Heavy discovery | God's journal CA announces the reasons for the decline in cancer deaths in the United States!

Cancer is the main public health problem in the world and the second leading cause of death in China.
the end of 2020, the World Health Organization's International Agency for Research on Cancer (IARC) has released the world's latest cancer burden report.
the report provides a comprehensive analysis of the types of cancers common around the world by 2020, the types of major cancers that cause death, and future cancer trends.
, breast cancer surpassed lung cancer for the first time, making it the most common cancer in the world, accounting for about 11.7 percent of new cancer cases.
, lung cancer remains the leading cause of cancer deaths, accounting for about 18 percent of deaths.
And the top 10 most common deaths, including lung cancer (including colorectal, liver, stomach, female, esophageal, pancreatic, prostate, cervical and leukemia), account for 70.8 per cent of all cancer deaths.
2020, the new crown pneumonia pandemic is hampering the diagnosis and treatment of cancer.
, however, that although the rate of cancer is increasing, the overall cancer mortality rate may be decreasing year by year.
recently, the American Cancer Society (ACS) published its annual report on cancer statistics in the United States, published in the journal CA: A Cancer Journal for Clinicians (IF-292).
ICS expert group estimates that the number of new cancer cases in the United States will be about 1.898 million by 2021, equivalent to an additional 5,200 confirmed cases per day.
most common cancers in men will be prostate cancer, lung cancer and colorectal cancer, which account for about 46 per cent of all cases, with prostate cancer alone accounting for 26 per cent of newly diagnosed cases.
women, breast cancer, lung cancer and CRC account for 50 per cent of all newly diagnosed cases, of which breast cancer alone accounts for 30 per cent of female cancers.
than women (38.9 per cent), the rate of diagnosis of malignant tumours in men (40.5 per cent) was higher, reflecting gender differences in life expectancy and cancer risk.
at the same time, we found that over time, the gender gap in the overall incidence of cancer has narrowed, with the male-female incidence ratio (IRR) dropping from 1.39 in 1995 to 1.14 in 2017.
estimates that about 609,000 cancer deaths in the United States will be expected by 2021.
men had lung, prostate and colorectal cancers as the leading causes, while women had lung, breast and colorectal cancers.
noted that nearly a third of cancer deaths are caused by lung cancer, of which 82% are directly related to smoking.
means that nearly 110,000 people will die from smoking-related lung cancer in the United States alone in 2021, another 3,590 from exposure to secondhand smoke, and 20,420 from non-smoking-related lung cancer.
although the risk of lung cancer from smoking was small, the incidence of non-smoking-related lung cancer was much higher in women than in men.
, however, even among recently diagnosed lung cancer patients (2011-2016), 84 percent of women and 90 percent of men had a history of smoking.
therefore the Group of Experts suggests that smoking remains the leading preventable cause of cancer death.
, smokers who quit before the age of 40 had a reduced risk of dying from smoking-related illnesses by about 90 percent compared to those who chose to continue smoking, according to the study.
, early diagnosis and treatment techniques are important reasons for the significant decline in cancer mortality in the United States.
, the overall cancer mortality rate fell by 31% to 1.490 per 100,000 in 2018, compared with a peak of 2.151 per 100,000 in 1991.
is equivalent to a reduction of 3.1885 million cancer deaths (2.1707 million for men and 1.0178 million for women) compared to the peak mortality rate.
, the number of male deaths is twice as high as that of women, because male mortality rates are higher, but fall faster.
, the decline in cancer deaths from lung cancer and melanoma accelerated significantly.
the average annual mortality rate for melanoma fell by 5.7% between 2014 and 2018, while the average annual mortality rate for lung cancer fell by 5% (5.5% for men/4.4% for women).
analysis is mainly related to the rapid progress of research on two cancer immuno-checkpoint inhibitors and eight new drugs.
same time, the overall death rate in the United States fell by 7.7 percent between 2014 and 2018, 46 percent of which was due to lung cancer.
note that the prognostic prognostics of non-small cell lung cancer are still poor.
with the latest report on lung cancer in China released by IARC and China National Cancer Center, lung cancer is still the leading cause and cause of death of cancer in China.
, drawing on the conclusions of the above CA, quitting smoking and improving the level of diagnosis and treatment may be an important direction that we can now strive for.
: Siegel RL, Miller KD, Fuchs HE, Jemal A. Cancer Statistics, 2021. CA Cancer J Clin. 2021 Jan; 71(1):7-33. doi: 10.3322/caac.21654.MedSci Original Source: MedSci Original Copyright Notice: All text, images and audio and video materials on this website that indicate "Source: Mets Medicine" or "Source: MedSci Original" are owned by Mets Medical and are not authorized to reproduce, and any media, website or individual may not reproduce them with the words "Source: Met Medical".
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