Chronic disease to cost $47 trillion by 2030, World Economic Forum (September 18, 2011)

 The global economic impact of the five leading chronic diseases -- cancer, diabetes, mental illness, heart disease, and respiratory disease -- could reach $47 trillion over the next 20 years.
http://www.reuters.com/article/2011/09/18/us-disease-chronic-costs-idUSTRE78H2IY20110918