Bar chart shows Opportunities to collect data within the health care system by persons in the United States, age 18-64, in millions. Population (note a), 186.7; Insured by private or government insurance (note a), 173; Hospitalized (note b), 12.9; Visit to doctor's office, emergency department, or home visited (note b), 149; Medical home (note c), 47. Note a, U.S. Census Bureau, 2000. Note b, National Center for Health Statistics (NCHS), 2009. Note c, Beal, 2004.
