Author Contributions: Dr Joe had full access to all 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: Joe, Baser, Neighbors.
Acquisition of data: Jackson.
Analysis and interpretation of data: Joe, Baser, Breeden, Neighbors, Jackson.
Drafting of the manuscript: Joe, Baser.
Critical revisions of the manuscript for intellectual content: Joe, Baser, Breeden, Neighbors, Jackson.
Statistical Analysis: Joe, Baser.
Obtaining funding: Jackson, Joe.
Administrative, technical, or material support: Joe, Jackson.
Study supervision: Joe, Jackson.
Financial Disclosures: None reported.
Funding/Support: The NSAL is supported by the National Institute of Mental Health (U01-MH57716) with supplemental support from the Office of Behavioral and Social Science Research and the National Institute on Drug Abuse at the National Institutes of Health and the University of Michigan. Dr Joe was supported by grant K01-MH65499 from the National Institute of Mental Health. Dr Neighbors was supported by the Health Policy Scholars Award from the Robert Wood Johnson Foundation.
Role of the Sponsors: None of the sponsoring organizations had any involvement in the design and conduct of study; in the collection, management, analysis, or interpretation of data; or preparation, review, or approval of the manuscript.
Collaborating NSAL Investigators include James S. Jackson, PhD (principal investigator, Institute for Social Research, University of Michigan, Ann Arbor), Harold W. Neighbors, PhD (coprincipal investigator, School of Public Health and Institute for Social Research, University of Michigan, Ann Arbor), Robert J. Taylor, PhD (coprincipal investigator, School of Social Work, University of Michigan, Ann Arbor), Cleopatra H. Caldwell, PhD (University of Michigan, Ann Arbor), Linda M. Chatters, PhD (University of Michigan, Ann Arbor), Randolph Nesse, MD (University of Michigan Medical School, Ann Arbor), and David R. Williams, PhD (Harvard University, Boston, Mass).
Additional Information: The full text of all NSAL instruments can be found at http://www.rcgd.isr.umich.edu/prba/survey.htm.
Acknowledgment: We appreciate the assistance provided in all aspects of the NSAL study by the Program for Research on Black Americans faculty and research staff including Myriam Torres, MS, Jamie Abelson, MSW, MS, Deborah Coral, BA, Nakesha Faison, MS, Jane Rafferty, MA, Phyllis Stillman, BA, and Julie Sweetman, MS. We thank the staff at the Survey Research Center's Survey Research Operations department for their assistance with instrumentation and fieldwork for the NSAL study. We are grateful to Linda Chatters, PhD (School of Social Work, University of Michigan, Ann Arbor), for her helpful comments on an earlier draft. None of the aforementioned individuals in this acknowledgment received compensation for their contributions.