Study concept and design: Jacobs, Epel, Rasgon.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Jacobs.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Jacobs.
Obtained funding: Jacobs, Rasgon.
Administrative, technical, or material support: Epel, Lin, Rasgon.
Study supervision: Epel, Blackburn, Rasgon.
Conflict of Interest Disclosures: Drs Epel, Lin, and Blackburn were cofounders of Telome Health Inc, a telomere length measurement company. No other disclosures were reported.
Funding/Support: This study was funded by grant R01 AG22008 from the National Institute on Aging (Dr Rasgon) and grant M01 RR-00070 from the National Center for Research Resources, National Institutes of Health. This study also received support from the Robert Wood Johnson Foundation Health and Society Scholars program (Dr Jacobs).
Role of the Sponsor: The funding agencies had a 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, but not the decision to submit the manuscript for publication.
Additional Contributions: We thank Allan Reiss, MD (Stanford University), for overseeing brain imaging acquisition and volumetric analyses; Ryan Kelley, BS (Stanford University), for help with volumetric analyses; Joachim Hallmayer, MD (Stanford University), for overseeing apolipoprotein E genotyping; and Heather Kenna, MA (Stanford University), and Candyce Kroenke, MPH, ScD (Kaiser Permanente), for managerial and analytic support. They did not receive compensation from a funding sponsor.