Magnitude and Temporal Trend of the Chronic Myeloid Leukemia: On the Basis of the Global Burden of Disease Study 2019

PURPOSE To map the magnitudes and temporal trends of chronic myeloid leukemia (CML) along with its attributable risk factors, providing the essential foundation for targeted public policies at the national, regional, and global levels. MATERIALS AND METHODS We retrieved annual data on CML burden in 204 countries and regions from the Global Burden of Disease Study 2019 in 1990-2019. The estimated annual percentage change (EAPC) was calculated to quantify the temporal trends of CML burden by region, sex, and age group. RESULTS Globally, the age-standardized incidence rate of CML declined weakly over the past few years (EAPC: -1.04), but the number of incident cases increased by 54.1% to 65.8 x 10(3) in 2019. By contrast, a dramatic drop in death and disability-adjusted life years (DALYs) rate (EAPCs: -2.55; -2.69) led to a reduction in deaths and DALYs, especially in high-income regions. In 2019, the highest age-standardized death rate was observed in Ethiopia (1.89 per 100,000). The death rate of CML was pronounced among the population age above 70 years. DALYs of CML worldwide were primarily attributable to smoking (12.2%), high body mass index (5.0%), occupational exposure to benzene (0.9%), and occupational exposure to formaldehyde (0.3%) in 2019. CONCLUSION Although the mortality rate of CML has decreased significantly, the management of patients with CML cannot be neglected, especially in elders and developing regions. (C) 2021 by American Society of Clinical Oncology