Association of scabies and psychiatric disorders in childhood: a nationwide population-based study Chien-Yu Lin 1,2 *, Hsin Chi 3 , Shey-Chaing Su 1 , Cheng-Yin Tseng 1 , Po-Huang Liu 1 , Nan-Chang Chiu 3 , Jui-Ming Liu 4 , Ren-Jun Hsu 5 .