Table 3. Average annual percent change (95% confidence interval) in event rates (per 10,000 persons) of STEMI by infarct location, adjusted for age and race. The ARIC Study – Community Surveillance, 1987-2008.

	Women		Men
STEMI location	Avg. annual % change (95% C.I.)	P-value†	Avg. annual % change (95% C.I.)	P-value†
Anterior	-3.2 (-5.9, -0.5)†	0.10‡	-4.3 (-5.8, -2.8)†	<0.001‡
Inferior	-4.2 (-5.6, -2.7)	<0.001	-5.4 (-6.8, -4.0)	<0.001
Lateral	-3.1 (-5.8, -0.4)	0.03	-4.5 (-6.4, -2.5)	<0.001
Multiple	-0.7 (-3.1, 1.7)	0.55	-1.5 (-3.2, 0.4)	0.13
Total	-3.1 (-4.1, -2.1)	<0.01	-4.0 (-4.7, -3.3)	<0.01

Abbreviations: STEMI, ST elevation myocardial infarction

^*Negative numbers indicate a decrease in incidence rates

^†P-value from Wald test of hypothesis that average annual percent change is zero.

^‡Average annual percent change and P-value from a quadratic regression model. All other estimates and P-values from a linear regression model using a Wald test.