Study concept and design: Teodorescu, Young, Peppard.
Acquisition, analysis, or interpretation of data: Teodorescu, Barnet, Hagen, Palta, Young, Peppard.
Drafting of the manuscript: Teodorescu, Barnet, Hagen, Peppard.
Critical revision of the manuscript for important intellectual content: Teodorescu, Hagen, Palta, Young, Peppard.
Statistical analysis: Barnet, Hagen, Palta, Peppard.
Obtained funding: Young, Peppard.
Administrative, technical, or material support: Hagen, Peppard.
Study supervision: Teodorescu, Peppard.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: This work was funded by the National Heart, Lung, and Blood Institute (R01HL62252), National Institute on Aging (R01AG036838), and the National Center for Research Resources (1UL1RR025011) at the National Institutes of Health (NIH); additional resources were from the William S. Middleton Memorial VA Hospital, Madison. This work was performed at the University of Wisconsin and William S. Middleton Memorial VA Hospital, Madison.
Role of the Funder/Sponsor: The funders had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Disclaimer: The content of this article is solely the responsibility of the authors and does not represent the views of the Department of Veterans Affairs, NIH, or the United States government.
Additional Contributions: We thank K. Mae Hla, MD (Wisconsin Sleep Cohort medical director), Jerome Dempsey, PhD (study design), Steven Weber, PhD (participant communications, technical consulting), and Steven R. Barczi, MD (participant medical evaluations), for their valuable assistance. We also thank Tricia Denman, Nicole Salzieder, BS, Kathy Stanback, BA, Mary Sundstrom, BS (data collection), Laurel Finn, MS (data quality control and analysis), Kathryn Pluff, BS (participant recruitment, data collection, laboratory management), Amanda Rasmuson, MS (laboratory management, data collection), and Robin Stubbs, BS (database programming and data security). These contributors are affiliated with the University of Wisconsin-Madison and they were funded with NIH grants.
Correction: This article was corrected online May 21, 2015, for revisions to Table 4, which contained incorrect values for the mean (95% CI) of the following 2 rows: apnea-hypopnea index at the end of the 8-year interval and change in body mass index over 8-year interval.