Table 4. Hazard ratio for 30-day mortality.

Variable	Hazard ratio	95% CI	P-value
Mixed effects model for 30-day mortality using Weibull distribution with LGA in which case occurred as a mixed effect. LGA: local government area; NSTEMI: non-ST elevation myocardial infarction; STEMI: ST elevation myocardial infarction.
Age 64-77 yrs (compared with age 18-63 yrs)	1.34	1.17-1.53	< 0.001
Age > 77 yrs (compared with age 18-63 yrs)	2.26	1.96-2.60	< 0.001
Female	1.08	0.97-1.21	0.18
Initial systolic blood pressure, mmHg	1.0	1.0-1.0	< 0.001
Initial pulse rate, beats/min	1.0	1.0-1.0	< 0.001
Pre-hospital cardiac arrest	3.99	3.09-5.17	< 0.001
STEMI	1.82	1.54-2.16	< 0.001
NSTEMI	1.78	1.43-2.22	< 0.001
Inpatient coronary angiography	0.33	0.28-0.38	< 0.001
Pre-hospital intubation	2.36	1.87-2.98	< 0.001
Pre-hospital epinephrine infusion commenced	0.85	0.71-1.03	0.093