Silver Book Fact
Of Medicare fee-for-service patients with chronic conditions, more are treated for diabetes than any other condition (24.3%).
Schneider K, O'Donnell B, Dean D. Prevalence of Multiple Chronic Conditions in the United States’ Medicare Population. Health Qual Life Outcomes. 2009; 7: 82. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2748070/