. 2019 Sep 17;56:0046958019873807. doi: 10.1177/0046958019873807

Table 2.

Medians (IQR) for Percentage Uninsured and PCP Density by Region and Medicaid Expansion^a.

Percentage uninsured
	Nation	West^b	South	Midwest	Northeast
Preexpansion
		15.46 (4.39)	15.72 (3.91)	10.42 (3.13)^**	9.18 (2.45)^**
ME 0^c	15.40 (5.10)	14.70 (4.36)	16.24 (4.24)^*	10.68 (3.80)^**	10.59 (1.19)^**
ME 1	11.79 (5.51)^**	15.76 (4.34)	14.57 (3.00)^**	10.28 (2.87)^**	9.05 (2.47)^***
Postexpansion
		7.84 (3.69)	10.29 (4.38)^**	5.61 (2.92)^**	4.95 (1.94)^**
ME 0^c	10.40 (4.06)	9.73 (2.57)	11.37 (4.34)^**	7.82 (3.64)^**	7.81 (0.46)
ME 1	5.68 (2.61)^**	7.24 (3.54)^**	5.86 (3.62)^**	5.17 (2.11)^**	4.89 (1.73)^* ^**
PCP density
	Nation	West	South	Midwest	Northeast
Preexpansion
		6.62 (3.10)	5.26 (2.66)^**	5.78 (3.14)	6.94 (3.19)
ME 0^c	5.46 (2.60)	5.30 (2.42)	5.12 (2.61)	6.03 (2.62)	11.22 (3.21)^**
ME 1	6.13 (3.33)^**	6.85 (2.97)^**	5.70 (3.05)^**	5.66 (3.29)^**	6.69 (3.17)^*
Postexpansion
		6.24 (3.12)	5.19 (2.64)^**	5.46 (3.17)	6.64 (3.42)
ME 0^c	5.30 (2.62)	4.95 (2.41)	5.06 (2.53)	5.72 (2.56)	11.13 (3.48)^**
ME 1	5.90 (3.34)^**	6.37 (3.11)^**	5.48 (3.12)	5.31 (3.47)^**	6.55 (3.43)^*

Note. IQR = interquartile range; PCP = primary care physician; ME 1 = Medicaid expansion; ME 0 = No Medicaid expansion.

Adjustments may be made for multiple comparisons using a Bonferroni approach by comparing P values to the α level (0.05) divided by 6 when comparing regions.

Reference column for pairwise 2-sided Dwass, Steel, Critchlow-Flinger comparison analyses by row.

Reference row for median tests nationally and within each region (column).

P < .05. **P < .01, for comparisons with reference region (West) within each row.