About the Authors

Ellen A. Nohr

ean@soci.au.dk

Affiliation Department of Epidemiology, University of Aarhus, Aarhus, Denmark

Nicholas J. Timpson

Affiliation Department of Social Medicine, University of Bristol, Bristol, United Kingdom

Camilla S. Andersen

Affiliation The Institute of Preventive Medicine, Copenhagen University Hospital, Copenhagen, Denmark

George Davey Smith

Affiliation Department of Social Medicine, University of Bristol, Bristol, United Kingdom

Jørn Olsen

Affiliation Department of Epidemiology, School of Public Health, University of California Los Angeles, Los Angeles, California, United States of America

Thorkild I. A. Sørensen

Affiliation The Institute of Preventive Medicine, Copenhagen University Hospital, Copenhagen, Denmark

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EAN NJT CSA GDS TIAS. Analyzed the data: EAN. Contributed reagents/materials/analysis tools: JO TIAS. Wrote the paper: EAN NJT CSA GDS JO TIAS.