Appendix 3A.

	Time from Symptom Onset to Arrival
Payor Type*	≤ 2 hours n = 1070	>2 to 6 hours n = 704	> 6 hours n = 1208	Unadjusted OR (95% CI)	P Value
Commercial/PPO	646 (60.4)	325 (46.2)	533 (44.1)	Reference	Reference
HMO	123 (11.5)	109 (15.5)	199 (16.5)	1.41 (1.16-1.71)	<.001
Medicare	192 (17.9)	181 (25.7)	291 (24.1)	1.49 (1.28-1.73)	<.001
Medicaid	58 (5.4)	53 (7.5)	94 (7.8)	1.56 (1.23-1.99)	<.001
VA	14 (1.3)	7 (1.0)	25 (2.1)	2.06 (1.26-3.36)	.004
Other	37 (3.5)	29 (4.1)	66 (5.5)	1.54 (1.13-2.10)	.006

^*Patients without health insurance were excluded in this analysis.