Table 3.

Changes in health outcomes between counties that changed regionalization status and counties that did not during the same period

	Secondary Outcomes (Health)
	7-day mortality	30-day mortality	90-day mortality	1-year mortality	30-day readmission
Number of patients	117896	117896	117896	117896	139257
Sample mean at baseline (%)	9.1%	13.6%	16.6%	21.4%	27.4%
Unadjusted for site of care PCI capacity
Percentage point change on and after county is regionalized	−0.53	−0.46	−0.38	−0.32	−1.75
95% CI	[−1.00,−0.06]	[−1.12,0.20]	[−1.05,0.28]	[−0.87,0.23]	[−3.39,−0.11]
Unadjusted p-value	0.027	0.170	0.250	0.250	0.037
Adjusted p-value for multiple comparison	0.045	0.212	0.250	0.250	0.053
Adjusted for site of care PCI capacity
Percentage point change on and after county is regionalized	−0.37	−0.24	−0.15	−0.03	−0.70
95% CI	[−0.90,0.16]	[−0.98,0.49]	[−0.87,0.58]	[−0.58,0.51]	[−2.01,0.62]
Unadjusted p-value	0.167	0.508	0.684	0.908	0.292
Adjusted p-value for multiple comparison	0.835	0.908	0.908	0.908	0.908

Abbreviations: CI – confidence interval; PCI – percutaneous coronary intervention

Full regression controls for patient demographics, insurance category, comorbid conditions, county fixed effects, and year dummies are presented in Supplemental Table I.