The worldwide epidemiology of lip and oral cavity cancer attributable to smoking based on the Global Burden of Disease Study 2019

Abstract

Abstract Aim To analyze the worldwide epidemiology of lip and oral cavity cancer attributable to smoking. Methods The worldwide epidemiology of lip and oral cavity cancer attributable to smoking and its spatial distribution differences were analyzed using the age-standardized mortality rate, age-standardized disability-adjusted life years (DALYs) rate, and estimated annual percent change (EAPC) according to information from the Global Burden of Disease Study 2019. Results The number of deaths and DALYs associated with lip and oral cavity cancer attributable to smoking globally showed upward trends from 1990 to 2019, but the age-standardized mortality and DALYs rates decreased. The age-standardized mortality rate gradually increased with age. The age-standardized mortality and DALYs rates were markedly higher in low-middle social development index (SDI) regions than in other regions. The age-standardized mortality and DALYs rates showed slight increasing trends (EAPC = 0.16 and 0.07, respectively) in middle-SDI regions and the greatest decrease (EAPC = –1.60 and –1.74, respectively) in high-SDI regions. The three regions with the highest age-standardized mortality and DALYs rates were South Asia (1.59; 39.68), Eastern Europe (1.33; 40.59), and Central Europe (1.30; 37.67), but the largest increases were observed in East Asia (EAPC = 2.32, EAPC = 2.30), the Northern Mariana Islands (EAPC = 3.79, EAPC = 3.67), and Cabo Verde (EAPC = 2.84; DALY, EAPC = 3.38). Conclusion The overall disease burden attributable to smoking is decreasing, but the number of deaths and DALYs are still increasing. Moreover, there are regional and national differences, and high-risk regions and countries should implement targeted interventions to reduce the burden.