Fig 1.
Flow diagram of included studies.
From: Moher D, Liberati A, Tetzlaff J, Altman DG, The PRISMA Group (2009). Preferred Reporting Iterns for Systematic Reviews and Meta-Analyses: The PRISMA Statement. PLoS Med 6(6): e1000097. doi:10.1371/journal.pmed1000097. For more information, visit http://www.prisma-statement.org.
Table 1.
The characteristics and outcomes of included studies.
Table 2.
Risk of bias for included studies.
Table 3.
Quality assessment using Newcastle-Ottawa Scale.
Table 4.
Summary of interventions for the quality of bystander cardiopulmonary resuscitation in the included studies.
Table 5.
The comparison between video-assisted and telephone DA-CPR for different components of CPR quality in 6 studies.