Acknowledgements
The following acknowledgements were unfortunately omitted from the article.

We are grateful to Dr Jon Fear from Leeds Health Authority for providing financial support towards the collection and analysis of the data. Novo Nordisk are thanked for providing the Diabetes Patient Record System software. We also appreciate the help and assistance of all local clinicians (Dr P Holland, Dr P Sheridan, Dr MU Afza, Dr S Gilbey, Dr M Mansfield, Dr JK Wales, Professor PJ Grant) and their staff. Diabetes specialist nurses were especially supportive as were secretarial and medical records staff throughout the Trust. We also thank the Office for National Statistics for providing mid-year population estimates. Finally, we thank Roger Parslow for helpful comments on the manuscript.

Membership of the Leeds Diabetes Patient Record System Group (1999-2001)
Patricia McKinney, Carolyn Stephenson, Richard Feltbower (Paediatric Epidemiology Group), Trude Silman (former Community Health Council), Sue Jones, Sue Dodman (Clinical services managers), Linda Clapham, Virginia Nicholson (Diabetes Specialist Nurses), Fiona Campbell (Consultant paediatrician), H Jonathan Bodansky (Consultant Diabetologist), Deborah Quant (patient and IT consultant), Sally Casley, Gillian Richardson (Clinical Effectiveness), Joe Eastman (Health Economist), Judith Knapton (Primary Care), Debra Gill (IT systems)