One in 20 women in the world will be diagnosed with lifelong breast cancer, and one in 70 will die of the disease. The projection is by study published on Monday (24) in the prestigious scientific journal Nature Medicine. If the annual rates continue, up to 2050 there will be 3.2 million new cases of breast cancer and 1.1 million disease -related deaths per year, with disproportionate growth in low human development countries (HDI).
To the estimates They were based on the Global Cancer Observatory of the International Cancer Research Agency (IARC), including data from Cancer Incidence In Five Continents and the World Health Organization (WHO) mortality database.
“Every minute, four women are diagnosed with breast cancer worldwide and a woman dies of illness, and these statistics are getting worse,” says IARC scientist Joanne Kim, one of the report’s authors, in a statement. “Everyone involved, especially governments, can mitigate or reverse these trends by adopting primary prevention policies, such as WHO ‘best options for non -transmitted chronic diseases, as well as investing in early detection and treatment, supported The WHO breast cancer initiative to save millions of lives in the coming decades. ”
According to the survey worldwide, most cases and breast cancer deaths occur in people 50 years or older, representing 71% of new cases and 79% of deaths. However, in Africa, almost half (47%) of cases are diagnosed in people under 50 – a significantly higher proportion than in North America (18%), Europe (19%) and Oceania (22%) .
Although the proportion of breast cancer deaths in people under 50 is lower than that of incidence, it varies widely: from 8% in Europe to 41% in Africa.
High HDI countries have higher breast cancer rates
According to the study, the load of breast cancer is not evenly distributed among the different regions of the world. For example, breast cancer incidence rates were higher in Australia and New Zealand (with 100 new cases per 100,000 women), followed by North America and northern Europe.
The lowest rates were recorded in southern Asia (with 27 new diagnoses per 100,000 women), central Africa and eastern Africa. This pattern is related to factors such as higher alcohol consumption and lower levels of physical activity in countries with high HDI.
On the other hand, breast cancer mortality rates were higher in melanesia (with 27 deaths per 100,000 inhabitants), Polynesia and West Africa, and lower in the East Asia (with seven deaths per 100,000 women), Central America) and North America.
The report showed that in countries with very high HDI, for every 100 women diagnosed with breast cancer, 17 die from the disease. In countries with low HDI, more than half (56) dies. According to the study, this disparity is probably due to inequalities in access to early detection, timely diagnosis and treatment.
In addition, the study showed that there are large variations between the lifetime risk of diagnosis and breast cancer death between countries and continents. The lifetime risk of being diagnosed with breast cancer was higher in France (1 in 9) and North America (1 in 10). The lifetime risk of dying of the disease was higher in Fiji (1 in 24) and Africa (1 in 47), while in France it was 1 in 59 and in North America, 1 in 77.
Trends in incidence rates and mortality
The researchers found that, in the latest period of 10 years (2008–2017), breast cancer incidence rates increased between 1% and 5% per year in 27 of the 50 countries analyzed, especially in very high HDI.
On the other hand, mortality rates decreased in 29 of 46 countries with very high HDI, according to the WHO mortality database. Only seven of these countries (such as Belgium and Denmark) reached the goal of WHO’s global breast cancer initiative to reduce breast cancer mortality by 2.5% per year.
However, mortality still increased in seven countries, four of which had some of the study’s minor HDI, highlighting inequality in advances in reducing breast cancer deaths.
“This report highlights the urgent need for high quality cancer data and accurate records about the number of new diagnoses and outcomes in countries with low and medium HDI,” says Isabelle Soerjomataram, deputy chief of the IARC Cancer Surveillance Division. “Continuous progress in early diagnosis and access to treatment is essential to reduce global breast cancer gap and ensure that the goal of reducing the suffering and mortality of the disease is achieved by all countries.”
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This content was originally published in 1 in 20 women will have breast cancer throughout life, says study on the website CNN Brazil.
Source: CNN Brasil
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