Author Contributions: Dr Miech had full access to all of the data in the study and takes full responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Miech, Kumanyika, Link, Phelan, Chang.
Acquisition of data: Miech.
Analysis and interpretation of data: Miech, Kumanyika, Stettler, Link, Phelan, Chang.
Drafting of the manuscript: Miech, Kumanyika, Stettler, Chang.
Critical revision of the manuscript for important intellectual content: Miech, Kumanyika, Stettler, Link, Phelan, Chang.
Statistical analysis: Miech, Stettler, Chang.
Administrative, technical, or material support: Miech.
Financial Disclosures: None reported.
Funding/Support: Dr Miech is supported in part by grant 1K01DA015089 from the National Institutes of Health (NIH). Dr Kumanyika is supported in part by project EXPORT grant P60 MD000209 from the National Center for Minority Health and Health Disparities at the NIH. Dr Stettler is supported in part by grant 5K23RR016073 from the NIH. Drs Link and Phelan have been supported in part by a Robert Wood Johnson Foundation Health Policy Investigator Award. Dr Phelan is also supported by grant K02MH65330 from the NIH. Dr Chang is supported in part by grant K12HD043459 from the NIH.
Role of the Sponsors: The funding organizations listed above were not involved in the design or conduct of the study, data management, analysis, or interpretation of the data, or in the preparation, review, or approval of the manuscript.