The Open AIDS Journal


ISSN: 1874-6136 ― Volume 11, 2017

Estimating the Population Size of Men Who Have Sex with Men in the United States to Obtain HIV and Syphilis Rates§



David W Purcell*, 1, Christopher H Johnson 1, Amy Lansky 1, Joseph Prejean 1, Renee Stein 1, Paul Denning 1, Zaneta Gau11, Hillard Weinstock 1, John Su 2, Nicole Crepaz 1
1 Division of HIV/AIDS Prevention, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, Center for Disease Control and Prevention, Atlanta, GA, USA
2 Divison of STD Prevention, National Center for HIV, Viral Hepatitis, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA

Abstract

Background:

CDC has not previously calculated disease rates for men who have sex with men (MSM) because there is no single comprehensive source of data on population size. To inform prevention planning, CDC developed a national population size estimate for MSM to calculate disease metrics for HIV and syphilis.

Methods:

We conducted a systematic literature search and identified seven surveys that provided data on same-sex behavior in nationally representative samples. Data were pooled by three recall periods and combined using meta-analytic procedures. We applied the proportion of men reporting same-sex behavior in the past 5 years to U.S. census data to produce a population size estimate. We then calculated three disease metrics using CDC HIV and STD surveillance data and rate ratios comparing MSM to other men and to women.

Results:

Estimates of the proportion of men who engaged in same-sex behavior differed by recall period: past year = 2.9% (95%CI, 2.6–3.2); past five years = 3.9% (3.5–4.4); ever = 6.9% (5.1–8.6). Rates on all 3 disease metrics were much higher among MSM than among either other men or women (38 to 109 times as high).

Conclusions:

Estimating the population size for MSM allowed us to calculate rates for disease metrics and to develop rate ratios showing dramatically higher rates among MSM than among other men or women. These data greatly improve our understanding of the disproportionate impact of these diseases among MSM in the U.S. and help with prevention planning.

Keywords: Prevalence of same-sex behavior among men, MSM population size, HIV rates, syphilis rates..


Article Information


Identifiers and Pagination:

Year: 2012
Volume: 6
Issue: Suppl 1
First Page: 98
Last Page: 107
Publisher Id: TOAIDJ-6-98
DOI: 10.2174/1874613601206010098

Article History:

Received Date: 26/4/2011
Revision Received Date: 18/8/2011
Acceptance Date: 20/9/2011
Electronic publication date: 7/9/2012
Collection year: 2012

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© Purcell et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.


* Address correspondence to this author at the Division of HIV/AIDS Prevention, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, Center for Disease Control and Prevention, Atlanta, GA, USA; Tel: 404-639-1934; Fax: 404-639-1950; E-mail: dpurcell@cdc.gov


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