Reducing Unnecessary Vitamin D Screening in an Academic Health System: What Works and When.

Vitamin D deficiency is relatively common, with an estimated prevalence between 19 and 77% in the United States.1,2 Low serum 25(OH)D levels have been associated with increased cardiovascular and all-cause mortality3 and other adverse outcomes.4,5 Further, Vitamin D supplementation is safe and low-cost. However, associations between Vitamin D supplementation and various outcomes have been mixed/have not been definitive,6 and there is limited evidence that population-based screening for Vitamin D deficiency improves outcomes