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. 2021 Feb 17;73(4):446–450. doi: 10.1016/j.ihj.2021.02.004

Table 3.

Factors affecting ROSC, 24-h survival and survival to discharge.

Factors ROSC 24-h survival Survival to hospital discharge
Age 0.98 (0.96–1.02)
p = 0.457 		0.98(0.95–1.02)
p = 0.541 		0.954 (0.893–1.020)
p = 0.168
Gender1 1.83 (0.66–5.06)
p = 0.244 		1.69(0.46–6.24)
p = 0.42 		1.241 (0.11–13.95)
p = 0.861
Arrival time2
(Night vs Morning)		 0.41 (0.12–1.2)
p = 0.127 		0.33(0.07–1.63)
p = 0.176 		–
Witnessed3 2.09 (0.76–5.7)
p = 0.148 		2.31(0.64–8.26)
p = 0.2 		1.103 (0.098–12.392)
p = 0.937
Bystander CPR4 1.25 (0.26–5.93)
p = 0.771 		2.46(0.49–12.47)
p = 0.278 		–
Duration of CA 0.94 (0.88–0.99)
p = 0.047 		0.98(0.92–1.04)
p = 0.558 		1.002 (0.911–1.101)
p = 0.972
Non-traumatic vs Traumatic5 3.66 (0.47–28.52)
p = 0.216 		1.96 (0.24–16.04)
p = 0.527 		–
Shockable6 18.97 (3.83–93.89)
p < 0.001 		42.67(7.69–234.32)
p < 0.001 		16.33(1.29–205.89)
p = 0.031

Reference variables: 1: Male 2: Morning duty hours (8 am-8 pm) 3: Unwitnessed 4: No CPR 5: Traumatic CA 6: Non shockable.