TABLE 2

Methodologic Quality Assessment

StudyDesignSelectionComparability of Cases and Controls Based on Design or AnalysisExposure
Is the Case Definition Adequate?Are the Cases Representative?Is the Control Definition Adequate?Was the Control Selection Appropriate?Ascertainment of ExposureSame Method of Ascertainment for Cases and ControlsNonresponse Rate
Bernard et al,15 2013Retrospective cohortYes, based on medical recordsYes, consecutive patientsPatients admitted to the same PICU who required readmission >48 h laterHospital controlsYes, per designYes, based on secure recordsYes0
Czaja et al,12 2013Retrospective cohortYes, based on secure database informationYes, consecutive patientsPatients admitted to the same PICUs who required readmission >48 h laterHospital controlsYes, per designYes, based on secure recordsYes0
De Kroon et al,16 2013Case-controlYes, based on secure medical recordsYesYes, no history of PICU readmissionPatients admitted to the same PICU who did not require readmissionYes, per designYes, based on secure medical recordsYes0
Edwards et al,13 2013Retrospective cohortYes, based on secure database informationYesYes, no history of PICU readmissionPatients admitted to the PICUs (same database) who did not require readmissionYes, per designYes, based on secure recordsYes0
Kaur et al,14 2018Case-controlYes, based on secure database informationYesYes, no history of PICU readmissionControls were selected randomly from all patients who did not require readmissionYes, per designYes, based on secure medical recordsYes0
Khan et al,17 2014Retrospective cohortYes, based on secure medical recordsYesYes, no history of PICU readmissionPatients discharge from the PICU to the step-down unit who did not require readmission to the PICUYes, per designYes, based on secure medical recordsYes0
Kotsakis et al,18 2016Case-controlYes, source of information unclearYesYes, no history of PICU readmissionPatients admitted to the same PICU who did not require readmissionYes, per designYes, based on secure medical recordsYes0
Linton et al,19 2009Case-controlYes, based on secure medical recordsYesYes, no history of PICU readmissionPatients admitted to the same PICU who did not require readmissionYes, per designYes, based on secure medical recordsYes0
Mandell et al,20 2015Case-controlYes, based on secure medical recordsYesYes, no history of PICU readmissionPatients admitted to the same PICU who did not require readmission after being discharge to the pediatric wardYes, per designYes, based on secure medical recordsYes0
Odetola et al,21 2007Case-controlYes, based on secure database informationYesYes, no history of PICU readmissionPatients admitted to the same PICU who did not require readmissionYes, per designYes, based on secure medical recordsYes0
Wagh et al,22 2013Case-controlYes, based on secure database informationYesYes, patients discharged from the same PICU at different timeYes, patients from the same PICUYes, per designYes, based on secure recordsYes0