The National Center for Health Statistics (NCHS) just released updated and expanded data on health insurance coverage. The report, Health Insurance Coverage: Estimates from the National Health Interview Survey, January – June 2013 includes estimates by state Medicaid expansion status and estimates by state Health Insurance Marketplace type as of October 31, 2013. These data provide baseline estimates for lack of health insurance, public health plan coverage, and private health insurance coverage prior to implementation of Health Insurance Marketplaces and Medicaid expansion that will begin in January 2014.
Children 0–17 years of age and adults 18–64 years of age in states adopting Medicaid expansion were less likely to be uninsured than children and adults in states not moving forward with the expansion. Also, adults aged 18–64 in states moving forward with Medicaid expansion were more likely to have public coverage than adults in states not moving forward with expansion.
Children 0–17 years of age and adults 18–64 years of age in states with a Federally Facilitated Marketplace were more likely to be uninsured than children and adults in states with a State-based Marketplace or states with a Partnership Marketplace.