Table 2

Bivariate regression analysis of demographic factors with patient outcome

	Missing points	Coefficient	SE	Z value	P value
Age	0	−0.06	0.02	−2.71	<0.01
Gender	0	0.37	0.51	0.72	0.47
Initial pH	0	1.73	1.50	1.15	0.25
Initial lactate	4	0.06	0.07	−0.94	0.35
Shockable arrest rhythm	0	2.534	0.62	4.1	<0.01
Age—middle	0	−0.26	0.60	−0.43	0.67
Age—old	0	−1.95	0.74	−2.64	<0.01