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Cell Phone Use Study Sees Increased Cancer Risk

Dotnaught writes "Frequent cell phone users face a 50% greater risk of developing tumors in the salivary glands than those who don't use cell phones, according to a recently published study. The study, led by Tel Aviv University epidemiologist Dr. Siegal Sadetzki, appeared last December in the American Journal of Epidemiology 'Sadetzki's findings are sure to add to confusion surrounding the already contentious debate about the health effects of cell phone radiation. Many other studies in recent years have found no increased risk of cancer due to mobile phone use, but a few have stopped short of ruling the possibility out and a few have said increased risk of cancer is small but real.'. Even with the increased risk, however, you're still about three times more likely to die in a car crash in a given year."

15 of 222 comments (clear)

  1. Re:Margin of error by stranger_to_himself · · Score: 3, Informative

    I'm skeptical about these statistics: 500 tumour patients and 1300 control subjects can't really support a probability of 0.003% and 0.0045% for each outcome, can they? I reckon that these numbers are less likely than the false-positive error for their data set.

    These figures comes from two different studies. The \emph{relative risk} increase of 1.5 comes from one case-control study. This is then applied to a survey of the total number of cases in the population, leading to an estimate of the \emph{absolute risk} increase of 0.0015%. That's a perfectly reasonable thing to do. The result isn't worth getting too excited about, but it's interesting none the less.

    The bigger problem I would have, (although I don't think it's a fatal problem for the study) is that overall they found no effect of being a regular phone user. They had to do a subgroup analysis of very heavy users in rural areas to find a significant increase. I'd also be worried this being a freak result given the number of negative findings.

  2. Re:I wonder... by dreamchaser · · Score: 3, Informative

    There have been numerous studies that shows it is far more distracting to talk to someone on the phone than if they are in the seat next to you. The person next to you knows when to shut up, and there is in general better feedback. When you talk on the phone, even on a handsfree, you dedicate a lot more attention to it than you do to speaking to someone who is physically there. I'm not sure what that is, but it is what it is.

    It is FAR more dangerous to talk on the phone while driving than to talk to another person in the car.

  3. Re:I wonder... by Firehed · · Score: 3, Informative

    The cell phone is much worse. The passenger can see danger and not only shut the fuck up at an appropriate time, but point it out to you. Not so much for someone on the other side of some spectrum.

    --
    How are sites slashdotted when nobody reads TFAs?
  4. Bullshit by Thaelon · · Score: 4, Informative

    Cell phones do not produce ionizing radiation, nor do they contain any matter that does.

    Therefore, the sun is approximately infinitely more likely to cause cancer than a cell phone.

    Non-ionizing radiation (which is all that cell phones produce) has little to no impact on the human body. See for example, light bulbs, radios, radio stations, TV stations, microwaves, ovens, the earth's magnetic field, refrigerator magnets, CB radios, MRI machines, CAT scanners, PET scanners, CD players, MP3 players, computers, monitors, TVs, cell phones, watches, motors.

    The worst a cell phone can do to your body via radiation, is make you a few nano-joules more energetic. Unless of course you installed a nuclear power source in your phone for some reason. Your freaking smoke detectors are more likely to cause cancer than your cell phone.

    --

    Question everything

    1. Re:Bullshit by jeff4747 · · Score: 3, Informative

      We do not know enough about cellular biology to make the assumption that non-ionizing radiation is inherently safe across all frequencies and power levels, especially if the source of that radiation is a cell phone -- which puts out a fair deal more radio power than the CD players and displays you compare it to, and which is typically operated right next to one's head.

      Walk outside on a sunny day. You have just exposed your head to far more non-ionizing radiation than a cell phone.

      If exposure to non-ionizing radiation was dangerous, that gigantic fireball in the sky would have killed us all by now.

    2. Re:Bullshit by richard.cs · · Score: 2, Informative

      PET scans do involve ionizing radiation, not from the machine itself but from a radioisotope such as carbon-11 which is injected into the test subject. It emits positrons when it decays which are directly ionizing in the same way as beta radiation. The positrons then annihilate with electrons producing a pair of 511 keV gamma photons. The gamma radiation is also ionizing.

      With regard to the cell phones the suggested mechanism is localized heating of the tissues near to the antenna which is possible but wouldn't necessarily cause cancer.

    3. Re:Bullshit by jeff4747 · · Score: 3, Informative

      Tell that to everyone who's died of skin cancer.

      Ultraviolet light causes skin cancer. Ultraviolet light is ionizing radiation. that big radiation-spewing ball also puts out lots of non-ionizing radiation. Far more non-ionizing radiation reaches the surface of the earth than ionizing radiation.

    4. Re:Bullshit by RichardEasterling · · Score: 4, Informative

      Be careful with your list Thaelon.

