| | |
Number and 1-month survival rate (%)
|
χ
2
value
|
P
value
|
|---|
| | |
Group 1
|
Group 2
| | |
|---|
|
1
|
≤1(Group 1)/≥2(Group 2)
|
3003
|
(35.74%)
|
3477
|
(27.93%)
|
142.68
|
<0.0001
|
|
2
|
≤2(Group 1)/≥3(Group 2)
|
4677
|
(34.48%)
|
1803
|
(24.75%)
|
209.61
|
<0.0001
|
|
3
|
≤3(Group 1)/≥4(Group 2)
|
5616
|
(33.15%)
|
864
|
(22.11%)
|
180.63
|
<0.0001
|
|
4
|
≤4(Group 1)/≥5(Group 2)
|
6065
|
(32.48%)
|
415
|
(19.06%)
|
163.82
|
<0.0001
|
|
5
|
≤5(Group 1)/≥6(Group 2)
|
6260
|
(31.86%)
|
220
|
(18.29%)
|
97.50
|
<0.0001
|
|
6
|
≤6(Group 1)/≥7(Group 2)
|
6374
|
(31.48%)
|
106
|
(17.49%)
|
53.78
|
<0.0001
|
|
7
|
≤7(Group 1) ≥8(Group 2)
|
6425
|
(31.34%)
|
55
|
(15.71%)
|
39.23
|
<0.0001
|
|
8
|
≤8(Group 1)/≥9(Group 2)
|
6454
|
(31.25%)
|
26
|
(13.13%)
|
30.06
|
<0.0001
|
|
9
|
≤9(Group 1)/≥10(Group 2)
|
6464
|
(31.18%)
|
16
|
(13.11%)
|
18.49
|
<0.0001
|
- The patients were divided into ≤ 2 shocks (Group 1) and ≥ 3 shocks groups (Group 2) based on the number of defibrillation shocks, determined by the largest Chi-squared value.
