viernes, 23 de septiembre de 2016

HIV Testing Experience Before HIV Diagnosis Among Men Who Have Sex with Men — 21 Jurisdictions, United States, 2007–2013 | MMWR

HIV Testing Experience Before HIV Diagnosis Among Men Who Have Sex with Men — 21 Jurisdictions, United States, 2007–2013 | MMWR



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MMWR Weekly
Vol. 65, No. 37
September 23, 2016
 
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HIV Testing Experience Before HIV Diagnosis Among Men Who Have Sex with Men — 21 Jurisdictions, United States, 2007–2013

Laurie Linley, MPH1; Qian An, PhD1; Ruiguang Song, PhD1; Eduardo Valverde, DrPH1; Alexandra M. Oster, MD1; Xiaona Qian, MS1; Angela L. Hernandez, MD1 (View author affiliations)
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Summary

What is already known about this topic?

Because subgroups of men who have sex with men (MSM) are at high risk for human immunodeficiency virus (HIV) infection, CDC has recommended that sexually active MSM be tested at least annually for HIV to foster early detection of HIV infection and link infected persons to clinical and prevention services to improve health outcomes and prevent HIV transmission.
What is added by this report?

CDC’s National HIV Surveillance System data suggest that more MSM with HIV diagnosed in the 21 U.S. jurisdictions included in the analysis might be receiving testing annually, as indicated by the increasing percentage of MSM who had a negative HIV test in the 12 months before diagnosis, from 48% in 2007 to 56% in 2013 (among those with a known date of previous negative HIV test).
What are the implications for public health practice?

