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Read Now: News and Research From IDWeek 2014

Regular Testing and Counseling Lower Sexual Infection Rate in Gays With HIV

August 2012

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Getting tested for sexually transmitted infections (STIs) every 6 months and receiving brief risk counseling from HIV providers lowered the rate of new STIs in gay and bisexual men with HIV.1 In this study in four U.S. cities, only 11% of detected STIs caused signs or symptoms noticed by the infected person: That finding underlines the importance of regular testing for STIs in sexually active people, because many STIs cause no signs or symptoms that indicate infection.

Most people who become infected with HIV get infected during sex. If an HIV-positive person has unprotected sex, that person runs a risk of picking up another STI, such as chlamydia, gonorrhea, or syphilis. Having an STI can raise an HIV-positive person's viral load and can make it easier for that person to infect someone else with their HIV.

Gay and bisexual men in the United States and other countries often run a high risk of infection with HIV and other STIs because many men have multiple sex partners, have sex without condoms, and do other things that make picking up an STI more likely (such as drink alcohol or use drugs before having sex).

The Centers for Disease Control and Prevention (CDC) advises HIV providers to talk to patients regularly about how to avoid STIs. The CDC also says sexually active people should get tested regularly for STIs, even if they have no signs or symptoms of infection. An STI may cause no visible sores or rashes and may not make a person feel sick. So regular testing is often the only way to detect STIs.

One brief STI counseling approach recommended by the CDC is called Partnership for Health.2,3 CDC researchers and other HIV experts conducted this study to see if Partnership for Health could lower the rate of new STIs in HIV-positive gay and bisexual men in the United States.


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How the Study Worked

The study involved gay and bisexual men who were members of the SUN Study. The SUN Study is an ongoing study of HIV-positive men and women in Denver, Minneapolis, Providence, and St. Louis. SUN Study members come for check-ups every 6 months. At these visits everyone gets tested for STIs and everyone completes a computer-assisted interview about STI risk factors and habits like smoking and recreational drug use.

The new study focused on HIV-positive men who said they had had sex with another man before joining the SUN Study. All these men were tested for gonorrhea, chlamydia, and syphilis when they entered the SUN Study and every 6 months after that. The men also reported possible signs or symptoms of STIs whenever they got tested.

All these men and their HIV providers took part in the Partnership for Health program. A full description of this program can be read at the link following reference 2 below. Briefly, whenever people visit the HIV clinic they see messages about safer sex behavior in posters, brochures, and flyers. During each person's health check-up, their HIV provider reinforces these messages. HIV providers and all other clinic staff receive training in the Partnership for Health program.

SUN Study participants get tested for STIs every 6 months. The researchers who ran this STI study analyzed data from two SUN Study visits 12 months apart. The first study visit was the one at which the study participant was first exposed to the Partnership for Health program. The second study visit was the one that took place 12 months after the first study visit.

Finally, the researchers compared the number of new STIs at the first study visit with the number at the second study visit. They also compared sex behaviors at those two visits.


What the Study Found

The study included 216 gay or bisexual HIV-positive men who had complete STI testing data and risk behavior data available from the first study visit and the second study visit (12 months after the first). At the first visit, these men had a median age of 44. Most men (77%) were white, 11% were black, and 11% were Hispanic.

Median CD4 count when the study began stood at 511. Of the 216 men studied, 179 (83%) were taking combination antiretroviral therapy and 182 (84%) had an undetectable viral load. When the study started, 163 men (75%) said they were sexually active. Among the 53 men not sexually active when the study began, 28 (53%) became sexually active during the 12-month study period. Only 3% of men who were sexually active when the study began were not sexually active 12 months later.

Seventy-eight men (36%) said they had unprotected anal or vaginal intercourse at some point. Eighty-two men (38%) had more than four alcoholic drinks in the past month, and 81 (38%) had used any drug (not counting marijuana), 67 (31%) used inhaled nitrites, 46 (21%) used an erection drug (such as Viagra), and 16 (7%) used methamphetamine.

Almost half of the men in this study -- 103 or 48% -- said they had depression. (For more on depression, see the article in this issue, "Depression and Wider Waist Linked to Sleeping Problem in People With HIV.")

The overall rate of newly detected STIs fell from 8.8% at the first study visit to 4.2% at the second study months -- 12 months after men started participating in the Partnership for Health program (Figure 1). In other words, the new STI rate fell by half over the course of the study, as providers engaged HIV-positive men in discussing safer sex, and as men continued regular STI testing.


New STI Rates With Prevention Program for Gay Men

Figure 1. Rates of new sexually transmitted infections (STIs) fell in HIV-positive men who had STI testing every 6 months and who joined a risk prevention program. Only 11% of the STIs detected during the 12-month study interval (far right cone) caused signs or symptoms that the man noticed.


The rate of newly detected STIs in the anus and rectum fell from 6.9% at the first study visit to 2.8% at the second study visit 12 months later. In other words, the rate of this kind of STI fell by more than half during the study.

Of the 28 new STIs detected during the study, only 3 (11%) had noticeable signs or symptoms. So 25 of these new STIs would not have been detected without regular STI testing of all these men, and those undetected STIs could have been transmitted to other people.

Despite these improvements in STI rates, rates of anal or vaginal sex without a condom remained about the same -- 36% at the first study visit and 38% at the second study visit 12 months later. The rate of condom-free receptive or insertive anal intercourse rose from 19% to 25% with HIV-positive partners. But that rate did not change with HIV-negative partners or with partners whose HIV status was not known.

Self-reported rates of alcohol use or drug use did not change from the first to the second study visit.

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This article was provided by The Center for AIDS. It is a part of the publication HIV Treatment ALERTS!. Visit CFA's website to find out more about their activities and publications.
 
See Also
Fact Sheet: HIV/AIDS and Young Men Who Have Sex With Men

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