Author Contributions: Dr Dong 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: Dong, Simon, Fulmer, Paveza, Evans.
Acquisition of data: Dong, Evans.
Analysis and interpretation of data: Dong, Simon, Mendes de Leon, Beck, Hebert, Dyer, Evans.
Drafting of the manuscript: Dong, Simon, Mendes de Leon, Beck, Paveza.
Critical revision of the manuscript for important intellectual content: Dong, Simon, Fulmer, Hebert, Dyer, Paveza, Evans.
Statistical analysis: Dong, Mendes de Leon, Beck, Hebert.
Obtained funding: Dong, Evans.
Administrative, technical, or material support: Dong, Dyer, Paveza, Evans.
Study supervision: Simon, Fulmer, Evans.
Financial Disclosures: None reported.
Funding/Support: This work was supported by National Institute on Aging grant R01 AG11101 and by the Paul B. Beeson Career Development Award in Aging (K23 AG030944), and funding from the American Federation for Aging Research, the Starr Foundation, the John A. Hartford Foundation, and the Atlantic Philanthropies. Dr Simon was supported by grant K12 HD 050121 from the National Institute of Child Health and Human Development.
Role of the Sponsor: The funding organizations had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript.
Additional Contributions: We thank Ann Marie Lane, BA, for community development and oversight of project coordination, and Michelle Bos, BA, Holly Hadden, BA, Flavio LaMorticella, BA, and Jennifer Tarpey, BA, for coordination of the study. We also thank George Dombrowski, MS, for data management support. All individuals listed here are affiliated with Rush University Medical Center and they were not compensated financially for their contributions to this article. We are also grateful for the men and women of the social services agencies for their dedication and tireless effort in protecting the vulnerable aging populations.