About the Authors

Minxue Shen

Affiliations Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China, Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China, OMNI Research Group, Department of Obstetrics and Gynecology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada, Ottawa Hospital Research Institute, Clinical Epidemiology Program, Ottawa, Ontario, Canada

Graeme N. Smith

Affiliation Department of Obstetrics and Gynecology, Queen’s University, Kingston, Ontario, Canada

Marc Rodger

Affiliations Ottawa Hospital Research Institute, Clinical Epidemiology Program, Ottawa, Ontario, Canada, School of Epidemiology, Public Health, and Preventive Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada, Department of Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada

Ruth Rennicks White

Affiliations OMNI Research Group, Department of Obstetrics and Gynecology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada, Ottawa Hospital Research Institute, Clinical Epidemiology Program, Ottawa, Ontario, Canada

Mark C. Walker

Affiliations OMNI Research Group, Department of Obstetrics and Gynecology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada, Ottawa Hospital Research Institute, Clinical Epidemiology Program, Ottawa, Ontario, Canada

Shi Wu Wen

swwen@ohri.ca

Affiliations Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, Hunan, China, OMNI Research Group, Department of Obstetrics and Gynecology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada, Ottawa Hospital Research Institute, Clinical Epidemiology Program, Ottawa, Ontario, Canada, School of Epidemiology, Public Health, and Preventive Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: SWW. Data curation: MS. Formal analysis: MS. Funding acquisition: SWW. Investigation: GNS MR RRW MCW SWW. Methodology: SWW. Project administration: RRW. Resources: SWW MCW. Software: MS. Supervision: SWW. Validation: SWW MCW. Visualization: MS. Writing – original draft: MS. Writing – review & editing: GNS MCW SWW.