Epidemiology: mortallity 2.51/105 Area city >the countryside China< Singapore< Japan<USA <united Kingdom <Sweden(7.5-9/105) In order of the mortality of malignant tumors in- 14y, leukemia is most high in 15-44y, leukemia is third high(<stomach Ca< liver Ca) in all person, leukemia is sixth or eighth high 2021/1/21 xie Yi, Hua Shan Hospital 16
2021/1/21 xie Yi,Hua Shan Hospital 16 Epidemiology: mortality 2.51/105 Area city > the countryside China<Singapore<Japan<USA<united Kingdom <Sweden(7.5～9/105 ) In order of the mortality of malignant tumors in1～14y，leukemia is most high in15～44y，leukemia is third high(<stomach Ca< liver Ca) in all person, leukemia is sixth or eighth high
Etiology radiation 1、 atom bomb(长崎)1Km15km2km 100×22×2.6 2、 high dose X radiation、32 P therapy 2021/1/21 xie Yi, Hua Shan Hospital 17
2021/1/21 xie Yi,Hua Shan Hospital 17 Etiology radiation 1、atom bomb （长 崎）1Km 1.5km 2km × 100 ×22 × 2.6 2、high dose X radiation、 32P therapy
Etiology chemicals benzene Therapy-related leukemia 47/440000 2021/1/21 xie Yi, Hua Shan Hospital 18
2021/1/21 xie Yi,Hua Shan Hospital 18 Etiology chemicals benzene Therapy-related leukemia 47/440000
Etiology virus ATV,1981, Japan(鹿儿岛) electric microscope: virus C The serum antibody titer of atlv decrease with the distance from鹿儿岛 2021/1/21 xie Yi, Hua Shan Hospital 19
2021/1/21 xie Yi,Hua Shan Hospital 19 virus ATLV ，1981，Japan(鹿儿岛) electric microscope：virus C The serum antibody titer of ATLV decrease with the distance from 鹿儿岛 Etiology
Etiology Genetics twin(same egg) 0.2~0.25 sibling 10/105 Down's syndrome(21+) 40-60/105 Fanconi anemia 4/66 2021/1/21 xie Yi, Hua Shan Hospital
2021/1/21 xie Yi,Hua Shan Hospital 20 Genetics twin(same egg ) 0.2~0.25 sibling 10/105 Down‘s syndrome (21+) 40－60/105 Fanconi anemia 4/66 Etiology