Acceptability of microbicides and other new prevention technologies among MSM in Greater Buenos Aires, Argentina

Published: July 19, 2011

Background
Argentina has a concentrated HIV epidemic, in which MSM
transmission represented 35.9% between 2007 and 2009.
New alternatives for HIV and STI prevention are necessary for this
high-risk group, such as microbicides and pre- and post-exposure
prophylaxis.

Methods
The objective of this study was to identify factors related to the
acceptability and willingness to use new prevention methods among
MSM. 226 individuals (56 HIV+) were surveyed through an online
questionnaire. The survey included the following variables:
demographics, perception of HIV-risk, HIV status, condom use, use
of lubricants, rectal douching, rectal products and pre and postexposure
prophylaxis; sexual practices, HIV-related knowledge and
psychological aspects (locus of control and attitudes towards
health).

Results
Participants were between 18 and 70 years old (M= 31,72; DT=
10,28). All completed secondary school or higher level of education.
Most participants (87.2%) have been tested for HIV and 24.7% were
HIV+. With a steady partner, 22.4% MSM(HIV?)- and 42.6%
MSM(HIV?)+ always use condom. With casual partners, 62.9%
MSM(HIV?)- and 55.3% MSM(HIV?)+ always use condom. If they
had the opportunity, 65% of the sample would use a 60% effective
microbicide with a condom next time they would have intercourse,
and 17.7% would use just a microbicide. Only 2.6% have used preor
post-exposure prophylaxis and 84.7% will be willing to use them
in the future. There were not significant differences in acceptability
of these methods by age or HIV status.

Conclusion
Regular use of condom is more often with casual partners, but in
general more than half of the sample does not use condom
frequently. Most participants are willing to use microbicides with
condom. Pre- or post-exposure prophylaxis is a more acceptable
method of prevention among this population.

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