For the purposes of tracking and measurement, it is important that each trust has an agreed baseline measurement of CAUTI for their organisation. This measurement system needs to be consistent and available throughout any implementation and measurement period. Provided this is the case then a reduction in CAUTI should be evident. In this pilot study, the agreed and available measurement of CAUTI was the NHS Safety Thermometer data. Other CAUTI definitions and data sets should also work.u003cbr/u003eThere is currently no nationally accepted CAUTI definition.u003cbr/u003eTrusts are no longer required to collect and submit data for the Safety Thermometer, so an agreed measurement system for monitoring CAUTI numbers will be agreed with trusts wishing to take action.