Global, regional and national burden of tracheal, bronchus, and lung cancer attributable to ambient particulate matter pollution from 1990 to 2021: an analysis of the global burden of disease study.

Background: The ambient particulate matter pollution may play a critical role in the initiation and development of tracheal, bronchus, and lung (TBL) cancer. Up to now, far too little attention has been paid to TBL cancer attributable to ambient particulate matter pollution. This study aims to assess the disease burden of TBL cancer attributable to ambient particulate matter pollution in global, regional and national from 1990 to 2021 to update the epidemiology data of this disease.

Methods: Leveraging data from the Global Burden of Disease (GBD) 2021 study, we analyzed the worldwide burden of TBL cancer resulting from ambient particulate matter pollution using indices including disability-adjusted life years (DALYs), age-standardised rate of DALYs (ASDR). This burden was further segmented based on variables including geographical location, and socio-demographic index (SDI), age and sex.

Results: The ASDR per 100,000 population of TBL cancer attributable to ambient particulate matter pollution increased by 0.2%[95% UI 0.1 to 0.3] to 79.6[95% UI 49.0 to 111.2] from 1990 to 2021 Globally. Middle-aged and elderly individuals accounted for the majority of the disease burden, with the highest value at the 65-69 years. Most of the disease burden was concentrated in countries with High-middle SDI. There was a positive correlation between ASDR of TBL cancer due to particulate matter pollution and the SDI(ρ = 0.66, p < 0.001). East Asia and Central Europe exhibited higher observed values than the fitted curves, while such as Austraiasia South Asia and Western Sub-Saharan Africa had a lower observed values than the fitted curves. Decomposition analysis showed that population aging and growth were the two major drivers of the increase in DALYs.

Conclusions: The disease burden of TBL cancer attributable to ambient particulate matter pollution has increased, especially in regions and countries with High-middle SDI.