Using survey data from 2,000 low-income adult respondents in each of f
ive states, this DataWatch assesses how uninsured, low-income adults d
iffer from low-income adults who have public or private insurance and
how Medicaid expansions have affected insurance coverage patterns acro
ss states with different eligibility policies. Findings show that the
proportion of low-income uninsured adults is two to three times higher
in states that have not expanded Medicaid eligibility beyond relative
ly low welfare levels. Compared with persons who have either Medicaid
or private insurance, uninsured persons report more difficulties getti
ng needed care, are less likely to have a regular provider, and rate t
he care they do receive as lower quality.