This document shows percentages of uninsured people by state in the United States for 2010 and 2011. It compares the percentages between the two years and identifies which changes were statistically significant. Overall, the percentage of uninsured people in the US decreased from 16.3% in 2010 to 15.7% in 2011. Several states had statistically significant decreases in uninsured rates such as Colorado, Connecticut, and Massachusetts.