Clinical benefits of corticosteroid administration during adult cardiopulmonary resuscitation: A systemic review and meta-analysis

Table 2 Cochrane risk of bias assessment tool for randomized trials and the Good Research for Comparative Effectiveness checklist for nonrandomized trials

Randomized-controlled trials
Ref.	Randomization		Deviation from the intended interventions			Missing outcome data			Measurement of outcome			Selection of the reported result			Overall
Bolvardi et al[17], 2016	Low		High			Some concerns			Low			Some concerns			High
Mentzelopoulos et al[9], 2009	Low		Low			Low			Low			Low			Low
Mentzelopoulos et al[7], 2013	Low		Low			Low			Low			Low			Low
Paris et al[10], 1984	High		Low			Some concerns			Low			Some concerns			High
Non-randomized-controlled trials
Ref.	Adequate treatment	Adequate outcomes		Objective outcomes	Valid outcomes		Similar outcomes	Covariates recorded		New initiators	Concurrent comparators		Covariates accounted for	Immortal time bias		Sensitivity analysis
	D1	D2		D3	D4		D5	D6		M1	M2		M3	M4		M5
Tsai et al[11], 2007	+	+		+	+		+	+		+	+		+	+		+
Tsai et al[18], 2016	+	+		+	+		+	+		+	+		+	+		+