Incidence, mortality, and DALYs of global pharyngeal cancer: systematic analysis and projections Based on global burden of disease study 2021.

Abstract

Introduction: Compared to other head and neck cancers, pharyngeal cancer (PC) has poorer survival, representing a significant health burden. This study aimed to assess the burden and trends of PC at global, regional, and national levels and analyze mortality-related factors.

Methods: Data on PC, including incidence, mortality, disability-adjusted life-years (DALYs), and death-related risk factors from 1990 to 2021, were obtained from the Global Burden of Disease Study 2021. Estimated annual percentage changes (EAPCs) were calculated to assess trends.

Results: In 2021, PC incidence was 169,820, with 98,435 deaths and 2,843,781 DALYs. Age-standardized rates for incidence, death, and DALYs were 1.93, 1.13, and 32.30 per 100,000, respectively. South Asia had the highest death and DALYs rates (3.23 and 93.00). Low-middle socio-demographic index (SDI) regions showed the highest death rate (2.19) and the greatest EAPC for death rates (0.684%). A positive correlation between SDI and death rates was observed globally (R = 0.26, p < 0.05), particularly in males (R = 0.3, p < 0.05), but not in females. Males exhibited a trend toward younger ages at death by aclohol, peaking in the 35-39-year group.

Conclusion: In 2021, global PC incidence, deaths, and DALYs increased significantly, with notable regional disparities, especially in low-middle SDI regions. Alcohol-related mortality disproportionately affected younger males. Strengthening oral health resources, controlling alcohol and tobacco use are essential to reducing the global PC burden.