Table 3 Results of signal detection analysis concerning the association between the time (min.) from the call to arrival at the hospital and 1-month survival among patients with out-of-hospital cardiac arrest presenting with ventricular fibrillation

1

≤4(Group 1)/≥5(Group 2)

(0.00%)

(31.08%)

2

≤5(Group 1)/≥6(Group 2)

(0.00%)

(31.08%)

3

≤6(Group 1)/≥7(Group 2)

(25.00%)

(31.08%)

4

≤7(Group 1)/≥8(Group 2)

(60.00%)

(31.06%)

5

≤8(Group 1)/≥9(Group 2)

(66.67%)

(31.05%)

6

≤9(Group 1)/≥10(Group 2)

(54.55%)

(31.04%)

7

≤10(Group 1) ≥11(Group 2)

(56.52%)

(31.02%)

8

≤11(Group 1)/≥12(Group 2)

(52.05%)

(31.00%)

9

≤12(Group 1)/≥13(Group 2)

(47.54%)

(30.98%)

10

≤13(Group 1)/≥14(Group 2)

(50.00%)

(30.92%)

11

≤14(Group 1)/≥15(Group 2)

(50.71%)

(30.81%)

12

≤15(Group 1) ≥16(Group 2)

(50.00%)

(30.67%)

13

≤16(Group 1)/≥17(Group 2)

(50.15%)

(30.44%)

14

≤17(Group 1)/≥18(Group 2)

(46.85%)

(30.31%)

15

≤18(Group 1)/≥19(Group 2)

(45.92%)

(30.06%)

16

≤19(Group 1)/≥20(Group 2)

(44.57%)

(29.81%)

17

≤20(Group 1) ≥21(Group 2)

(43.83%)

(29.57%)

18

≤21(Group 1)/≥22(Group 2)

(43.54%)

(29.12%)

19

≤22(Group 1)/≥23(Group 2)

(42.25%)

(28.84%)

20

≤23(Group 1)/≥24(Group 2)

(40.23%)

(28.76%)

21

≤24(Group 1)/≥25(Group 2)

(39.80%)

(28.34%)

22

≤25(Group 1) ≥26(Group 2)

(39.15%)

(27.97%)

23

≤26(Group 1)/≥27(Group 2)

(38.87%)

(27.39%)

24

≤27(Group 1)/≥28(Group 2)

(37.78%)

(27.25%)

25

≤28(Group 1)/≥29(Group 2)

(37.11%)

(26.91%)

26

≤29(Group 1)/≥30(Group 2)

(36.69%)

(26.47%)

27

≤30(Group 1) ≥31(Group 2)

(36.14%)

(26.24%)

28

≤31(Group 1)/≥32(Group 2)

(35.52%)

(26.06%)

29

≤32(Group 1)/≥33(Group 2)

(35.16%)

(25.67%)

30

≤33(Group 1)/≥34(Group 2)

(34.63%)

(25.60%)

31

≤34(Group 1)/≥35(Group 2)

(34.33%)

(25.42%)

32

≤35(Group 1) ≥36(Group 2)

(33.91%)

(25.41%)

33

≤36(Group 1)/≥37(Group 2)

(33.56%)

(25.41%)

34

≤37(Group 1)/≥38(Group 2)

(33.23%)

(25.51%)

35

≤38(Group 1)/≥39(Group 2)

(32.94%)

(25.53%)

36

≤39(Group 1)/≥40(Group 2)

(32.64%)

(25.75%)

37

≤40(Group 1) ≥41(Group 2)

(32.37%)

(26.12%)

38

≤41(Group 1)/≥42(Group 2)

(32.16%)

(26.43%)

39

≤42(Group 1)/≥43(Group 2)

(31.91%)

(27.07%)

40

≤43(Group 1)/≥44(Group 2)

(31.74%)

(27.52%)

41

≤44(Group 1)/≥45(Group 2)

(31.60%)

(27.96%)

42

≤45(Group 1) ≥46(Group 2)

(31.44%)

(28.67%)

43

≤46(Group 1)/≥47(Group 2)

(31.38%)

(28.83%)

44

≤47(Group 1)/≥48(Group 2)

(31.25%)

(29.63%)

45

≤48(Group 1)/≥49(Group 2)

(31.22%)

(29.84%)

46

≤49(Group 1)/≥50(Group 2)

(31.15%)

(30.32%)

47

≤50(Group 1)/≥51(Group 2)

(31.15%)

(30.33%)