mind & bodyOur World in Data

Stomach cancer deaths have fallen in many countries, though about one million people died from it in 2021

the gist

Stomach cancer is one of the leading causes of cancer death in the world, and about one million people died from it in 2021. Yet its mortality rates have fallen in many countries over recent decades. The decline is linked to several factors, including reduced salt intake, refrigeration that lowered reliance on salted and smoked foods, and better treatment. A major factor is the bacterium Helicobacter pylori, which infects the stomach lining and raises the risk of cancer. Control of this infection, along with improved screening and surgery in some places, has helped bring rates down. The progress is uneven, however, with rates still high in parts of East Asia and Eastern Europe. The data shows how public health changes can cut the toll of a common cancer over time.

so what

The decline shows that lifestyle changes, infection control and better care can reduce deaths from a cancer that was once very common, which matters for global cancer policy.

fun fact

The International Agency for Research on Cancer classified Helicobacter pylori as a Group 1 carcinogen in 1994.

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