Table 1 Patient demographics

Number of patients

91 (100)

69 (76)

22 (24)

Age

63.5 (60.2–66.8)

64.9 (61.4–68.3)

61.5 (53.7–69.3)

0.263^b

Female sex

23 (25)

16 (23)

7 (32)

0.400^a

OHCA

57 (63)

44 (64)

13 (59)

0.223^a

Time to ROSC (min)

27 (23–30)

28 (24–33)

19 (10–28)

0.024^b

First documented rhythm shockable

32 (35)

18 (26)

14 (64)

0.001^a

Mechanical circulatory support

13 (14)

9 (13)

4 (17)

0.868^a

IABP

10 (11)

7 (10)

3 (13)

ECMO

3 (3)

2 (3)

1 (4)

Hypothermia 33 °C

53 (58)

42 (61)

11 (50)

0.365^a

Lactate

7.2 (6.2–8.2)

7.9 (6.7–9.2)

5.1 (3.4–6.7)

0.018^b

NSE

108.8 (84.3–133.2)

139.4 (109.8–168.9)

20.3 (14.7–25.9)

< 0.001^b

eGFR

51.4 (46.2–56.7)

50.5 (45.2–55.9)

52.9 (38.1–67.7)

0.700^b

APACHE II

29 (26–31)

28 (26–31)

29 (23–35)

0.770^a

SAPS II

58 (54–62)

59 (55–64)

55 (45–65)

0.401^a