About the Authors

Junhong Leng

Affiliations Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China, Tianjin Women and Children’s Health Centre, Tianjin, China

Ping Shao

Affiliation Tianjin Women and Children’s Health Centre, Tianjin, China

Cuiping Zhang

Affiliation Tianjin Women and Children’s Health Centre, Tianjin, China

Huiguang Tian

Affiliation Tianjin Women and Children’s Health Centre, Tianjin, China

Fuxia Zhang

Affiliation Tianjin Women and Children’s Health Centre, Tianjin, China

Shuang Zhang

Affiliation Tianjin Women and Children’s Health Centre, Tianjin, China

Ling Dong

Affiliation Tianjin Women and Children’s Health Centre, Tianjin, China

Lili Li

Affiliation Tianjin Women and Children’s Health Centre, Tianjin, China

Zhijie Yu

Affiliation Population Cancer Research Program and Department of Pediatrics, Dalhousie University, Halifax, Canada

Juliana C. N. Chan

Affiliation Department of Medicine and Therapeutics, Hong Kong Institute of Diabetes and Obesity, International Diabetes Federation Centre of Education, The Chinese University of Hong Kong-Prince of Wales Hospital-International Diabetes Federation Centre of Education, Hong Kong SAR, China

Gang Hu

Affiliation Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States of America

Xilin Yang

yxl@hotmail.com

Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XLY GH ZJY JCC JHL. Performed the experiments: JHL PS CPZ HGT FXZ SZ LD LLL. Analyzed the data: JHL. Wrote the paper: JHL XLY GH ZJY JCC.