About the Authors

Christopher Millett

To whom correspondence should be addressed. E-mail: c.millett@imperial.ac.uk

Affiliations Wandsworth Primary Care Research Centre, Wandsworth Primary Care Trust, London, United Kingdom , Department of Primary Care and Social Medicine, Imperial College, London, United Kingdom

Jeremy Gray

Affiliation Wandsworth Primary Care Research Centre, Wandsworth Primary Care Trust, London, United Kingdom

Sonia Saxena

Affiliation Department of Primary Care and Social Medicine, Imperial College, London, United Kingdom

Gopalakrishnan Netuveli

Affiliation Department of Primary Care and Social Medicine, Imperial College, London, United Kingdom

Kamlesh Khunti

Affiliation Department of Health Sciences, Leicester General Hospital, University of Leicester, Leicester, United Kingdom

Azeem Majeed

Affiliation Department of Primary Care and Social Medicine, Imperial College, London, United Kingdom

Competing Interests

AM is Associate Director (Primary Care) of the English Diabetes Research Network. KK is codirector of a local English Diabetes Research Network.

Author Contributions

CM, JG, and AM conceived the study. CM and GN performed the statistical analyses. All authors contributed to the data interpretation. CM wrote the first draft of the manuscript and all authors contributed to the revision and approved the final version. CM is the guarantor for the study, had full access to all the data in the study, and had final responsibility for the decision to submit for publication.