Submitted for Publication: April 22, 2014; final revision received July 4, 2014; accepted July 9, 2014.
Published Online: September 11, 2014. doi:10.1001/jamaophthalmol.2014.3333.
Study concept and design: All authors.
Acquisition, analysis, or interpretation of data: Hwang, Pu, Y.-J. Chou, P. Chou.
Drafting of the manuscript: Hwang, Pu, Y.-J. Chou, P. Chou.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Hwang, Liu, Pu, Y.-J. Chou, P. Chou.
Obtained funding: Hwang, Pu, Y.-J. Chou, P. Chou.
Administrative, technical, or material support: Hwang, Pu, Y.-J. Chou, P. Chou.
Study supervision: Hwang, Pu, Y.-J. Chou, P. Chou.
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: The National Health Research Institutes supplied data for this study.
Role of the Funder/Sponsor: The funder 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.