Dexmedetomidine in prevention and treatment of postoperative and intensive care unit delirium: a systematic review and meta-analysis

Annals of Intensive Care

Table 2 Risk of bias assessment of included RCTs

^aPatient blinded
^bBlocked randomization in unblinded trial
^cPatients with delayed recovery were excluded
^dStudy reported as double blind; it is likely that patients and personnel were blinded, but this is unclear for the outcome assessor
^eStudy reported as double blind, but blinding of patients is not explicitly mentioned
^fNo flow chart provided; unclear if more patients were originally included