About the Authors
- Shengfeng Wang
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Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- Yong Chen
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Affiliation Chinese PLA Institute for Disease Control and Prevention, Academy of Military Medical Sciences, Beijing, China
- Miao Liu
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Affiliation Institute of Geriatrics, Chinese PLA General Hospital, Beijing, China
- Zhiheng Hong
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Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- Dianjianyi Sun
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Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- Yukun Du
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Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- Meng Su
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Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- Canqing Yu
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Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- Qingmin Liu
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Affiliation Division for Chronic and Non-communicable Disease Control and Prevention, Hangzhou Center for Disease Control and Prevention, Hangzhou, China
- Yanjun Ren
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Affiliation Division for Chronic and Non-communicable Disease Control and Prevention, Hangzhou Center for Disease Control and Prevention, Hangzhou, China
- Jun Lv
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* E-mail: lvjun@bjmu.edu.cn (JL); lmlee@vip.163.com (LML)
Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- Liming Li
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* E-mail: lvjun@bjmu.edu.cn (JL); lmlee@vip.163.com (LML)
Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: SFW YC ML ZHH. Performed the experiments: SFW YC ML ZHH DJYS YKD MS. Analyzed the data: SFW YC ML ZHH. Contributed reagents/materials/analysis tools: CQY QML YJR JL LML. Wrote the paper: SFW. QML and YJR coordinated with the supermarket. CQY, JL and LML provided statistical expertise and critical corrections to the manuscript, and were involved in manuscript revisions.