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The mortality rate from cancer has been declining for 26 years, thanks in large part to fewer people smoking cigarettes. Watertown Daily Times

NEW YORK — The cancer death rate in the U.S. fell by the most on record as advances in treatments for lung tumors like video-assisted surgery helped prolong the lives of patients.

The mortality rate from cancer has been gradually declining for 26 years, thanks in large part to fewer people smoking cigarettes. But from 2016 to 2017, the most recent period available, it dropped by 2.2%, the most in a single year, according to a report released Wednesday by the American Cancer Society. That compares with an average 1.5% yearly decline over the decade.

The drop translates to roughly 2.9 million fewer cancer deaths than would have occurred had mortality rates remained at their peak. For lung cancer specifically, the mortality rate declined 4.3% annually from 2013 to 2017.

“It is really lung cancer that is driving this,” said Rebecca Siegel, scientific director of surveillance research at the American Cancer Society, and lead author on the new study. “We found increases in survival for lung cancer at every stage in diagnosis.”

She attributed the lower deaths to improvements in treatments, including video-assisted surgery that enables more patients with early lung tumors to become eligible for operations; more precise radiation treatment; and better scanning technology that allows doctors to better assess the stage of tumor, so the patient gets the best treatment right away. At later stages of illness, new, targeted drugs that aim at specific disease-causing genes are helping patients whose tumors have those genetic flaws.

Overall, lung cancer mortality rates have dropped by 51% for men since their peak in 1990, and by 26% for women since their peak in 2002.

Lung cancer still kills far more people than any other tumor. It will cause more than 135,000 deaths this year, the American Cancer Society estimates.

The report isn’t all good news. Prostate cancer death rates have leveled off recently after a period of decline.

The results are being published in CA: A Cancer Journal for Clinicians.

Tribune Wire

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