ROSSINI trial: unit costs at 2011 value.

*The costs for a day in Intensive Therapy Unit (ITU) and a day in High Dependency Unit (HDU) were not available in NHS Reference Costs 2010/2011. The last available document where they were given explicitly was the 2007/2008 edition. For the purpose of this analysis, the 2007/2008 unit costs were updated to their 2011 value using the appropriate Hospital and community health services (HCHS) pay and price inflation (Curtis 2011).