      IAALRRT(I Am A Licensed and Registered Radiologic Technologist) ie. x-ray tech.
      You are correct that the cell phone signal is indeed non-ionizing, but CAT scanners use the maximum amount of ionizing radiation that is legal to give a person. The legal limits are set so low that the net affect of having a CT is minimal especially when weighed against the possibility of having a serious medical condition go unnoticed.

      CT scans typically use radiation with a penetrating strength of @120kvp (KiloVolts Peak). This is strong enough that when a cell is damaged it is usually either fatal to the cell or results in the inability of the cell to reproduce (this makes the chances of getting cancer very slim). This is why pregnant women in their first trimester can not have a CT scan. Our bodies can easily recover form the loss of a few hundred cells, but the baby will almost certainly not be able to recover.

      This is all assuming that by CAT scanner you meant Computer Aided Tomography. If you meant something else then please disregard this post.

      Richard Easterling

    5. Re:Bullshit by Anonymous Coward · · Score: 1, Informative

      CAT scanners http://en.wikipedia.org/wiki/Computed_tomography, and PET scanners http://en.wikipedia.org/wiki/Positron_emission_tomography do in fact produce ionizing radiation.

  5. Re:if you can pry it from my cold dead fingers... by petes_PoV · · Score: 2, Informative
    yah, sure it does - all it needs is some personal choice.

    I went through a similar phase many years ago. It's quite flattering to feel that you're always needed - for a time. After that it becomes a chore, then something you hate.

    Most people grow out of it when they realise that the people who put them "on permanent call" are really just being lazy/exploitative.

    Others find it's reassuring to know that someone wants/needs them. If so, then fine - they're getting something out of it too (apart from stress related illnesses).

    However organisations that rely on the monumental efforts of a few key individuals rarely last long - they're just a house of cards, and as soon as one of the key people leaves the whole mess tends to fall apart. Enjoy it while it lasts.

    --
    politicians are like babies' nappies: they should both be changed regularly and for the same reasons
  6. Re:I wonder... by Anonymous Coward · · Score: 1, Informative

    GIYF (it's a pdf). And fuck the ill-informed idiots who modded you up.

  7. Re:I wonder... by Stefanwulf · · Score: 2, Informative

    If you're like most people your visual field extends about 90-100 degrees out from your nose on either side, allowing you to watch the road but keep the passenger in your peripheral vision. You don't have to be paying active attention to them to be receiving and processing some visual information, such as arm motion and shifts in posture.

  8. Re:Hmm...Actually by zsouthboy · · Score: 2, Informative

    Everyone gets those "Phantom Vibrations", but try again - they're just muscle memory. [citation: http://jscms.jrn.columbia.edu/cns/2005-05-03/orso-phantomvibes ]

    The interference with speakers is caused by...wait for it... radio waves.

    Those things that are engulfing all of us, all the time, in varying intensities. Naturally produced or not.

    Just because you do not understand the world around you, doesn't mean you must be fearful of it.

  9. Re:Not reassuring by Hatta · · Score: 4, Informative

    To put some numbers on this, around 40,000 people die in car crashes per year. By their logic, around 13,333 people die from cell phone induced cancer per year. But oral cancer only kills around 8000 people per year. Clearly these figures have been pulled from someone's ass.

    --
    Give me Classic Slashdot or give me death!
  10. Re:I wonder... by FleaPlus · · Score: 3, Informative
    Actually, I read a study a while back (several years ago) that showed talking to a non-present individual to be far more distracting than talking to someone who was physically there.

    Is this the study you're thinking of?

    Effects of remote and in-person verbal interactions on verbalization rates and attention to dynamic spatial scenes

    Leo GugertyCorresponding Author Contact Information, E-mail The Corresponding Author, a, Mick Rakauskasb and Johnell Brooksa
    a Clemson University, Clemson, SC, USA
    b HumanFIRST Program, University of Minnesota, USA
    Received 23 July 2003; Revised 1 December 2003; accepted 11 December 2003. Available online 24 April 2004.

    Abstract

    This study focused on how teams allocated attention between a driving-related spatial task and a verbal task, and how different kinds of verbal interactions affected performance of the driving-related task. In Experiment 1, 29 two-person teams performed an interactive verbal task while one team member also performed a simulated driving task. Of the team members performing only the verbal task, half could see their partner's spatial situation, as a car passenger can (in-person condition), and half were remotely located, similar to someone speaking to a driver using a cell-phone. Teams interacted verbally at an overall slower rate during remote than in-person interactions, suggesting that remote verbal interactions are more difficult than in-person interactions. Verbal interactions degraded situation awareness for driving-related information while performing the spatial task; and this degradation was not greater during remote than in-person interactions. Experiment 2 used a faster-paced verbal task and found greater degradation of situation awareness due to the verbal task. These findings are potentially relevant to the issue of how passenger and cell-phone conversations affect driving performance.