Table 3. –

Adjusted Logistic Regression Estimates for Survival to Hospital Discharge

	95%CI
Adherent via algorithm	1.05 (0.90, 1.22)
Intended CPR strategy
30:2	Reference
CCC	1.20 (1.04, 1.38)
Adherent*Intended CCC	0.69 (0.57, 0.83)
Sex
Female	Reference
Male	0.96 (0.87, 1.07)
Age	0.97 (0.97, 0.98)
Witness Status
Not witnessed	Reference
EMS	3.20 (2.70, 3.79)
Bystander	2.36 (2.10, 2.65)
No Bystander CPR	Reference
Bystander CPR	1.30 (1.17, 1.45)
Initial Rhythm
VT/VF	Reference
PEA	0.26 (0.23, 0.29)
Asystole	0.06 (0.05, 0.07)
No Shock	0.14 (0.10, 0.21)
Arrival Time (min)	0.92 (0.90, 0.94)
Site A	Reference
Site B	1.50 (1.24, 1.81)
Site C	1.57 (1.21, 2.04)
Site D	1.99 (1.58, 2.52)
Site E	2.11 (1.80, 2.48)
Site F	1.31 (1.10, 1.54)
Site G	2.96 (2.55, 3.44)
Site H	0.70 (0.46, 1.08)

VT/VF = Ventricular Tachycardia/Ventricular fibrillation; PEA = Pulseless electric activity