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Antioxidant micronutrient supplements for adult critically ill patients: A bayesian multiple treatment comparisons meta-analysis
Gudivada KK, Kumar A, Sriram K, Baby J, Shariff M, Sampath S, Sivakoti S, Krishna B Abstract
Background & aims: Antioxidant micronutrients (AxMs) have been administered to critically ill adults attempting to counteract the oxidative stress imposed during critical illness. However, results are conflicting and relative effectiveness of AxMs regimens is unknown. We conducted a Bayesian multi-treatment comparison (MTC) meta-analysis to identify the best AxM treatment regimen that will improve clinical outcomes.
Methods: PubMed, EMBASE, Web of Science and Cochrane databases were searched from the inception of databases through August 2020. Randomized controlled trials (RCT) comparing AxMs supplementations with placebo among critically ill adults were included. Two authors assessed trial quality using Cochrane risk of bias tool and assessed certainty of evidence (CoE). A random effect model, non-informative priors Bayesian MTC meta-analysis using gemtc package in R version 3.6.2 was performed. AxMs treatment effect on clinical outcomes (mortality, infection rates, intensive care unit (ICU) and hospital stays and ventilator days) were represented by absolute risk differences (ARD) for dichotomous outcomes and mean differences (MD) for continuous outcomes. Prior to final analysis, we repeated the search through January 2021.