Author Contributions: Dr King had full access
to all of the data in the study and takes responsibility for the integrity
of the data and the accuracy of the data analysis.
Study concept and design: King, Bower, Sibbald,
Nazareth, Lai, Lampe.
Acquisition of data: King, Nazareth, Chandler,
Analysis and interpretation of data: King,
Bower, Sibbald, Nazareth, Chandler, Lampe, Morou.
Drafting of the manuscript: King, Bower, Nazareth,
Lai, Lampe, Morou.
Critical revision of the manuscript for important
intellectual content: King, Bower, Chandler, Sibbald, Nazareth, Lampe.
Statistical analysis: Nazareth, Lampe.
Obtained funding: King, Bower, Sibbald, Nazareth,
Administrative, technical, or material support:
Study supervision: King, Nazareth, Lai, Lampe.
Financial Disclosures: None reported.
Funding/Support: This study was funded by a
grant (98/26/03) from the National Health Service Health Technology Appraisal
Role of the Sponsor: The funding organization
had no role in the design and conduct of the study; collection, management,
analysis, and interpretation of the data; or preparation, review, or approval
of the manuscript.
Disclaimer: The views expressed are those of
the authors and not necessarily those of the NHS Executive or Department of
Health of the United Kingdom.