BioMed Research International / 2019 / Article / Tab 2

Review Article

Clinical Efficacy of Extracorporeal Cardiopulmonary Resuscitation for Adults with Cardiac Arrest: Meta-Analysis with Trial Sequential Analysis

Table 2

Results of subgroup analysis based on different standards.

CharacteristicsSurvival outcomeNeurologic outcome
NRR(95%CI)P value for heterogeneityI2 (%)P values Between subgroupsNRR(95%CI)P value for heterogeneityI2(%)P values between subgroups

All111.60(1.25-2.06)0.163072.69(1.63-4.46)0.0846
Nation0.910.21
 Eastern countries101.63(1.23-2.13)0.113752.23(1.52-3.27)0.0229
 Western countries11.56(0.74-3.27)NANA23.66(1.85-7.25)0.2381
Propensity score matching0.970.008
 Yes81.65(1.14-2.40)0.064951.87(1.29-2.71)0.480
 No31.67(1.19-2.34)0.96026.97(2.89-16.79)0.630
Presumed aetiology0.310.74
 Cardiac-origin61.37(1.06-1.76)0.44042.57(1.74-3.82)0.0365
 Not stated51.80(1.13-2.89)0.085232.58(1.39-4.82)0.2821
Witnessed arrest0.030.23
 Witnessed62.22(1.57-3.14)0.42032.02(1.21-3.39)0.650
 Not stated51.26(1.01-1.59)0.351044.08(1.46-11.37)0.0270
Study quality0.200.43
 High quality71.90(1.39-2.59)0.153742.20(1.33-3.62)0.460
 Low quality41.32(1.04-1.68)0.39133.65(1.15-11.54)0.0177

Abbreviations: N= number of participants, NA=not application, RR= relative risk, and CI=confidence interval;

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