Report: Number of cancer cases worldwide to go up 75% by 2030
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Plagues, Pestilences
and Diseases
Report: Number of cancer cases worldwide to go up 75% by
2030
CNN - If current population trends continue, the number of people
with cancer worldwide will go up to 22.2 million by 2030, up from
12.7 million in 2008, according to a study published in The Lancet
on Thursday. Cases are expected to surge in poorer parts of the
world, which are ill-equipped to handle the burden.
For the past few years, experts have been warning about the rising
incidence of global cancer rates. In 2009, researchers were
predicting cancer would overtake heart disease as the world's
leading cause of death.
The new study, led by Dr. Freddie Bray of the International Agency
for Research on Cancer, confirms that we're headed in the wrong
direction when it comes to controlling cancer rates worldwide.
Bray and his co-authors looked at how cancer cases and deaths for
different types of cancer vary among countries with different
levels of economic development. The study found that any
reductions in infection-related cancers like stomach, cervical or
liver cancer (still more common in low-income regions of the
world), are being offset by "an increasing number of new cases
that are more associated with reproductive, dietary and hormonal
factors." Tobacco usage also contributes to an increasing number
of cancer cases.
"This study underscores the fact that there is significant
variation in the types of cancer occurring in various regions of
the world based on different levels of development," says Nathan
Grey, national vice president for global health for the American
Cancer Society and one of the study authors.
Grey says the predicted increases are dramatic, particularly in
middle-income and low-income countries, many of which are set up
to deal with diseases like HIV and tuberculosis, but don’t have an
infrastructure to deal with increasing cancer cases.
"This will add a lot in terms of human suffering and also in terms
of the economic consequences," says Grey.
He says the middle-income regions will face a double whammy
because they haven't yet really conquered the infection-related
cancers ( like stomach, which can be caused by bacteria and
cervical, liver and Kaposi sarcoma, which are caused by viruses),
and they face the looming surge in cases often linked to a more
'Westernized" lifestyle, due to tobacco use and obesity (lung,
breast, colorectal).
“Sustained prevention efforts are also needed to lower these
projected increases. As cancer becomes more globally prevalent,
initiatives like tobacco cessation and immunization are crucial in
reducing the disease’s worldwide burden," says Dr. Michael P.
Link, president of the American Society of Clinical Oncology.
Grey agrees. He says the results of this study are a wake-up call
for the global community, but points out that there are low-cost
ways to head off this dire cancer forecast: "You can do
vaccinations and you can do low-cost screening and you can put
taxes on tobacco products to reduce usage and that would make a
huge difference."
Post by: Miriam Falco - CNN Medical Managing Editor