1 Department of Epidemiology, School of Public Health, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 44 Wen Hua Xi Road, Jinan, 250012, Shandong, China.
2 Department of Biostatistics, School of Public Health, and The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, 130 Dong'an, Shanghai, 200032, China.
3 Department of Nutrition and Food Hygiene, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
4 Department of Clinical Medicine-Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.
5 Department of Epidemiology, School of Public Health, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 44 Wen Hua Xi Road, Jinan, 250012, Shandong, China. xibo2007@126.com.
6 Department of Biostatistics, School of Public Health, and The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, 130 Dong'an, Shanghai, 200032, China. yu@fudan.edu.cn.
7 Shanghai Institute of Infectious Disease and Biosecurity, Shanghai, China. yu@fudan.edu.cn.