Methods
Number of study
OR (95% CI)
P value
Time domain
3
0.52 [0.37 0.74]
<0.001
Frequency domain
7
0.56 [0.35 0.90]
0.02
Time-frequency
4
0.69 [0.56 0.84]
0.003
Nonlinear
1
0.66 [0.48 0.92]
0.01
Combination
3
0.20 [0.07 0.58]
0.003
Table 5:
Results of meta-analysis of different methods based on Definition 2 (ROSC)
