Table 1 Details of included studies.

From: Efficacy of extracorporeal cardiopulmonary resuscitation compared to conventional cardiopulmonary resuscitation for adult cardiac arrest patients: a systematic review and meta-analysis

Study	Recruitment period and country	Study type and place of cardiac arrest	Propensity score matching used	OR	Number of participants (ECPR/CCPR)	Age, mean (year) ^a		Outcome
Study	Recruitment period and country	Study type and place of cardiac arrest	Propensity score matching used	OR	Number of participants (ECPR/CCPR)	ECPR	CCPR	Survival	Neurologic outcome (good/poor)
Chen⁴	2004–2006 Taiwan	Prospective Single centre IHCA	Yes	Univariate	172 (59/113)	57.4 ± 12.5	60.3 ± 13.3	discharge	CPC (12/345) discharge
Lin⁸ ^b	2004–2006 Taiwan	Prospective Single centre IHCA	Yes	Univariate	118 (55/63)	59.0 ± 11.7	60.6 ± 12.7	28 days	CPC (12/345) discharge
Shin⁹	2003–2009 South Korea	Retrospective Single centre IHCA	Yes	Univariate	406 (85/321)	59.9 ± 15.3	61.6 ± 14.2	in hospital	GOS (1/2345) discharge
Shin¹⁰ ^b	2003–2009 South Korea	Retrospective Single centre IHCA	Yes	Univariate	406 (85/321)	59.9 ± 15.3	61.6 ± 14.2	28 days	GOS (1/2345) 2 year
Maekawa¹¹	2000–2004 Japan	Prospective Single centre OHCA	Yes	Univariate	162 (53/109	54 (47–60)	71 (59–80)	discharge	CPC (12/345) 90 days
Sakamoto¹²	2008–2012 Japan	Prospective Multi-centre OHCA	No	Univariate	454 (260/194)	56.3 ± N/A	58.1 ± N/A	28 days	CPC (12/345) 28 days
Kim¹³ ^c	2006–2013 Korea	Prospective Single centre OHCA	Yes	Univariate	499 (55/444)	53 (41–68)	69 (56–77)	discharge	CPC (12/345) discharge
Chou¹⁴	2006–2010 Taiwan	Retrospective IHCA Single centre	No	Univariate	66 (43/23)	60.5 ± 11.6	69.6 ± 13.3	discharge	—
Siao¹⁵ ^d	2011–2013 Taiwan	Retrospective Single centre IHCA	No	Multivariate	60 (20/40)	54.5 ± 11.9	60.2 ± 11.2	discharge	CPC (12/34) discharge
Blumenstein¹⁷	2009–2013 Germany	Retrospective Single centre IHCA	Yes	Univariate	353 (52/272)	72 (55–77.9)	75.29 (67.4–79.1)	30 days	CPC (12/345) 30 days
Choi¹⁶	2009–2013 South Korea	Retrospective Multi-centre OHCA	Yes	Multivariate	36,547 (320/36,227)	56 (45–68)	67 (54–77)	discharge	CPC (12/345) discharge

Abbreviations: OR, odds ratio; ECPR, extracorporeal cardiopulmonary resuscitation; CCPR, conventional cardiopulmonary resuscitation; IHCA, in-hospital cardiac arrest; OHCA, out-of-hospital cardiac arrest; CPC, Cerebral Performance Category Scale; GOS, Glasgow Outcome Scale; N/A, not available.
^aAge was presented as median (interquartile range) or mean ± standard deviation.
^bNot included in the meta-analysis because of duplicated data sources.
^cNot included in the meta-analysis because the patient data was previously published in the Choi et al.¹⁶ trial.
^dNot included in the meta-analysis because the patient data was not reported separately for OHCA and IHCA patients.

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Table 1 Details of included studies.

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