About the Authors

Melonie M. Walcott

Affiliation Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

Pauline E. Jolly

jollyp@uab.edu

Affiliation Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

John E. Ehiri

Affiliation Division of Health Promotion Sciences, University of Arizona, Tucson, Arizona, United States of America

Ellen Funkhouser

Affiliation Division of Preventive Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

Mirjam C. Kempf

Affiliation Department of Family/Child Health and Caregiving and Department of Health Behavior, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

Deborah Hickman

Affiliation Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

Maung Aung

Affiliation Epidemiology Unit, Western Regional Health Authority, Jamaica

Kui Zhang

Affiliation Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MW PJ JE EF MK KZ MA. Performed the experiments: MW DH. Analyzed the data: MW EF. Contributed reagents/materials/analysis tools: PJ. Wrote the manuscript: MW PJ EF JE MK KZ MA.