25-hydroxyvitamin D3 mediates the associations between urinary heavy metals and non-melanoma skin cancer: Insights from a population-based study

Supplementary Material Article type: Original article Title: 25-hydroxyvitamin D3 mediates the associations between urinary heavy metals and non-melanoma skin cancer: Insights from a population-based study Kexun Zhang, MD1, Ke Zhang, MS2, Hua Wang, MD1, Feng Hong, PhD3*, Wei Zhang, MD, PhD2* 1 Department of Infectious Disease Control, Kunshan Center for Disease Control and Prevention, Kunshan, Jiangsu, China. 2 Department of Dermatology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China. 3 School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guizhou, China. *Corresponding author: Feng Hong, PhD Wei Zhang, MD, PhD No. 28 Guiyi Street, Guiyang, Guizhou, 550001, China Email: [e-mail], [e-mail] Supplementary figures: 2 (Figure S1, Figure S2) Supplementary tables: 3 (Table S1, Table S2, Table S3)