Women smokers face higher bladder cancer risk

Women smokers face a higher risk of bladder cancer than previously thought, according to a US study out Tuesday that points to the changing content of cigarettes as a potential reason for the increase.

The latest data shows that smoking is responsible for about half of bladder cancer cases in women, compared to previous studies that showed between 20-30 percent of such cases were attributable to tobacco use.

"The stronger association between smoking and bladder cancer is possibly due to changes in cigarette composition or smoking habits over the years," said study author Neal Freedman of the National Cancer Institute (NCI).

The research, funded by the US National Institutes of Health and published in the Journal of the American Medical Association, said "the composition of cigarettes has changed during the past 50 years."

These changes have led to "a reduction in tar and nicotine concentrations in cigarette smoke, but also to an apparent increase in the concentration of specific carcinogens, including beta-napthylamine, a known bladder carcinogen."

Also, more women are smoking than before, which could explain the change.

"Men and women are about equally likely to smoke, as observed in the current study and in the US population overall, according to surveillance by the CDC (Centers for Disease Control and Prevention)," said the study.

"The majority of the earlier studies were conducted at time periods or in geographic regions where smoking was much less common among women."

Previous studies have shown the risk of bladder cancer in current and former smokers was between 50-65 percent in men and 20-30 percent in women, while current smokers face triple the risk of getting bladder cancer as people who never smoked.

Tuesday's study shows that smoking is linked to an even higher risk of bladder cancer in women - 52 percent - while men stayed about the same at 50 percent.

The latest findings appear to confirm a 2009 US study by the NCI that showed a stronger association between smoking and bladder cancer than had been observed in the mid-1990s.

"Incidence rates of bladder cancer in the United States have been relatively stable over the past 30 years, despite the fact that smoking rates have decreased overall," said Freedman.

"The higher risk, as compared to studies reported in the mid-to-late 1990s, may explain why bladder cancer rates haven't declined."

CDC data from 2009 shows that an estimated 46 million people, or 20.6 percent of all US adults, smoke cigarettes, though smoking is slightly more common among men (23.5 percent) than women (17.9 percent).

Health authorities say about 69,250 people will be diagnosed with bladder cancer this year in the United States, and 14,990 will die from the disease.

ksh/sst

 

Life and Style
ebookNow available in paperback
ebooks
ebookA delicious collection of 50 meaty main courses
Latest stories from i100
Have you tried new the Independent Digital Edition apps?

ES Rentals

    Independent Dating
    and  

    By clicking 'Search' you
    are agreeing to our
    Terms of Use.

    iJobs Job Widget
    iJobs General

    Recruitment Genius: Web Developer - Junior / Mid Weight

    £15000 - £25000 per annum: Recruitment Genius: To support their continued grow...

    Recruitment Genius: Marketing Data Specialist

    £22000 - £25000 per annum: Recruitment Genius: They are the go-to company for ...

    Recruitment Genius: Search Marketing Specialist - PPC / SEO

    Negotiable: Recruitment Genius: This is an opportunity to join the UK's leadin...

    Recruitment Genius: Sales Administrator

    Negotiable: Recruitment Genius: This caravan dealership are currently recruiti...

    Day In a Page

    Greece debt crisis: What happened to democracy when it’s a case of 'Vote Yes or else'?

    'The economic collapse has happened. What is at risk now is democracy...'

    If it doesn’t work in Europe, how is it supposed to work in India or the Middle East, asks Robert Fisk
    The science of swearing: What lies behind the use of four-letter words?

    The science of swearing

    What lies behind the use of four-letter words?
    The Real Stories of Migrant Britain: Clive fled from Zimbabwe - now it won't have him back

    The Real Stories of Migrant Britain

    Clive fled from Zimbabwe - now it won’t have him back
    Africa on the menu: Three foodie friends want to popularise dishes from the continent

    Africa on the menu

    Three foodie friends want to popularise dishes from the hot new continent
    Donna Karan is stepping down after 30 years - so who will fill the DKNY creator's boots?

    Who will fill Donna Karan's boots?

    The designer is stepping down as Chief Designer of DKNY after 30 years. Alexander Fury looks back at the career of 'America's Chanel'
    10 best statement lightbulbs

    10 best statement lightbulbs

    Dare to bare with some out-of-the-ordinary illumination
    Wimbledon 2015: Heather Watson - 'I had Serena's poster on my wall – now I'm playing her'

    Heather Watson: 'I had Serena's poster on my wall – now I'm playing her'

    Briton pumped up for dream meeting with world No 1
    Wimbledon 2015: Nick Bollettieri - It's time for big John Isner to produce the goods to go with his thumping serve

    Nick Bollettieri's Wimbledon Files

    It's time for big John Isner to produce the goods to go with his thumping serve
    Dustin Brown: Who is the tennis player who knocked Rafael Nadal out of Wimbeldon 2015?

    Dustin Brown

    Who is the German player that knocked Nadal out of Wimbeldon 2015?
    Ashes 2015: Damien Martyn - 'England are fired up again, just like in 2005...'

    Damien Martyn: 'England are fired up again, just like in 2005...'

    Australian veteran of that Ashes series, believes the hosts' may become unstoppable if they win the first Test
    Tour de France 2015: Twins Simon and Adam Yates have a mountain to climb during Tour of duty

    Twins have a mountain to climb during Tour of duty

    Yates brothers will target the steepest sections in bid to win a stage in France
    John Palmer: 'Goldfinger' of British crime was murdered, say police

    Murder of the Brink’s-MAT mastermind

    'Goldfinger' of British crime's life ended in a blaze of bullets, say police
    Forget little green men - aliens will look like humans, says Cambridge University evolution expert

    Forget little green men

    Leading evolutionary biologist says aliens will look like humans
    The Real Stories of Migrant Britain: An Algerian scientist adjusts to life working in a kebab shop

    The Real Stories of Migrant Britain

    An Algerian scientist struggles to adjust to her new life working in a Scottish kebab shop
    Bodyworlds museum: Dr Gunther von Hagens has battled legal threats, Parkinson's disease, and the threat of bankruptcy

    Dying dream of Doctor Death

    Dr Gunther von Hagens has battled legal threats, Parkinson's disease, and the threat of bankruptcy