Index · Artikel · Evidence ties smoking to throat, stomach cancer

Evidence ties smoking to throat, stomach cancer

2011-03-29 7
   
Advertisement
résuméNEW YORK (Reuters Health) - Smokers face an increased risk of certain types of throat and stomach cancers, even years after they quit, a new study finds. Combining the results of 33 past studies, Italian researchers found that current smokers were mo
Advertisement

Evidence ties smoking to throat, stomach cancer


NEW YORK (Reuters Health) - Smokers face an increased risk of certain types of throat and stomach cancers, even years after they quit, a new study finds.

Combining the results of 33 past studies, Italian researchers found that current smokers were more than twice as likely as nonsmokers to develop cancer, either in their esophagus or in a part of the stomach called the gastric cardia.

In some of the studies, the risk of esophagus cancer remained high even when people had quit smoking three decades earlier.

The two cancers, both known as adenocarcinomas, are relatively uncommon in Western countries. Rates elsewhere are much higher, especially in less developed countries. But in recent decades, rates of the cancers have been rising in the U.S. and Europe -- possibly related to growing rates of obesity.

Smoking has long been considered a risk factor for the two cancers.

But these latest findings offer a "better quantification" of the risks, said senior researcher Dr. Eva Negri, of the "Mario Negri" Institute of Pharmacological Research in Milan.

What's more, they suggest that the risks remain higher than average for some time after smokers quit.

"Stopping smoking is highly beneficial at any age, but it appears that for these cancers the risk decreases only slowly," Negri told Reuters Health in an email.

For their study, published in the journal Epidemiology, Negri and her colleagues pooled the results of 33 previous studies. In most of them, researchers had compared a relatively small group of patients with either esophagus or gastric cardia tumors against a cancer-free group. In three studies, researchers had followed large groups of adults over time, charting any new cases of esophageal or gastric cardia cancers.

Overall, Negri's team found, current smokers had more than double the odds of developing either of the cancers, compared to people who had never smoked.

And while that risk declined after people stopped smoking, it was still 62 percent higher in former smokers than in lifelong non-smokers. In some studies, the extra risk of esophagus cancer persisted up to 30 years after people had quit.

Since both esophageal and gastric cardia adenocarcinomas are fairly uncommon in the West, the absolute risks to any one smoker may be low.

According to the American Cancer Society, the average American has a one in 200 chance of developing any type of esophageal cancer over a lifetime, and a one in 114 risk of developing some form of stomach cancer.

By comparison, the odds of developing lung cancer are about one in 13 for men, and one in 16 for women -- counting both smokers and non-smokers. Smokers would be at much greater risk than lifelong non-smokers.

Lung cancer, heart disease and other ills are "numerically more important" than esophageal and gastric cardia cancers when it comes to the health consequences of smoking, Negri noted.

The types of studies that were available for her team to analyze can't prove that smoking causes adenocarcinoma of the esophagus or gastric cardia. To do that, researchers would have to purposely expose some people to years of tobacco smoke and see what happens to them over time - and ethical reasons make a study like that impossible.

Still, Negri and her colleagues say, the risks seen in the current study offer smokers one more reason to quit -- and non-smokers one more reason to never start.

SOURCE: bit.ly/hQnt5V Epidemiology, online February 16, 2011.

  • Evidence ties smoking to throat, stomach cancer

    Evidence ties smoking to throat, stomach cancer
    NEW YORK (Reuters Health) - Smokers face an increased risk of certain types of throat and stomach cancers, even years after they quit, a new study finds. Combining the results of 33 past studies, Italian researchers found that current smokers were mo
    2011-03-29 CANCEREVIDENCE
  • Heavy drinking tied to higher stomach cancer risk

    Heavy drinking tied to higher stomach cancer risk
    NEW YORK (Reuters Health) - Men who down more than four alcoholic drinks in a day may have a heightened risk of stomach cancer, a large European analysis suggests. A number of studies have looked at whether people's drinking habits are related to the
    2011-10-28 CANCERDRINKING
  • Salty diet tied to stomach cancer in Korean study

    Salty diet tied to stomach cancer in Korean study
    NEW YORK (Reuters Health) - A salty diet may increase the risk of stomach cancer by 10 percent, South Korean researchers found in a study of more than 2 million people. They found a "weak but positive" association between a preference for salt a
    2010-03-24 DIETSALTY
  • Soy may not protect against stomach cancer

    Soy may not protect against stomach cancer
    NEW YORK (Reuters Health) - Estrogen-like compounds that come with a soy-rich diet are sometimes linked to a reduced risk of cancer, but new research from Japan suggests that protection doesn't extend to stomach cancer. In a study that tried to tease
  • Marijuana smoking tied to testicular cancer: study

    Marijuana smoking tied to testicular cancer: study
    n">Young men who had smoked marijuana recreationally were twice as likely to be diagnosed with testicular cancer than men who have never used marijuana, according to a U.S. study. Researchers whose findings appeared in the journal Cancer said the
    2012-09-11 CANCERMARIJUANA
  • More evidence ties diabetes to Parkinson's risk

    More evidence ties diabetes to Parkinson's risk
    NEW YORK (Reuters Health) - People with diabetes may have a heightened risk of developing Parkinson's disease, especially at a relatively young age, a new study finds. Published in the journal Diabetes Care, the study adds to recent research linking
    2012-04-04 DIABETESPARKINSONS
  • Smoking, drinking up risks of gut, throat cancers

