Study concept and design: Deppen, Aldrich, Massion, Putnam, Grogan.
Acquisition, analysis, or interpretation of data: Deppen, Blume, Kensinger, Morgan, Massion, Walker, McPheeters, Putnam.
Drafting of the manuscript: Deppen, Blume, Walker.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Deppen, Blume.
Obtained funding: Deppen, Putnam, Grogan.
Administrative, technical, or material support: Deppen, Kensinger, Walker.
Study supervision: Blume, Aldrich, Massion, Walker, McPheeters, Putnam, Grogan.
Conflict of Interest Disclosures: The authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: This work was supported by grant R03HS021554-01 from the Agency for Healthcare Research and Quality (Dr Grogan). This work was also supported by the Department of Veterans Affairs, Veterans Health Administration, Health Services Research and Development Service Career Development award 10-024 (Dr Grogan), grant K07CA172294 from the National Institutes of Health and the National Cancer Institute (Dr Aldrich), Vanderbilt Institute for Clinical and Translational Research grant UL1TR000011 from the National Center for Advancing Translational Sciences at the National Institutes of Health (REDCap database), the lung SPORE grant CA90949 from the National Cancer Institute (Dr Massion), and grant U01CA152662 from the Early Detection Research Network (an initiative of the National Cancer Institute) (Dr Massion).
Role of the Funder/Sponsor: The funders/sponsors 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.
Additional Contributions: We thank Rebecca Jerome, MLS, MPH (research librarian at Vanderbilt University Medical Center), for her uncompensated assistance in the literature review.
Correction: This article was corrected on September 30, 2014, to fix 16% to 16 percentage points for specificity in regions with endemic disease in the abstract and Results section.