Although there is evidence of increased HIV testing among MSM, there is still a need to promote annual HIV testing, particularly among subgroups at high risk, to increase early detection of HIV infection and to provide rapid linkage to care to improve health among infected persons and reduce their risk for transmission.
Laurie Linley, MPH1; Qian An, PhD1; Ruiguang Song, PhD1; Eduardo Valverde, DrPH1; Alexandra M. Oster, MD1; Xiaona Qian, MS1; Angela L. Hernandez, MD1 (View author affiliations)
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Gay, bisexual, and other men who have sex with men (MSM) continue to be the population most affected by human immunodeficiency virus (HIV) in the United States. In 2014, 81% of diagnoses of HIV infection were among adult and adolescent males, and among these, 83% of infections were attributable to male-to-male sexual contact (1). Since 2006, CDC has recommended HIV testing at least annually for sexually active MSM to foster early detection of HIV infection and prevent HIV transmission (2,3). Several initiatives and strategies during the past decade have aimed to expand HIV testing among MSM to increase early diagnosis and treatment and reduce transmission. To better understand HIV testing patterns among MSM with diagnosed HIV infection, CDC analyzed data for 2007–2013 from jurisdictions conducting HIV incidence surveillance as part of CDC’s National HIV Surveillance System (NHSS). Findings from this analysis suggest that increasing percentages of MSM have had a negative HIV test during the 12 months before diagnosis (48% in 2007, 56% in 2013, among those with a known date of previous negative HIV test), indicating a trend toward increased HIV testing and earlier HIV diagnosis among persons most at risk for HIV.
Data from the NHSS were used to assess trends in HIV testing patterns among MSM with HIV infection diagnosed during 2007–2013. HIV case surveillance data and supplemental information, including testing history data from patient and provider reports, were collected by 21 jurisdictions participating in HIV incidence surveillance (18 states, two cities, and the District of Columbia)* and reported to NHSS through December 31, 2015 (4). This analysis included males aged ≥13 years with HIV infection attributed to male-to-male sexual contact. Testing history data indicative of a negative HIV test, a date of most recent negative HIV test, or the number of negative HIV tests during the 2 years before diagnosis were used to categorize MSM as having a previous negative HIV test before diagnosis. The date of most recent negative HIV test was used to establish the number of months between the last negative HIV test and HIV infection diagnosis. The estimated annual percent change (EAPC) and the associated 95% confidence interval (CI) were used to assess trends from 2007 to 2013 in the proportion of MSM with a previous negative HIV test among those with a testing history, and the proportion of MSM with a negative HIV test ≤12 months before HIV diagnosis among those who had information on the date of last negative HIV test, by age group and race/ethnicity (black/African American [black], Hispanic/Latino [regardless of race], white, or other race).
In the 21 jurisdictions, the number of MSM aged ≥13 years with diagnosed HIV infection attributed to male-to-male sexual contact was 16,788 in 2007 and 15,951 in 2013 (Table 1). The percentage of these MSM who had any testing history data was 51% in 2007 and 69% in 2013. Overall, among MSM with testing history data, the percentage who had a previous negative HIV test increased significantly from 70% in 2007 to 74% in 2013 (EAPC = 1.15, 95% CI = 0.92–1.38). By race/ethnicity, significant increases from 2007 to 2013 occurred for black MSM (from 64% to 73%; EAPC = 2.67, 95% CI = 2.24–3.11), for white MSM (from 75% to 77%; EAPC = 0.68, 95% CI = 0.32–1.05), and MSM of other races (from 73% to 77%; EAPC = 1.34, 95% CI = 0.45–2.24). By age group, significant increases from 2007 to 2013 occurred among MSM of all age groups except those aged ≥55 years. Although the trend from 2007 to 2013 in the percentage with a previous negative HIV test among Hispanic/Latino MSM was not significant overall, there was a significant increase among Hispanic/Latino MSM aged 25–34 years. Among black MSM, significant increases were observed for all age groups. Among white MSM, significant increases were observed among those aged 35–44 and 45–54 years.
Among MSM with a known date of negative HIV test before HIV diagnosis (30% of all MSM in 2007 and 47% in 2013), the trend in the percentage of those with a negative test ≤12 months before diagnosis increased overall from 48% in 2007 to 56% in 2013 (EAPC = 2.34, 95% CI = 1.89–2.78) (Table 2). By race/ethnicity, from 2007 to 2013 the percentage of MSM with a negative test ≤12 months before HIV diagnosis increased among blacks (from 48% to 57%; EAPC = 2.49, 95% CI = 1.73–3.26), Hispanics/Latinos (from 51% to 57%; EAPC = 1.87, 95% CI = 1.03–2.72), and whites (from 46% to 54%; EAPC = 2.69, 95% CI = 1.88–3.51). By age group, the percentage with a negative test ≤12 months before HIV diagnosis increased significantly for MSM among all age groups except for those aged ≥55 years (Figure). Among black MSM, significant increases were observed among those aged 13–24, 25–34, and 35–44 years; among Hispanics/Latinos, increases were only observed among those aged 25–34 and 45–54 years; among whites, increases were observed among those aged 25–34, 35–44, and 45–54 years (Table 2).
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Discussion

