Featured Research

from universities, journals, and other organizations

Circumcision Not Associated With Reduced Risk Of HIV For Men Who Have Sex With Men

Date:
October 14, 2008
Source:
JAMA and Archives Journals
Summary:
An analysis of previous research indicates there is a lack of sufficient evidence that circumcision reduces the risk of human immunodeficiency virus infection or other sexually transmitted infections among men who have sex with men, according to a new article.

An analysis of previous research indicates there is a lack of sufficient evidence that circumcision reduces the risk of human immunodeficiency virus (HIV) infection or other sexually transmitted infections among men who have sex with men, according to a new article.

Randomized controlled trials (RCTs) conducted with men in Africa have shown that male circumcision reduces the likelihood of female-to-male transmission of HIV infection by 50 percent to 60 percent. Studies also suggest that male circumcision may protect heterosexual men against other sexually transmitted infections (STI), such as syphilis or chlamydial infection, according to background information in the article. Less is known about whether circumcision provides protection against HIV infection among men who have sex with men (MSM).

Gregorio A. Millett, M.P.H., of the Centers for Disease Control and Prevention, Atlanta, and colleagues performed a meta-analysis of 15 studies to examine the association of circumcision status with HIV infection and other STIs among MSM. The studies included a total of 53,567 MSM participants (52 percent of whom were circumcised).

The researchers found that the odds of being HIV-positive were nonsignificantly lower among MSM who were circumcised than uncircumcised. In contrast, a statistically significant protective association of circumcision with HIV infection was found for MSM studies conducted prior to the introduction of highly active antiretroviral therapy (HAART) in 1996. Of studies conducted after HAART, the association of circumcision and HIV infection was not statistically significant.

"A possible explanation for [these differences] may be related to an increase in the sexual risk behaviors of MSM after HAART. It has been well documented that beliefs that HAART limits HIV transmissibility are associated with increases in sexual risk behavior among MSM, and that the era since the advent of HAART has been defined by higher rates of sexual risk behaviors among MSM, outbreaks of STIs, and increasing rates of HIV infection," the authors write.

Among MSM who primarily engaged in insertive anal sex, the association between male circumcision and HIV was protective but not statistically significant. The STI analyses similarly revealed no statistically significant association by circumcision status among MSM.

"Taken together, these findings indicate insufficient evidence among available observational studies conducted with MSM of an association between circumcision and HIV infection or other STIs," the researchers write. "Additional studies are necessary to elucidate further the relationship between circumcision status and HIV infection or STIs among MSM."

Editorial: Circumcision and HIV Prevention Among Men Who Have Sex With Men - No Final Word

In an accompanying editorial, Sten H. Vermund, M.D., Ph.D., and Han-Zhu Qian, M.D., Ph.D., of Vanderbilt University School of Medicine, Nashville, Tenn., write that only future research can answer whether MSM should be circumcised to reduce their HIV risk.

"The meta-analysis by Millett et al is likely to be used by both advocates and detractors of clinical trial investment; some will argue the benefit is likely to be too modest to justify a multimillion dollar clinical trial while others will argue that only a clinical trial will answer this important HIV prevention question. Barriers to circumcision among heterosexual men include human rights issues, ethical and legal issues, high cost, fear of pain, safety concerns, availability of surgery services, and sexual risk compensation if men overrate their degree of protection and ongoing risk. As in other HIV prevention trials, circumcision would likely be insufficiently efficient to be universally effective in reducing HIV risk, and will have to be combined with other prevention modalities to have a substantial and sustained prevention effect."


Story Source:

The above story is based on materials provided by JAMA and Archives Journals. Note: Materials may be edited for content and length.


Cite This Page:

JAMA and Archives Journals. "Circumcision Not Associated With Reduced Risk Of HIV For Men Who Have Sex With Men." ScienceDaily. ScienceDaily, 14 October 2008. <www.sciencedaily.com/releases/2008/10/081007172820.htm>.
JAMA and Archives Journals. (2008, October 14). Circumcision Not Associated With Reduced Risk Of HIV For Men Who Have Sex With Men. ScienceDaily. Retrieved September 21, 2014 from www.sciencedaily.com/releases/2008/10/081007172820.htm
JAMA and Archives Journals. "Circumcision Not Associated With Reduced Risk Of HIV For Men Who Have Sex With Men." ScienceDaily. www.sciencedaily.com/releases/2008/10/081007172820.htm (accessed September 21, 2014).

Share This



More Health & Medicine News

Sunday, September 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Sierra Leone in Lockdown to Control Ebola

Sierra Leone in Lockdown to Control Ebola

AP (Sep. 21, 2014) Sierra Leone residents remained in lockdown on Saturday as part of a massive effort to confine millions of people to their homes in a bid to stem the biggest Ebola outbreak in history. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Sierra Leone's Nationwide Ebola Curfew Underway

Sierra Leone's Nationwide Ebola Curfew Underway

Newsy (Sep. 20, 2014) Sierra Leone is locked down as aid workers and volunteers look for new cases of Ebola. Video provided by Newsy
Powered by NewsLook.com
Changes Found In Brain After One Dose Of Antidepressants

Changes Found In Brain After One Dose Of Antidepressants

Newsy (Sep. 19, 2014) A study suggest antidepressants can kick in much sooner than previously thought. Video provided by Newsy
Powered by NewsLook.com
Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins