Results: (1) Majority CML patients have some classical risk factors, including: elevated WBC > 100 x 109 / l (83.7%); elevated platelet count > 450 x 109 / l (61.7%); high risk Sokal index (> 1.2) (45.4%); (2) 52.5% CML patients were treated with TKI early (within 6 months since diagnosis).