Effectiveness of a national quality improvement programme to improve survival after emergency abdominal surgery (EPOCH): a stepped-wedge cluster randomised trial. Lancet 2019; 393: 2213-2221.
Published: 2nd August 2019
Authors: Peden CJ, Stephens T, Martin G, Kahan BC, Thomson A, Rivett K et al.
Over 15,000 patients were included in this study done in 93 NHS hospitals. The primary outcome was 90-day mortality, which was 16 per cent in both groups: hazard ratio 1.11, 95 per cent confidence interval 0.96 to 1.28.Pubmed Link
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