Submitted for Publication: August 29, 2012; final revision received April 25, 2013; accepted June 6, 2013.
Published Online: November 28, 2013. doi:10.1001/jamaophthalmol.2013.5506.
Study concept and design: Schaumberg, Semba, Hageman.
Acquisition of data: Schaumberg, Chasman.
Analysis and interpretation of data: Schaumberg, Rose, DeAngelis, Hageman, Chasman.
Drafting of the manuscript: Schaumberg.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Schaumberg, Rose, Chasman.
Obtained funding: Schaumberg, Hageman.
Administrative, technical, or material support: Schaumberg, DeAngelis, Semba, Hageman.
Study supervision: Schaumberg, Chasman.
Conflict of Interest Disclosures: None reported.
Funding/Support: This work was supported by National Institutes of Health grants EY017362, EY013834, EY009611, EY014458, CA87969, CA49449, HL35464, CA34944, CA40360, HL26490, HL34595, CA47988, HL43851, and HL46959.
Role of the Sponsor: The National Institutes of Health had no role in the design and conduct of the study; collection, management, analysis, or interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.