View Full Version : 2010-06-04 Reuters - New "Study": Circ Prevents...

June 6th, 2010, 12:02
Four years or so later, scientists are still trying to "prove" why circumcision "reduces the risk of HIV." They've come up with this new "study" that explains (or tries to explain) exactly why that happens.

Actually, the "study" is none other than a re-hash from a study last decade, with a few extra inconsistencies. A couple of usual suspects, namely Moses and Bailey, are on board.

In another re-hash of the same "study," supposedly all the men reported near-perfect sex both before and after their circumcisions, leading to the conclusion that “circumcision doesn’t impair sex.”

Now, nearly two out of three of them report genital injury from sex before circumcision! (And “only” one third afterwards.) That’s an awful lot of injury, especially when their sex is supposedly so great. Something is seriously wrong with these studies.

(Commentary in article below taken from circumstitions.com)


Circumcision may prevent sex-related penis injuries

June 4, 2010

NEW YORK (Reuters Health) - A new study finds that circumcised men appear less likely to sustain cuts, abrasions and other minor injuries to the penis during sex -- which may help explain why circumcision lowers the risk of HIV transmission from heterosexual sex.

For the new study, researchers used data from an HIV clinical trial in Africa, where nearly 2,800 men between the ages of 18 and 24 were randomly assigned to undergo circumcision or remain uncircumcised. In 2005 and 2006, that trial and two others in Uganda, South Africa and Kenya showed that circumcision can reduce a man's risk of HIV infection through heterosexual sex by up to 60 percent. [They never fail to mention that factoid, do they?]

In the current study, the researchers found that, over two years, circumcised men were 39 percent less likely than their uncircumcised counterparts to report any type of penile injuries during sex.

This raises the possibility that lower injury risk is one reason that circumcision lowers the odds of HIV transmission, according to the researchers, led by Dr. Supriya D. Mehta of the University of Illinois at Chicago. [It also raises the possibility that circumcision makes men less likely to report (other) penile injury...]

Exactly why circumcision may protect against HIV during sex is unknown, Mehta and colleagues report in the Journal of Urology. There are a few theories: One is that, by reducing the amount of mucosal tissue exposed during sex, circumcision limits the virus' access to the body cells it targets. Another theory is that the thickened skin that forms around the circumcision scar helps block HIV from gaining entry.

But there is also a possible role for mild penile injuries -- cuts, scratches and tears in the skin that could serve as a portal of entry for HIV. In some past studies, uncircumcised men have reported higher rates of such injuries than circumcised men.

At the outset of the current trial, 64 percent of the men said they had sustained some form of penile injury during sex in the past six months -- most often general soreness, scratches, cuts or abrasions. Seventeen percent said they had bleeding. [Those figures are remarkably high - did they control for dry sex?]

Six months into the trial, that rate was on the decline. By year two, 31 percent of circumcised men said they'd had a sex-related penile injury in the past six months.

Men in the uncircumcised group also reported a reduction in injuries, though it was less significant -- with 42 percent saying they'd sustained a penile injury in the past six months. That decline, according to Mehta's team, is likely due to the general improvements both study groups showed in their sexual health practices -- including greater condom use and fewer sex partners.

[And the difference between those two figures is 11 percent. The reduction attributable to just going in the study - the Hawthorne effect - is three times the reduction attributable to circumcision.]

Men who said they had had multiple sex partners in the past month were more likely to report sex-related penile injuries than those who had been monogamous. On the other hand, condom use and the habit of washing the penis within an hour of having sex were both linked to decreased risks of penile soreness and other injuries.

Further studies, Mehta's team writes, should look at the role penile injuries may play in the transmission of HIV or other sexually transmitted diseases.

[Or perhaps they should look harder for confounding factors - and an explanation for the extraordinarily high rate of penile injuries in this sample.]

SOURCE: Journal of Urology, online May 17, 2010.

The study is:

J Urol. 2010 May 16.

Circumcision and Reduced Risk of Self-Reported Penile Coital Injuries: Results From a Randomized Controlled Trial in Kisumu, Kenya.

Mehta SD, Krieger JN, Agot K, Moses S, Ndinya-Achola JO, Parker C, Bailey RC.


PURPOSE: Injuries to the penis during intercourse represent a hypothesized mechanism by which uncircumcised men are at increased risk for HIV. There are no published, systematically collected data regarding mild penile coital trauma to our knowledge. We identified risks of self-reported penile coital injuries in men 18 to 24 years old in a randomized trial of circumcision to prevent HIV in Kisumu, Kenya.

MATERIALS AND METHODS: Each participant underwent standardized interview, medical history and physical examination at baseline, and 6, 12, 18 and 24 months after enrollment. Self-reported penile coital injuries were assessed at each visit, and were defined as penis feels sore during sex, penis gets scratches, cuts or abrasions during sex, and skin of the penis bleeds after sex. Generalized estimating equation analysis estimated odds ratios for penile coital injuries.

RESULTS: From February 2002 to September 2005, 2,784 participants were randomized. At baseline 1,775 (64.4%) men reported any coital injury including 1,313 (47.6%) soreness, 1,328 (48.2%) scratches, abrasions or cuts and 461 (16.7%) bleeding. On multivariable analysis coital injury risk was lower for circumcised than for uncircumcised men with soreness (OR 0.71, 95% CI 0.64-0.80), scratches/abrasions/cuts (OR 0.52, 95% CI 0.46-0.59), bleeding (OR 0.62, 95% CI 0.51-0.75) and any coital injury (OR 0.61, 95% CI 0.54-0.68). Other significant risks included increasing age, multiple recent sex partners, HSV-2 seropositivity and genital ulcers (p <0.05). Condom use, cleaning the penis soon after intercourse and being married/cohabiting were protective (p <0.05, each).

CONCLUSIONS: Self-reported penile coital injuries were common in these healthy young men. Circumcised men were at lower risk for coital injuries. Verifying penile coital injuries, the mechanism of acquisition and the association with HIV risk is needed.

June 6th, 2010, 15:20
Bailey and Moses must be desperate as well as foolish. We do not cut of parts of our body incase they will be injured.

June 6th, 2010, 16:57
Bailey and Moses must be desperate as well as foolish. We do not cut of parts of our body incase they will be injured.

Correction they have been desperate for years :D

June 7th, 2010, 01:24
Study: Circumcision may prevent sex-related penis injuries.

Circumcision IS a penis injury.

Thanks for posting. WTF are these men up to? 31% had been injured from sex in the past 6 months?

June 7th, 2010, 02:03
Why don't they just cut the whole thing off? That would reduce AIDS infection by up to 100%. And it would totally eliminate injuries of any kind, including getting caught in the zipper when peeing.

June 7th, 2010, 02:51
We seriously need to outlaw any further "study" that tries to legitimize genital mutilation.

Any further circumcision "studies" need to be ignored as are FGM "studies."

The WHO would NEVER recommend foot-binding or FGM based on any "study."

That this latest and obvious crap is even considered, that people even have the gall to publish it as legitimate "news" is outrageous.

No more genital mutilation studies.

June 7th, 2010, 06:31
It is really ridiculous study.

Still,they mentioned "may" word in their study result.

There are no demonstrable benefits & hygiene of male circumcision.