Expenditures for 6 major chronic conditions. Societal cost data (black bars) were derived from the following sources: chronic pain,38 heart disease,38 cancer,38 diabetes,38 HIV/AIDS,49 and Alzheimer’s disease.48 All societal costs were converted to 2010 dollars. NIH expenditures (gray bars) are from the NIH categorical spending data providedonnih.gov for 2012,72 the most recent year available.