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High prevalence of vitamin D deficiency among patients with cutaneous lupus erythematosus

The prevalence of vitamin D deficiency was measured in 55 patients with chronic discoid lupus erythematosus (CDLE) or subacute cutaneous lupus erythematosus (SCLE). Vitamin D was measured as 25-OH-vitamin D. Of the 55 patients, the majority (94.5%) had serum vitamin D levels < 30 ng/mL and 6 patients had < 10 ng/mL. Vitamin D levels were similar in CDLE and SCLE patients but were lower in those with a long history of lupus. Daily intake of vitamin D-rich foods did not protect against hypovitaminosis D. Photosensitivity was found to be a risk factor for this phenomenon (Cutillas-Marco, E. et al. 68th Annu Meet Am Acad Dermatol (March 5-9, Miami) 2010, ...