About the Authors

Brenna M. Henn

Contributed equally to this work with: Brenna M. Henn, Lawrence Hon

bmhenn@stanford.edu (BMH); joanna@23andme.com (JLM)

Affiliations 23andMe, Inc., Mountain View, California, United States of America, Department of Genetics, Stanford University, Stanford, California, United States of America

Lawrence Hon

Contributed equally to this work with: Brenna M. Henn, Lawrence Hon

Affiliation 23andMe, Inc., Mountain View, California, United States of America

J. Michael Macpherson

Affiliation 23andMe, Inc., Mountain View, California, United States of America

Nick Eriksson

Affiliation 23andMe, Inc., Mountain View, California, United States of America

Serge Saxonov

Affiliation 23andMe, Inc., Mountain View, California, United States of America

Itsik Pe'er

Affiliation Department of Computer Science, Columbia University, New York, New York, United States of America

Joanna L. Mountain

bmhenn@stanford.edu (BMH); joanna@23andme.com (JLM)

Affiliation 23andMe, Inc., Mountain View, California, United States of America

Competing Interests

BMH, LH, JMM, NE, SS, and JLM are or were previously employed by 23andMe and own stock options in the company. The research described in this paper is related to a web site feature developed by 23andMe. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials. However, the authors' obligations to protect their customers' privacy (as outlined in our Terms of Service and Privacy Statement) prevent them from making their customers' individual-level data publicly available. Aggregate-level data (for example, in the form of tables that were used for the authors' statistics) can be made available upon request. This research was designed by the 23andMe, Inc. research team and funded by 23andMe, Inc. (www.23andme.com/research). There are no current external funding sources for this study. 23andMe, Inc. non-research staff had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Author Contributions

Conceived and designed the experiments: LH JLM IP BMH. Performed the experiments: LH. Analyzed the data: LH. Contributed reagents/materials/analysis tools: JMM SS NE. Wrote the paper: BMH LH JLM IP.