Currently the best computations of readmission rates are those released by the National Centre for Health Outcomes Development (NCHOD). They publish their data on a website at www.nchod.nhs.uk. Presently there are three years data from 2001-02 to 2003-04 at primary care trust (PCT) level. There are plans to produce an eight-year series up to 2005-06 at PCT and trust level. Other analyses could be produced only at disproportionate cost.