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Table 1 Overall risk of death ratios compared to 2007/08.

From: Use of an electronic early warning score and mortality for patients admitted out of hours to a large teaching hospital

Year ROD 95% CI
2008/09 1.01 0.73 to 1.5
2009/10 1.03 0.74 to 1.5
2010/11 0.46* 0.33 to 0.7
2011/12 0.31* 0.22 to 0.4
2012/13 0.27* 0.2 to 0.39
2013/14 0.26* 0.2 to 0.37
  1. *P < 0.001.