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Background: Surgical mortality data are collected routinely in high-income countries, yet virtually no low-or middle-income countries have outcome surveillance in place. The aim was prospectively to collect worldwide mortality data following emergency abdominal surgery, comparing findings across countries with a low, middle or high Human Development Index (HDI).Methods: This was a prospective, multicentre, cohort study. Self-selected hospitals performing emergency surgery submitted prespecified data for consecutive patients from at least one 2-week interval during July to December 2014. Postoperative mortality was analysed by hierarchical multivariable logistic regression.

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Despite prompt GP consultation and out-patient referral, delays in the treatment of CRC now occur after referral to hospital. Patients referred without mention of CRC wait longest. Colonoscopy and double contrast barium enema have not improved tumour staging at treatment.