Health Insurance Coverage: Early Release of Estimates from the National Health Interview Survey
http://www.cdc.gov/nchs/data/nhis/earlyrelease/insur200909.pdf
Reports that 44.9 million persons of all ages or 14.9% were uninsured during January-March 2009. Also reports that 57 million persons or 19% had been uninsured for at least part of the year prior to the survey. Provides statistics on lack of insurance coverage by demographic and economic characteristics. From the National Center for Health Statistics.