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Cancer Health Center

Many Americans Believe Cancer Myths

Misconceptions About Personal Risk of Cancer Common, Survey Shows
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WebMD Health News
Reviewed by Louise Chang, MD

July 26, 2007 -- True or not: Underwire bras cause breast cancer, and the risk of dying from cancer in the U.S. is increasing.

If you answered “no” to the first statement, and “yes” to the second, you probably know as much as the average American about cancer risk, according to a newly published survey by the American Cancer Society (ACS).

The 12-question survey revealed that a surprising number of Americans believe scientifically unproven claims concerning cancer.

The questions included those about cancer risk associated with smoking, commercial tanning, and behaviors, such as the use of electronic devices and personal hygiene products.

The notion that underwire bras cause cancer is pure urban myth that has been making the rounds on the Internet for the past several years, Kevin Stein, PhD, of the ACS, tells WebMD.

Death Risk Dropping

Nearly seven in 10 people surveyed (68%) incorrectly believed the risk of dying from cancer was increasing in the U.S.

While the overall number of cancer deaths has been rising, this is because the population is increasing, as is the average age of Americans.

But statistics make it clear that an individual's risk of dying from cancer has been going down over the last two decades, while the five-year survival rate among people with the disease has been going up, says Stein.

“It is not hard to understand why people would believe their risk of dying from cancer is greater, but the implications for prevention and treatment are troubling,” Stein tells WebMD. “If people believe we aren’t successfully treating cancer or if they believe a certain behavior is not a risk factor, they might be more likely to engage in that behavior or put off seeking treatment.”

Stein points out that despite the growing and aging population, the actual number of cancer deaths in the U.S. fell last year for the first time in the history of cancer surveillance.

What You Don’t Know ...

The 957 adults who responded to the survey did reasonably well on many of the questions, with two-thirds correctly identifying at least seven of the 12 statements as false.

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