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Given the number of surgeries/year in Scotland (2009/2010 20,048) [1] the checklist saved:

Death rate after fix: 0.46% Number of deaths after:93

Death rate before fix: 0.46/(1-0.37) = 0.73% Number of deaths before: 147

Number of lives saved per year: 54.

[1] https://academic.oup.com/bja/article/119/2/249/4049141




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