About the Authors

Xiaoming Sun

‡ These authors contributed to the work equally and should be regarded as co-first authors.

Affiliations School of Public Health, Public Health Security Key Laboratory of Ministry of Education, Fudan University, Shanghai, China, Pudong Institute for Health Development, Shanghai, China, Health and Family Planning Commission of Pudong new district, Shanghai, China

Yanting Li

‡ These authors contributed to the work equally and should be regarded as co-first authors.

Affiliations School of Public Health, Public Health Security Key Laboratory of Ministry of Education, Fudan University, Shanghai, China, Pudong Institute for Health Development, Shanghai, China

Shanshan Liu

Affiliation Pudong Institute for Health Development, Shanghai, China

Jiquan Lou

Affiliation Pudong Institute for Health Development, Shanghai, China

Ye Ding

Affiliation Pudong Institute for Health Development, Shanghai, China

Hong Liang

Affiliations Pudong Institute for Health Development, Shanghai, China, School of Social Development and Public Policy, Fudan University, Shanghai, China

Jianjun Gu

Affiliation Health and Family Planning Commission of Pudong new district, Shanghai, China

Yuan Jing

Affiliation Pudong Institute for Health Development, Shanghai, China

Hua Fu

Affiliation School of Public Health, Public Health Security Key Laboratory of Ministry of Education, Fudan University, Shanghai, China

Yimin Zhang

zym_03730@sina.com

Affiliations Pudong Institute for Health Development, Shanghai, China, School of Social Development and Public Policy, Fudan University, Shanghai, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XMS YMZ YTL. Performed the experiments: XMS YMZ YTL. Analyzed the data: YMZ YTL SSL YD. Contributed reagents/materials/analysis tools: XMS YMZ YTL. Wrote the paper: YMZ YTL SSL YD. Participated in the design of this study: JQL YD HL JJG YJ. Reviewed the manuscript and involved in critical revision: HF.