Trends and cross-country inequalities in the global, regional, and national burden of gallbladder and biliary tract cancer from 1990 to 2021, along with the predictions for 2035.

BACKGROUND

The global burden of gallbladder and biliary tract cancer (GBTC) is on the rise.

METHODS

The incidence, mortality, and disability-adjusted life years (DALYs) of GBTC from 1990 to 2021 were obtained from the Global Burden of Diseases Study (GBD) 2021. The Bayesian Age-Period-Cohort (BAPC) model was also employed to project disease trends for the next 15 years.

RESULTS

In 2021, new GBTC cases observed globally amounted to 216,768, with 171,961 mortality and 3732,121 DALYs. From 1990-2021, a notable surge was recorded in the incidence of GBTC by 101 %, mortality by 74.26 %, and DALYs by 60.45 %. Regions with superior Socio-Demographic Index (SDI) reflected elevated incidence and mortality rates. However, a significant decrease was noticed in the age-standardized incidence rate (ASIR) and age-standardized mortality rate (ASMR). Despite a reduction in health disparities among countries, differences remain. Prognostications predict a continual decline in global ASIR and ASMR through 2035.

CONCLUSIONS

The study found that the burden of GBTC in incidences, mortalities, and DALYs has been on the rise, with some correlation with socio-economic development.