About the Authors

Gary G Bennett

To whom correspondence should be addressed. E-mail: gary_bennett@dfci.harvard.edu

Affiliations Department of Society, Human Development and Health, Harvard School of Public Health, Boston, Massachusetts, United States of America , Center for Community-Based Research, Dana-Farber Cancer Institute, Boston, Massachusetts, United States of America

Lorna H McNeill

Affiliation Department of Health Disparities Research, University of Texas M. D. Anderson Cancer Center, Houston, Texas, United States of America

Kathleen Y Wolin

Affiliation Department of Surgery, Washington University School of Medicine, St Louis, Missouri, United States of America

Dustin T Duncan

Affiliations Department of Society, Human Development and Health, Harvard School of Public Health, Boston, Massachusetts, United States of America , Center for Community-Based Research, Dana-Farber Cancer Institute, Boston, Massachusetts, United States of America

Elaine Puleo

Affiliation Department of Biostatistics and Epidemiology, University of Massachusetts, Amherst, Massachusetts, United States of America

Karen M Emmons

Affiliations Department of Society, Human Development and Health, Harvard School of Public Health, Boston, Massachusetts, United States of America , Center for Community-Based Research, Dana-Farber Cancer Institute, Boston, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

GGB, EP, LHM, and KME designed the study. GGB, KYW, and EP analyzed the data. DTD conducted the background research on the association between neighborhood safety and physical activity and suggested how the data should be analyzed. EP was the lead statistician on the project. KME was the principal investigator of the study. GGB supervised all scientific aspects of the work, including the development of this paper by Dr. Bennett. All authors contributed to writing the paper.