. Author manuscript; available in PMC: 2014 Nov 1.

Published in final edited form as: J Expo Sci Environ Epidemiol. 2013 May 29;23(6):573–580. doi: 10.1038/jes.2013.24

Table 1.

Relative increase in odds of a transmural infarction associated with an IQR increase in PM_2.5 concentration, by exposure Tier

Tier	IQR	N	AIC	OR	95% CI	p-value
Tier 1	10.3	1561	4397.4	1.10	1.01, 1.19	0.03
Tier 2A SHEDS	5.4	1561	4397.2	1.10	1.01, 1.20	0.03

Tier 1	10.3	1552^*	4367.7	1.09	1.01, 1.19	0.04
Tier 2B APP	5.4	1552^*	4366.8	1.10	1.01, 1.20	0.02

Tier 1	10.3	1561	4397.4	1.10	1.01, 1.19	0.03
Tier 3 HYBRID	5.4	1561	4396.1	1.11	1.02, 1.20	0.01

Subjects were excluded if there was a period of more than nine days between STN PM_2.5 species concentration measurements for the case period or all control periods