Uninsured adults were more likely than their counterparts with public or private insurance to report "a big problem" accessing a physician specialist for care in 2007, according to a new report by the Agency for Healthcare Research and Quality. Nearly 27% of uninsured adults under age 65 found it very hard to access a physician specialist, compared with 16% of those with public insurance and 6% of those with private health insurance. Adults without a usual source of care also were more likely to report access problems than those with a usual source of care. The findings are from the federal Medical Expenditure Panel Survey.