Date	Event	Description
24 July 2018	New search has been performed	This is an update of a review last published in 2011 (Sloan 2011). The review author team updated the protocol extensively, and differences are highlighted in the ‘Differences between protocol and review' section.
24 July 2018	New citation required and conclusions have changed	We included 13 eligible studies that enrolled 2426 participants and compared 21 interventions. Using random‐effects models we determined pooled risk ratio (RR) and 95% confidence interval (CI) for dichotomous outcomes and mean differences (MD) and 95% CI for continuous outcomes. We performed a network meta‐analysis using multivariate meta‐regression. We modelled treatment differences (RR and 95% CI) and determined treatment rankings for two‐week and 10‐week mortality outcomes using surface under the cumulative ranking curve (SUCRA). We assessed the certainty of the evidence using the GRADE approach.