Interventions
cardiac arrest, PediAppRREST
CARDIAC ARREST
Participants were stratified by hospital location and residency specialty. Among PALS-certified residents, 1 participant was randomly assigned to each team with the role of team leader. Among the remaining PALS- and non-PALS–certified residents, 2 participants were randomly assigned to each team to obtain teams of 3 members, with at least 1 PALS-certified resident for the team leader role. Teams were block randomized to 1 of 3 study groups in a 1:1:1 ratio using a computer-based sequence and sealed envelopes. All the teams conducted the same scenario of pediatric cardiac arrest using a different cognitive aid according to the randomization allocation: the PediAppRREST app (PediAppRREST intervention group); a paper-based cognitive aid, the AHA PALS pocket reference card (PALS control group); or no cognitive aid (null control group). The standard simulation was a 10-minute scenario of nonshockable in-hospital pediatric cardiac arrest