1 School of Nursing, Anhui Medical University, 15 Feicui Road, Hefei, Anhui, People's Republic of China.
2 Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China.
3 Anhui Province Key Laboratory of Major Autoimmune Diseases, 81 Meishan Road, Hefei, Anhui, People's Republic of China.
4 Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China. panhaifeng@ahmu.edu.cn.
5 Anhui Province Key Laboratory of Major Autoimmune Diseases, 81 Meishan Road, Hefei, Anhui, People's Republic of China. panhaifeng@ahmu.edu.cn.