Key Laboratory of Environmental Medicine Engineering of Ministry of Education;
Department of Epidemiology and Biostatistics;
School of Public Health;
Southeast University;
Nanjing 210009;
China;
Department of Health Policy and Management;
School of Public Health;
Peking University;
Beijing 100191;
China;
All-cause death; Cardiovascular disease; Daily steps; Dose-response; Healthy lifestyle; Primary prevention;