Author Contributions: The authors had full
access to all of the data in the study and take responsibility for the integrity
of the data and the accuracy of the data analyses.
Study concept and design: Bradley, Herrin,
Wang,McNamara, Webster, Blaney, Krumholz.
Acquisition of data: Wang, Blaney, Peterson.
Analysis and interpretation of data: Bradley,
Herrin, Wang, Magid, Canto, Pollack.
Drafting of the manuscript: Bradley, Herrin.
Critical revision of the manuscript for important
intellectual content: Bradley, Wang, McNamara,Webster, Magid, Blaney,
Peterson, Canto, Pollack,Krumholz.
Statistical analysis: Bradley, Herrin, Wang,Krumholz.
Administrative, technical, or material support:Webster,
Blaney, Canto, Pollack.
Funding/Support: This study was supported by
National Heart, Lung, and Blood Institute (NHLBI) grant R01HS10407-01. Dr
Bradley is supported by the Patrick & Catherine Weldon Donaghue Medical
Research Foundation (grant 02-102) and by a grant from the Claude D. Pepper
Older Americans Independence Center at Yale University (P30AG21342).
Role of the Sponsors: Neither the NHLBI nor
the Patrick & Catherine Weldon Donaghue Medical Research Foundation had
any involvement in the design or conduct of the study; data management or
analysis; or manuscript preparation, review, or authorization for submission.
Genentech Inc, South San Francisco, Calif, provided access to the data without