December 8, 2016
Based on a cohort in Minnesota from 1985 through 2014, researchers found the yearly occurrence of mixed connective tissue disease to be two people per 100,000.
Using individual medical record review, Patompong Ungprasert, MD, in the Division of Rheumatology at the Mayo Clinic in Minnesota, and colleagues assessed a cohort based in Olmsted County, Minnesota. Diagnosis of mixed connective tissue disease (MCTD) required fulfillment of at least one of the four widely accepted criteria. The researchers also collected data on demographic characteristics, clinical presentation, laboratory investigations and mortality.