China is the largest country with lung cancer, while the United States has benefited from tobacco control, and cancer death rates have fallen sharply | World No Tobacco Day

Today (May 31) is World No Tobacco Day, which aims to remind people that smoking is harmful to their health and call for the creation of a smoke-free world.

On February 4, 2021, CA: A Cancer Journal for Clinicians, the academic journal with the highest impact factor in the world, officially released the latest global cancer data.

Statistics show that there are 19.

Lung cancer is the largest cancer in China

In China, there are 815,563 new lung cancer cases (66% of men) and 714,699 deaths of lung cancer (66% of men) in 2020.

At the same time, China is also the country with the highest number of new cases and deaths of lung cancer in 2020.

The top ten cancer types with the number of new cancer cases in China in 2020

The top ten cancer types in China by the number of cancer deaths in 2020

Smoking and second-hand smoke are serious

One of the factors contributing to such a high incidence of lung cancer is smoking and second-hand smoke.

Stones from other hills, can learn

Every year, the American Cancer Society estimates the number of new cancer cases and deaths in the United States, and summarizes the latest population-based cancer incidence and mortality data.

On January 12, 2021, CA: A Cancer Journal for Clinicians, the academic journal with the highest impact factor in the world, released the latest annual statistics on cancer in the United States.

Since 1991, the U.

Throughout most of the 20th century, cancer mortality has been increasing and peaked in 1991.

The cancer death rate fell by 31%, which means that compared with maintaining the peak mortality rate, the number of cancer deaths decreased by 3.

The blue line is the actual number of cancer deaths, the red line is the number of cancer deaths under the condition of maintaining the peak mortality rate, and the shaded part between the blue line and the red line is the number of cancer deaths that reduce the number of deaths.

The annual rate of decrease in male lung cancer mortality increased from 3.

For most of the 20th century, the cancer mortality rate in the United States was on the rise, and a large part of it was due to lung cancer caused by smoking.

Today, with the reduction of smoking and the improvement of early screening and treatment, the cancer mortality rate in the United States has continued to decline from 1991 to 2018, with an overall decrease of 31%.
This means that compared with maintaining the peak mortality rate, the number of cancer deaths decreased by 3.
2 million.

Because lung cancer is the most deadly cancer, accounting for nearly half of cancer deaths, although the rate of decline in mortality from other cancers has slowed, the decline in mortality from lung cancer has accelerated, driving a record single-year decline in overall cancer mortality (2017 -Decrease of 2.
4% in 2018).

The gap between China and the U.
S.

The 5-year survival rate of cancer in the United States is as high as 67%.
According to the latest "Report on Nutrition and Chronic Disease Status of Chinese Residents (2020)", the 5-year survival rate of cancer in China is 40.
5%, which is still not a small gap compared with the United States.

According to Academician He Jie, director of the National Cancer Center, the main reason for the gap between the 5-year survival rate of cancer in my country and developed countries is that, on the one hand, most of the top malignant tumors in China have poor prognosis, such as lung cancer, Esophageal cancer, stomach cancer, liver cancer, etc.
On the other hand, the number of people covered by cancer screening and early diagnosis and treatment in China is relatively small, and the public's awareness of taking the initiative to participate in cancer prevention physical examinations is not strong enough.
Most patients are already in the middle and advanced stages when cancer is discovered, so the treatment effect Relatively poor.
In addition, the standardization of clinical diagnosis and treatment and the level of homogeneity need to be further improved.

What is worthy of recognition is that in the past ten years, the 5-year cancer survival rate in China has increased by nearly 10%.
With the improvement of China's economic level and the advancement of medical standards, more progress will be made in cancer early screening and cancer treatment.
In addition, with As China's efforts to control tobacco use increase, the number of lung cancer incidences and deaths will also be eased.