Temporal trends and projections of brain and central nervous system cancers burden in the Western Pacific region (1990-2036): insights from the global burden of disease study 2021.
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BACKGROUND: Brain and central nervous system (CNS) cancers constitute a substantial public health burden in the Western Pacific Region. However, there is a paucity of contemporary, comprehensive epidemiological data on this matter. METHODS: A thorough and methodologically rigorous evaluation of the Global Burden of Disease (GBD) 2021 data was conducted, incorporating key epidemiological indicators such as age-standardized incidence rates (ASIRs), age-standardized mortality rates (ASMRs), and age-standardized disability-adjusted life years (ASDRs). Temporal trends from 1990 to 2021 were assessed using Joinpoint regression, with decomposition analysis identifying factors driving changes in disease burden. Bayesian age-period-cohort models were employed to project future trends through 2036. RESULTS: In 2021, the Western Pacific reported 130,080 incident cases (95 % UI: 103,369-158,977), 80,488 deaths (95 % UI: 62,373-100,431), and 2,640,226 DALYs (95 % UI: 2,054,858-3,300,564) from CNS cancers, reflecting increases of 129.8 %, 81.1 %, and 25 % since 1990, respectively. China accounted for 81.13 % of incidence, 85.61 % of mortality, and 85.13 % of DALYs. ASIRs correlated positively with Socio-Demographic Index and per capita healthcare expenditure. Declines in ASDRs and ASMRs were observed in Australia, New Zealand, China, and South Korea, signaling advancements in disease management. However, ASIRs are projected to rise over the next 15 years, driven by increased healthcare investments and socioeconomic development in low- and middle-income countries. CONCLUSION: While reductions in ASDRs and ASMRs over 30 years highlight progress in CNS cancer management, rising ASIRs emphasize the urgent need for enhanced prevention, innovative treatment strategies, and equitable healthcare access to address the growing burden and persistent regional disparities.