South Africa 6.12.2016 02:59 pm

New study reveals three deadliest cancers in South Africa

New study reveals three deadliest cancers in South Africa

Cancer mortality decreased in many nations over the past decade but increased in more than 50 countries, most of which are in sub-Saharan Africa.

A new Global Burden of Disease Study urges increased prevention efforts and vigilance in early detection and treatment, reports the Boksburg Advertiser.

Lung cancer, cervical cancer and oesophageal cancer are the three deadliest cancers in South Africa, accounting for 19 160 deaths in 2015, according to a new analysis of 32 cancer groups in 195 countries or territories. In 2015, there were 114 091 new cancer cases in South Africa and 58 237 deaths in total.

Globally, cancer is the second leading cause of death after cardiovascular diseases, but the chances of getting cancer and dying from it look radically different depending on where you live.

“The disease burden of cancer is growing in South Africa, and health infrastructure and resource allocation will not be capable of dealing with it unless substantial changes are made and more dedicated funding is realised,” said Professor Benn Sartorius, a co-author of the study, based in Public Health Medicine at University of KwaZulu-Natal (UKZN) and also a steering member of the SA MRC/UKZN Gastrointestinal Cancer Research Centre.

“Initiatives such as the Global Burden of Disease Study allow us to track cancer trends in a timely fashion.

“This will continue to assist countries such as South Africa with regards to cancer burden tracking and planning as we move toward the Sustainable Development Goals of 2030,” said Sartorius.

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According to the study, cancer mortality decreased in many nations over the past decade but increased in more than 50 countries, most of which are in sub-Saharan Africa.

These countries include Niger, Kenya, Tanzania, the Democratic Republic of Congo, Mali, and Senegal, where health services needed to prevent, diagnose, and treat cancer are often missing.

In 2015, there were 17.5 million new cancer cases worldwide and 8.7 million deaths. The disease burden of cancer remains heaviest for countries with the highest levels of development, such as the United States, the United Kingdom and Germany. Globally, 44% of all new cancer cases and 34% of all cancer deaths are in this highest development group.

In South Africa, breast cancer is the most common cancer for women, but cervical cancer is the deadliest, with 5 406 female deaths in 2015. Other top cancer causes of death for women were breast, lung, and colorectal cancers.

For men, prostate cancer fueled the highest number of new cases, but lung cancer was the number one killer, causing 5 726 male deaths. Prostate, esophageal, colorectal, and liver cancers were the other leading causes of cancer death for South African men.

Death rates per 100 000 people are rising for the top 10 causes of cancer death in South Africa, with the exceptions of esophageal and stomach cancer. The most marked increases were displayed by colorectal cancer, with a death rate that rose 31 per cent between 1990 and 2015; breast cancer, which grew 35 per cent; ovarian cancer, up 41 per cent; and the death rate of prostate cancer increased by 45 per cent.

The authors of the study call on government agencies and the private sector to expand prevention efforts, especially in lower SDI countries where several of the deadliest cancers, such as cervical and liver cancer, are also the most preventable.

“The cancer divide is real and growing,” said leading author Christina Fitzmaurice, assistant professor at the Institute for Health Metrics and Evaluation (IHME) at the University of Washington.

“The number of new cancer cases is climbing almost everywhere in the world, putting an increasing strain on even the most advanced health systems. But the most rapid and troubling escalation can be seen in countries of lower development status, which can ill afford it.”

* The report was published in JAMA Oncology in a study by the Global Burden of Disease collaboration, an international consortium of 2 000 researchers in nearly 130 nations led by IHME.

Leading causes of cancer deaths in South Africa for both sexes, with number of deaths, 2015

1 Lung 8,515
2 Cervical 5,406
3 Esophageal 5,239
4 Breast 5,180
5 Prostate 4,638
6 Colorectal 4,348
7 Other neoplasms 3,120
8 Liver 2,726
9 Pancreatic 2,708
10 Stomach 2,386

 Caxton News Service

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