Correction to: Measuring the impact of the Afordable Care Act Medicaid expansion on access to primary care using an interrupted time series approach

Table 1 Demographic variables and primary care access by Affordable Care Act Medicaid expansion status, 2012–2015

Demographic Variables^a	NME^b States	ME^c States	p-value
Access to Care (n, %)
Preventable Hospitalizations	1,096,631 (52.1)	1,006,483 (47.9)	0.2670
State Population	6,127,025	6,191,002	0.8776
18–64 years old
Race (%)
Minorities	41.7	38.9	0.9457
Education (%)
High School Graduate	87.3	86.1	0.0676
Bachelor’s Degree	27.4	30.2	0.0194
Income ($)
MHI	49,006	56,240	0.0005
Per Capita Income	26,381	29,865	0.0194
Poverty (%)
Below FPL	15.3	15.6	0.1704
Income < 10 k	7.2	7.6	0.2244
Food Stamps	14.0	13.5	0.2546
Unemployment	7.0	7.2	0.2595
Health care delivery characteristics
Physician fee index ($)^d	0.60	0.58	0.8029
Medicaid $ per enrollee ($)^e	3,336	5,120	< 0.0001
Income Eligibility, FPL (%)^fIncome Eligibility, FPL (%)^f	80.6	124.1	< 0.0001
Governor Political Affiliation
Democratic	0 (0.0)	27 (100.0)	< 0.0001
Republican	62 (64.6)	34 (35.4)
Control of State Legislature
Democratic	0 (0.0)	45 (100.0)	< 0.0001
Republican	62 (79.5)	16 (20.5)

^aT-test for continuous variables and chi-square test for categorical variables
^bNME: Non-Medicaid expansion states include South Carolina, Wisconsin, Georgia, and Florida
^cME: Medicaid expansion states include Arizona, Kentucky, New Jersey, and New York
^dMedicaid-to-Medicare Fee Index
^eMedicaid spending per enrollee
^fAverage of pre- and post- ACA FPL Medicaid Income Eligibility Limits for parents of dependent children (in a family of three)

ISSN: 1478-4505