Author Contributions: Dr Pham 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: Pham, Hargraves,
Acquisition of data: Pham, Bach.
Analysis and interpretation of data: Pham,
Schrag, Hargraves, Bach.
Drafting of the manuscript: Pham, Schrag,
Critical revision of the manuscript for important
intellectual content: Pham, Schrag, Hargraves, Bach.
Statistical analysis: Pham, Bach.
Obtained funding: Pham, Bach.
Administrative, technical, or material support:
Pham, Schrag, Hargraves,
Study supervision: Bach.
Financial Disclosures: None reported.
Funding/Support: This study was supported by
grants from the Robert Wood Johnson Foundation (to Drs Pham and Hargraves
and for research conducted at the Center for Studying Health System Change),
the National Cancer Institute (grant RO1CA090226 to Dr Bach), and the American
Cancer Society (grant RSGT-04-012-01-CPPB to Dr Schrag).
Role of the Sponsor: The funding sources were
not involved in the design, data collection, analysis, or manuscript preparation
for this study.
Acknowledgment: We wish to thank Beny Wu, MS,
of Social and Scientific Systems for invaluable aid in data analysis.