Patients receiving both calcium and vitamin D had a 9% lower mortality rate through 3 years of treatment than those not receiving vitamin D (HR 0.91, 95% CI 0.84 to 0.98), according to Lars Rejnmark, MD, PhD, of Aarhus University in Aarhus, Denmark, and colleagues.

via Medical News: Vitamin D Plus Calcium May Cut Mortality Risk – in Primary Care, Diet & Nutrition from MedPage Today.

How about a non-prescription supplement and vitamin questionnaire?