Table II.

Crude reperfusion therapy treatment rates by race and US Census region

	US Census regions
	Overall	Northeast	Midwest	West	South	Non-South US
n	204230	39445	56466	41765	66554	137676
Any reperfusion therapy
Overall	69.6	65.4	69.0	72.5	70.9	69.0
Black	66.5	67.9	68.3	70.7	64.5	68.8
White	69.9	65.3	69.0	72.6	71.7	69.0
P	<.0001	.032	.39	.11	<.0001	.65
Racial difference (99% CI)	−3.3 (−4.4, −2.2)	2.7 (−0.5, 5.8)	−0.7 (−2.9, 1.5)	−1.9 (−5.1, 1.2)	−7.1 (−8.7, −5.6)	−0.3 (−1.8, 1.3)
Thrombolytic agents
Overall	53.8	59.3	49.6	51.5	55.6	52.9
Black	52.3	59.9	49.3	54.4	51.5	53.1
White	53.9	59.3	49.6	51.4	56.0	52.9
P	.0004	.66	.79	.028	<.0001	.77
Racial difference (99% CI)	−1.6 (−2.8, −0.4)	0.6 (−2.7, 3.9)	−0.2 (−2.6, 2.1)	3.0 (−0.5, 6.5)	−4.5 (−6.1, −2.8)	0.2 (−1.5, 1.9)
Percutaneous coronary intervention
Overall	15.2	5.9	18.7	20.2	14.7	15.5
Black	13.8	8.0	18.7	15.6	12.5	15.3
White	15.3	5.8	18.7	20.3	14.9	15.5
P	<.0001	.0004	1.00	<.0001	<.0001	.71
Racial difference (99% CI)	−1.5 (−2.3, −0.7)	2.2 (0.4, 4.0)	0.0 (−1.8, 1.9)	−4.8 (−7.3, −2.2)	−2.4 (33.5, 31.3)	−0.2 (−1.4, 1.0)

Treatment rates reported as the proportion of patients who received the therapy.

Racial difference reported as the absolute difference in treatment rates between black patients and white patients with negative numbers indicating lower treatment rates among blacks compared with whites.

P < .0001 or lower for Mantel-Hanzel tests of heterogeneity in effect of race on treatment across 4 US Census regions and for the comparison of the South vs the rest of the United States for all 3 reperfusion therapy endpoints.

Note: Treatment by thrombolytic agents and percutaneous coronary intervention does not equal “any reperfusion therapy ” as 1300 (0.6%) patients who underwent immediate coronary bypass surgery for reperfusion therapy are not reported.