Featured Research

from universities, journals, and other organizations

Circumcision Reduces The Risk Of HIV Infection In Heterosexual US Men

Date:
December 29, 2008
Source:
Infectious Diseases Society of America
Summary:
A new US study has found that being circumcised significantly reduced the risk of HIV infection in heterosexual African-American men known to have been exposed to the virus. The findings of the new study, along with similar results from other studies, suggest that circumcision may protect other heterosexual males in the US.

A new U.S. study has found that being circumcised significantly reduced the risk of HIV infection in heterosexual African American men known to have been exposed to the virus. The findings complement those of recently reported clinical trials in Africa, where interventional use of adult male circumcision similarly reduced the risk of HIV infection in heterosexual men.

Related Articles


The findings of the new study, along with similar results from other studies, suggest that circumcision may protect other heterosexual males in the U.S. The promising new findings are reported in the January 1 issue of The Journal of Infectious Diseases, now available online.

Lee Warner, PhD, MPH, and colleagues at the Centers for Disease Control and Prevention (CDC) and the Johns Hopkins University School of Medicine studied the records of more than 26,000 African American men who had had HIV testing during visits to two Baltimore, Maryland, STD clinics from 1993 to 2000. The subjects selected for the study said that they did not inject drugs and had sex only with women. Their visits to the clinics were classified as involving known HIV exposure if there had been a recent notification of such exposure by a sex partner or by a clinic’s disease intervention specialists; clinic visits for other reasons were classified as involving unknown HIV exposure. By these criteria, the investigators found 394 visits with known exposure and 40,177 visits with unknown exposure.

In visits by men with known HIV exposure, being circumcised was associated with a 51 percent reduction in HIV prevalence (10.2 percent of circumcised men vs. 22.0 percent of uncircumcised men). In contrast, HIV prevalence did not significantly differ in circumcised compared to uncircumcised men with unknown HIV exposure (2.5 percent vs 3.3 percent).

The investigators noted that three other U.S.-based studies had previously suggested that circumcision may be associated with reduced HIV risk, but the findings were limited by small sample size or extremely low HIV prevalence and did not achieve statistical significance. Indeed, HIV prevalence in the United States is very low (about 0.4 percent), and the proportion of circumcised adult males is high (about 80 percent), which could make it hard for conventional observational studies (i.e., studies that are not clinical trials) to discern whether circumcision actually has a protective effect. By focusing on patients who had documented exposure to an HIV-infected female partner, the current study was able to reveal that there was indeed a protective effect. This approach, the investigators said, “represents a significant methodological advancement over most previous observational studies.”

In a separate editorial on the topic, Ronald H. Gray, MBBS, MSc, of Johns Hopkins University, pointed out that circumcision may be especially important for minority U.S. populations, including Hispanic as well as African American men—subgroups most at risk for HIV infection. He also noted that the American Academy of Pediatrics has thus far not recommended routine neonatal circumcision, and that Medicaid does not cover the procedure. “It is to be hoped,” he said, “that the paper by Warner et al., in conjunction with the weight of evidence from international studies, will persuade the Academy to recognize the public health importance of this surgery for prevention of HIV in minority U.S. populations.”


Story Source:

The above story is based on materials provided by Infectious Diseases Society of America. Note: Materials may be edited for content and length.


Cite This Page:

Infectious Diseases Society of America. "Circumcision Reduces The Risk Of HIV Infection In Heterosexual US Men." ScienceDaily. ScienceDaily, 29 December 2008. <www.sciencedaily.com/releases/2008/12/081217123819.htm>.
Infectious Diseases Society of America. (2008, December 29). Circumcision Reduces The Risk Of HIV Infection In Heterosexual US Men. ScienceDaily. Retrieved January 31, 2015 from www.sciencedaily.com/releases/2008/12/081217123819.htm
Infectious Diseases Society of America. "Circumcision Reduces The Risk Of HIV Infection In Heterosexual US Men." ScienceDaily. www.sciencedaily.com/releases/2008/12/081217123819.htm (accessed January 31, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, January 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

CDC: Get Vaccinated for Measles

CDC: Get Vaccinated for Measles

Reuters - US Online Video (Jan. 30, 2015) The CDC is urging people to get vaccinated for measles amid an outbreak that began at Disneyland and has now infected more than 90 people. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Obama To Outline New Plan For Personalized Medicine

Obama To Outline New Plan For Personalized Medicine

Newsy (Jan. 30, 2015) President Obama is expected to speak with drugmakers Friday about his Precision Medicine Initiative first introduced last week. Video provided by Newsy
Powered by NewsLook.com
NFL Concussions Down; Still on Parents' Minds

NFL Concussions Down; Still on Parents' Minds

AP (Jan. 30, 2015) The NFL announced this week that the number of game concussions dropped by a quarter over last season. Still, the dangers of the sport still weigh on players, and parents&apos; minds. (Jan. 30) Video provided by AP
Powered by NewsLook.com
U.S. Wants to Analyze DNA from 1 Million People

U.S. Wants to Analyze DNA from 1 Million People

Reuters - US Online Video (Jan. 30, 2015) The U.S. has proposed analyzing genetic information from more than 1 million American volunteers to learn how genetic variants affect health and disease. Rough Cut (no reporter narration). Video provided by Reuters
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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