Since air pollution is an “important factor” in World Health Organization, the percentage of people who have been diagnosed with lung cancer that have never smoked has increased, and air pollution is “important factors. Is now.
According to the International Research Bureau (IARC), the lung cancer of people who have never smoked tobacco or cigarettes is the fifth cause of cancer death in the world.
IARC says that NEVER-SMOKERS lung cancer is almost monopolized as the most dominant adenocarcinoma among the four major subtypes of diseases in both men and women around the world. I did it.
According to IARC research, the exposure to air pollution in 2022 was related to about 200,000 cases of adenocarcinoma. LANCET LESPIRATORY MEDICINE JOURNAL。
Research has discovered that the largest burden on adenocarcinoma caused by air pollution was found in East Asia, especially China.
In an interview with The Guardian, Dr. Freddie Bray, the chief author of the IARC cancer surveillance division and director of Dr. Freddie Bray, emphasized the need for urgent surveillance of lung cancer risk. He said he was there.
He added that there was a need for further research to identify causal factors such as air pollution in groups that smoking are the main causes of lung cancer.
“As seen in the United Kingdom and the United States, the decline in smoking illness tends to increase the percentage of lung cancer diagnosed among those who have never smoked,” Bray said. “Whether or not the global ratio of gland cancer due to surrounding air pollution increases depends on the use of cigarettes around the world and the relative success of future strategies to reduce air pollution.”
Lung cancer remains the main cause of cancer incidence and mortality rate around the world. In 2022, about 2.5 million were diagnosed with this disease. However, the subtype's occurrence pattern has changed dramatically in recent decades.
Of the four major subtypes of lung cancer (gland cancer, squamic hematical carcinoma, small cell cancer, large cell carcinoma), adenocarcinoma has become a dominant subtype for both men and women. IARC was found。
Gena cancer accounted for 45.6 % of women's global lung cancer in 2022 and 59.7 % of women's global lung cancer. Each number was 39.0 % and 57.1 % in 2020.
According to IARC, adenocarcinoma accounts for up to 70 % of lung cancer among smokers.
In the past 40 years, most countries have generally declined male lung cancer, but the percentage of women has continued to rise.
The current trend is that men still have most of the cases of lung cancer (approximately 1.6 million in 2022), but the gap between men and women's lung cancer is narrowed, about 90 in 2022. It suggests that all women are diagnosed with lung cancer.
In 2023, the Guardian revealed that the number of women diagnosed with lung cancer in the UK has overtaken men for the first time, calling for women as much as breast cancer.
Cancer experts have said that the number reflects the historical differences in the illness rate of smoking, especially the peak of smoking much faster than women. The women said they needed to be alert to the signs of potential lung cancer, as for checking chest lumps.
The recent recent cigarette production and the change in smoking patterns have influenced the tendency of lung cancer due to subtypes, accumulating evidence of causal relationship between air pollution and increased gland cancer risk. IARC said.
I don't know if the ratio of lung cancer cases around the world is a smoker, but it suggests that only the evidence is increasing. Scientists are racing beyond smoking and learning more about other things that cause lung cancer.
“Air pollution can be considered an important factor in partially explain the appearance of adenocarcinoma, which accounts for 53 % to 70 % of lung cancer cases among those who have never smoked around the world.” Was reported.
Bray provides important insights about how lung cancer and the basics of danger factors evolve, and “provide clues on how to optimize lung cancer around the world.” Was stated.
He added as follows: “Changes in smoking patterns and exposure to air pollution are the main factors of risk profiles that change the rate of lung cancer due to subtypes today.
“The recent differences by gender are providing insights for cancer prevention experts and policy proprietors who want to develop and implement cigarettes and air pollution control strategies according to high -risk groups.”
