had a significant influence on vitamin D concentrations, the highest vitamin D level was observed in the absence of treatment. CONCLUSIONS: In HIV-infectedpatients, vitamin D deficiency is associated with ART modalities and duration. The most severe vitamin D deficiencies are associated with low CD4 count, the use of efavirenz and advanced stages of disease severity.
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