An estimated 36 million U.S. residents lacked health insurance at some time during 2014, 8.8 million fewer than in 2013, according to a report released yesterday by the Centers for Disease Control and Prevention. The proportion of residents who were uninsured when interviewed for the National Health Interview Survey fell 2.9 percentage points in 2014, to 11.5% from 14.4% in 2013. The uninsured rate for adults under age 65 fell 4 percentage points in Medicaid expansion states, compared with 2.4 percentage points in non-expansion states. The report also includes estimates by Health Insurance Marketplace type and for various demographic groups.