affiliation not provided to SSRN, Binzhou Medical University, Binzhou Medical University, Binzhou Medical University, Binzhou Medical University, Peking University, affiliation not provided to SSRN, Monash University, Binzhou Medical University, Monash University - Department of Epidemiology and Preventive Medicine, Binzhou Medical University and Monash University - Department of Epidemiology and Preventive Medicine