COMMISSIONED ANALYSIS OF SURGICAL PERFORMANCE USING ROUTINE DATA: THE BRISTOL INQUIRY. Nicky Best (Imperial College, London) Royal Statistical Society Avon Local Group Meeting (joint with the Department of Social Medicine) Thursday the 16th of May 4:00pm Room G6, Canynge Hall, Dept. of Social Medicine, University of Bristol. Abstract: The speaker and co-authors were commissioned by the public inquiry into paediatric cardiac surgery at the Bristol Royal Infirmary to carry out a statistical comparison of surgical outcomes between centres. This talk will discuss the analytic strategy used and highlight issues relating to the inherent inconsistencies and mediocre quality of the various data sources and the role of statisticians in this Inquiry and their contribution to the final Inquiry Report. For more details, see http://www.stats.bris.ac.uk/~masb/RSSLocalGroup/