Risk factors for postanesthetic emergence delirium in adults: A systematic review and meta-analysis

Review question / Objective: Patientor population: patients with emergence delirium; Exposure: anaesthesia and surgery; Control: patients with no emergence delirium; Outcome: risk factors; Study design: meta-analysis. Eligibility criteria: To ensure the quality of this meta-analysis, inclusion criteria was decided before we carried out the search. These criteria were: (a) Original researches that carried out in observational studies. (b)Adult patients who were extubated and recovered at PACU, operation room, or intensive care unit (ICU) after surgeries and anesthesia (including general and neuraxial anesthesia, peripheral nerve blocks and sedation). (c) Risk factors for delirium must be assessed with odds ratio (OR) with 95% confidence interval (CI). Researches must present the results of multivariate regression to be considered eligible for inclusion, since multivariate analysis results shall be used to identify variables eligible for meta-analysis. (d) Full-text available literatures.