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Research Article

Egocentric Social Network Structure, Health, and Pro-Social Behaviors in a National Panel Study of Americans

  • A. James O’Malley equal contributor mail,

    equal contributor Contributed equally to this work with: A. James O’Malley, Samuel Arbesman

    omalley@hcp.med.harvard.edu (AJO); arbesman@gmail.com (SA)

    Affiliation: Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts, United States of America

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  • Samuel Arbesman equal contributor mail,

    equal contributor Contributed equally to this work with: A. James O’Malley, Samuel Arbesman

    omalley@hcp.med.harvard.edu (AJO); arbesman@gmail.com (SA)

    Affiliation: Ewing Marion Kauffman Foundation, Kansas City, Missouri, United States of America

    X
  • Darby Miller Steiger,

    Affiliation: Gallup Government, Cleveland, Ohio, United States of America

    X
  • James H. Fowler,

    Affiliation: Departments of Medical Genetics and Political Science, University of California San Diego, La Jolla, California, United States of America

    X
  • Nicholas A. Christakis

    Affiliations: Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts, United States of America, Department of Sociology, Harvard University, Cambridge, Massachusetts, United States of America

    X
  • Published: May 15, 2012
  • DOI: 10.1371/journal.pone.0036250

About the Authors

A. James O’Malley, Nicholas A. Christakis
Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts, United States of America
Samuel Arbesman
Ewing Marion Kauffman Foundation, Kansas City, Missouri, United States of America
Darby Miller Steiger
Gallup Government, Cleveland, Ohio, United States of America
James H. Fowler
Departments of Medical Genetics and Political Science, University of California San Diego, La Jolla, California, United States of America
Nicholas A. Christakis
Department of Sociology, Harvard University, Cambridge, Massachusetts, United States of America

Corresponding Authors

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SA NAC JF. Performed the experiments: DMS. Analyzed the data: AJO. Contributed reagents/materials/analysis tools: AJO SA. Wrote the paper: AJO SA NAC.