[1]Institute of Epidemiology and Statistics School of Public Health Lanzhou University Lanzhou Gansu 730000 China;
[2]Department of Epidemiology School of Public Health Brown University Providence RI 02912 USA;
[3]Center of Medical Laboratory Lanzhou University Lanzhou Gansu 730000 China;
[4]Workers'''' Hospital of Jinchuan Group Co “Ltd” Jinchang Gansu 737100 China;
Metals; Alcohol; Type 2 diabetes; Prediabetes; Interaction;