Table 2.

Crude and Adjusted Hazard Ratio for survival for after-hours relative to regular hours primary PCI

	Crude HR (95% CI)	HR-1 adjusted* (95% CI)	Adjusted HR-2† (95% CI)
30-day survival	1.34 (0.85 to 2.12)	1.26 (0.78 to 2.02)	1.23 (0.77 to 1.99)
1-year survival	1.18 (0.81 to 1.72)	1.08 (0.73 to 1.59)	1.06 (0.71 to 1.56)

^*HR-1 adjusted for all variables in table 1.

^†HR-2 adjusted for variables in table 1 plus door-to-balloon time.