About the Authors

Jennifer A. Schrack

jschrack@jhsph.edu

Affiliations Longitudinal Studies Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, United States of America, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America, Center on Aging and Health, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America

Vadim Zipunnikov

Affiliation Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Jeff Goldsmith

Affiliation Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Karen Bandeen-Roche

Affiliations Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America, Center on Aging and Health, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America

Ciprian M. Crainiceanu

Affiliation Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Luigi Ferrucci

Affiliation Longitudinal Studies Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JS LF. Performed the experiments: JS VZ JG. Analyzed the data: JS VZ JG KBR CC. Contributed reagents/materials/analysis tools: JS VZ JG CC LF KBR. Wrote the paper: JS JG VZ CC LF.