    Smoking, drinking up risks of gut, throat cancers
    NEW YORK (Reuters Health) - A new study confirms that smoking raises a person's risks of the major forms of esophageal and stomach cancers, while drinking has more narrow effects. In a study that followed more than 120,000 Dutch adults for 16 years,
    2009-12-31 RISKSCANCERS
  • Smoking linked to earlier menopause: study

    Smoking linked to earlier menopause: study
    n">Women who smoke may hit menopause about a year earlier than those who don't light up, according to a study that also notes an earlier menopause may influence the risk of getting bone and heart diseases. The study, which was carried in the journ
    2011-10-17 SMOKINGMENOPAUSE
  • Air pollution tied to lung cancer in non-smokers

    Air pollution tied to lung cancer in non-smokers
    NEW YORK (Reuters Health) - People who have never smoked, but who live in areas with higher air pollution levels, are roughly 20 percent more likely to die from lung cancer than people who live with cleaner air, researchers conclude in a new study. "
    2011-10-28 CANCERPOLLUTION
  • Diesel exhaust fumes cause lung cancer, WHO says

    Diesel exhaust fumes cause lung cancer, WHO says
    LONDON Diesel engine fumes can cause lung cancer and belong in the same potentially deadly category as asbestos, arsenic and mustard gas, World Health Organisation (WHO) experts said on Tuesday. In an announcement that caused concern in the auto indu
    2012-06-12 WHOCANCERDIESEL
  • Can daily aspirin help ward off cancer?

    Can daily aspirin help ward off cancer?
    NEW YORK (Reuters Health) - A new study bolsters the case that daily aspirin may help protect against cancer, although the effect seems weaker than previously thought. And the final chapter on the popular but controversial drug has yet to be written,
    2012-08-10 CANCERAspirin
  • Canada study finds link between smoking crack, HIV

    Canada study finds link between smoking crack, HIV
    VANCOUVER, British Columbia Smoking crack cocaine daily adds to the risk of spreading HIV, a Canadian study published on Monday says, although researchers acknowledge they are not sure about the exact link. The researchers, who studied the relationsh
    2009-10-19 HIVCRACK
  • Roche's Avastin helps in ovarian cancer

    Roche's Avastin helps in ovarian cancer
    ZURICH Roche's Avastin helps women with advanced ovarian cancer live longer without their disease getting worse, a late-stage study showed, boosting its prospects after a recent setback in stomach cancer. Roche, the world's largest maker of cancer dr
    2010-02-25 ROCHE
  • Surgeon general declares youth smoking an "epidemic"

    Surgeon general declares youth smoking an "epidemic"
    CHICAGO Smoking among America's youth has reached epidemic proportions, starting them on the path to a lifetime of addiction, the U.S. surgeon general's office said in its first report on youth smoking since 1994. Among U.S. high school seniors, one
    2012-03-08 USASMOKINGYOUTH
  • Faults seen in cancer study funding

    Faults seen in cancer study funding
    NEW YORK (Reuters Health) - It's well-known that clinical trials of cancer treatments often can't cover their costs. But a new study suggests that government-funded trials could take at least one cue from those backed by drug companies. In 2010, the
    2012-04-11 CANCERSTUDYFUNDING
  • Cigarette labels may educate about bladder cancer

    Cigarette labels may educate about bladder cancer
    NEW YORK (Reuters Health) - Graphic warning labels on packs of cigarettes may convince some people that smoking ups the risk of bladder cancer, says a new study from Canada. A survey of 291 people at doctors' offices in Toronto found less than half k
    2013-03-28 CANCERCIGARETTE
  • Smoking to kill 5.6 million US kids if not stubbed out: report

    Smoking to kill 5.6 million US kids if not stubbed out: report
    CHICAGO/WASHINGTON Another 5.6 million American children may die prematurely unless smoking rates fall in the United States, according to a report by the U.S. surgeon general which links a range of new illnesses to the habit. Fifty years after the fi
    2014-01-17 REPORTUSASMOKING
  • U.S. cancer doctors drop pricey drugs with little or no effect

    U.S. cancer doctors drop pricey drugs with little or no effect
    LOS ANGELES U.S. oncologists, aware that patients are paying more of the costs of expensive cancer drugs, are increasingly declining to prescribe medicines that have scant or no effect, even as a last resort. At least half a dozen drugs, including co
  • American Cancer Society eases mammogram recommendations

    American Cancer Society eases mammogram recommendations
    n">(Reuters Health) - In a major shift, the American Cancer Society is recommending that women at average risk of breast cancer get annual mammograms starting at age 45 rather than at age 40, and that women 55 and older scale back screening to eve
  • New U.S. cancer cases holding steady, deaths declining

    New U.S. cancer cases holding steady, deaths declining
    The number of new cancer diagnoses in the U.S. is largely steady while the number of cancer deaths continues to decline, according to a new report from the nation's leading cancer advocacy group. This year, the U.S. will see nearly 1.7 million new ca
    2016-01-08 CANCERHEALTH

TOP

  • Day/
  • Week/
  • Original/
  • Recommand

Updated