A new study reveals that air pollution is a significant factor in the increasing number of lung cancer cases among people who have never smoked, particularly in East Asia, including China. The study also highlights the growing dominance of adenocarcinoma, a type of lung cancer, especially in never-smokers.
The largest burden of lung cancer attributable to air pollution was found in East Asia, particularly China, the study found.The largest burden of lung cancer attributable to air pollution was found in East Asia, particularly China, the study found.The proportion of people being diagnosed with lung cancer who have never smoked is increasing, with air pollution an “important factor”, the World Health Organization’s cancer agency has said.
The largest burden of adenocarcinoma attributable to air pollution was found in east Asia, particularly China, the study found. “With declines in smoking prevalence – as seen in the UK and US – the proportion of lung cancers diagnosed among those who have never smoked tends to increase,” Bray said. “Whether the global proportion of adenocarcinomas attributable to ambient air pollution will increase depends on the relative success of future strategies to curtail tobacco use and air pollution worldwide.”
Adenocarcinoma accounted for 45.6% of global lung cancer cases among men and 59.7% of global lung cancer cases among women in 2022. The respective figures were 39.0% and 57.1% in 2020.While lung cancer incidence rates for men have generally decreased in most countries during the past 40 years, rates among women have tended to continue to rise.
Changes in cigarette manufacturing and smoking patterns in recent decades have influenced the trends in lung cancer incidence by subtype, and there isIt is not known what proportion of global lung cancer cases are in never-smokers, only that evidence suggests it is rising. Scientists are racing to learn more about what else is causing lung cancer, beyond smoking.
LUNG CANCER AIR POLLUTION ADENOCARCINOMA NEVER-SMOKERS GLOBAL HEALTH
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