Silver Book Fact
In 2005, 133 million people had at least one chronic condition. The number will increase to 157 million by 2020.
Anderson G. Chronic Conditions: Making the case for ongoing care. Washington, D.C.: PhRMA; 2007. http://www.fightchronicdisease.org/sites/default/files/docs/ChronicCareChartbook_FINAL_0.pdf