These results indicate that during 2007–2013, an increasing percentage of MSM with HIV diagnosed in the jurisdictions included in the analysis were tested for HIV before diagnosis. The results also suggest more MSM might be testing annually, as indicated by the increasing percentage of those tested in the 12 months before diagnosis, which could facilitate diagnosis sooner after infection. Although the findings in this report only assess the previous HIV testing pattern among those MSM with diagnosed HIV infections, the trend in HIV testing is consistent with earlier findings of an increase in the percentage of MSM tested in the previous 12 months, from 63% in 2008 to 67% in 2011 (5). The findings in this report differ slightly from previous reports from national surveys of the general U.S. population that conducted subgroup analyses of MSM; those analyses found only modest or nonsignificant increases in HIV testing among MSM before and after the 2006 publication of CDC guidelines, although these surveys might have had limited power to detect changes among this subgroup because of small sample sizes of MSM (6,7).
The findings in this report are subject to at least three limitations. First, results are based on data from only 21 jurisdictions that are not representative of the entire United States; however, these accounted for 73% of reported HIV cases in the United States during 2013. Second, approximately one half to two thirds of MSM with HIV diagnosed during the analysis period had testing history data available. Finally, testing history data obtained from self-reports or chart abstraction could be biased, but the potential impact of this is unclear.
Since the release of the 2006 CDC HIV testing recommendations, several national initiatives and strategies have aimed to raise general awareness of HIV, increase HIV testing, and strengthen HIV prevention for those most affected. The National HIV/AIDS Strategy, released in 2010, established a framework for intensified HIV prevention efforts in the communities where HIV is most concentrated (particularly among MSM, persons who are black or Hispanic/Latino, and persons who inject drugs) (8). To achieve National HIV/AIDS Strategy goals, CDC funds state and local health departments and community-based organizations across the United States for expanded HIV testing and HIV prevention activities and directs resources to disproportionately affected populations, including MSM.§ CDC has also implemented programs such as the MSM Testing Initiative, which was intended to scale up HIV testing among blacks and Hispanics/Latinos to identify those HIV-infected MSM previously unaware of their infections and link them to care, and the Expanded Testing Initiative, which was implemented to support HIV testing among MSM of all races and ethnicities, as well as persons who inject drugs. Other strategies include the Act Against AIDS campaign, a national campaign launched in 2009 by CDC and the White House that focuses on raising HIV awareness among all persons in the United States and reducing the risk for infection among the most affected populations, including MSM, blacks, Hispanics/Latinos, and other communities at increased risk.
Findings from this analysis indicate that these strategies and programs might be reaching the intended groups and leading to increased HIV testing and earlier HIV diagnosis. However, there are still racial/ethnic differences; for example, a lower percentage of black and Hispanic/Latino MSM had prior negative HIV tests than did whites. Although testing facilitates early detection of HIV, given the large numbers of MSM still acquiring HIV (many after having a negative HIV test), enhanced HIV testing efforts might incorporate provision of biomedical prevention interventions such as preexposure prophylaxis for persons testing negative but still at risk for infection to reduce HIV acquisition (9). Preexposure prophylaxis, which involves taking antiretroviral medications before becoming exposed to HIV, can substantially reduce the risk for HIV infection in persons at high risk for infection.**
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Corresponding author: Laurie Linley, LLinley@cdc.gov, 404-639-2086.
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1Division of HIV/AIDS Prevention, National Center for HIV, Viral Hepatitis, STD, and TB Prevention, CDC.
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References

  1. CDC. HIV surveillance report, 2014; vol. 26. Atlanta, GA: US Department of Health and Human Services, CDC; 2015. http://www.cdc.gov/hiv/library/reports/surveillance/
  2. Branson BM, Handsfield HH, Lampe MA, et al. . Revised recommendations for HIV testing of adults, adolescents, and pregnant women in health-care settings. MMWR Recomm Rep 2006;55(No. RR-14). PubMed
  3. Workowski KA, Berman S. Sexually transmitted diseases treatment guidelines, 2010. MMWR Recomm Rep 2010;59(No. RR-12). PubMed
  4. CDC. Estimated HIV incidence in the United States, 2007–2010. HIV surveillance supplemental report 2012;17(No. 4). Atlanta, GA: US Department of Health and Human Services, CDC; 2012.http://www.cdc.gov/hiv/library/reports/surveillance/index.html
  5. Cooley LA, Oster AM, Rose CE, Wejnert C, Le BC, Paz-Bailey G; NHBS Study Group. Increases in HIV testing among men who have sex with men—National HIV Behavioral Surveillance System, 20 U.S. Metropolitan Statistical Areas, 2008 and 2011. PLoS One 2014;9:e104162. CrossRef PubMed
  6. Woodring JV, Kruszon-Moran D, Oster AM, McQuillan GM. Did CDC’s 2006 revised HIV testing recommendations make a difference? Evaluation of HIV testing in the US household population, 2003–2010. J Acquir Immune Defic Syndr 2014;67:331–40. CrossRef PubMed
  7. Kwan CK, Rose CE, Brooks JT, Marks G, Sionean C. HIV testing among men at risk for acquiring HIV infection before and after the 2006 CDC recommendations. Public Health Rep 2016;131:311–9. CrossRef PubMed
  8. Office of National AIDS Policy. National HIV/AIDS strategy. Washington, DC: Office of National AIDS Policy; 2010. https://www.whitehouse.gov/administration/eop/onap/nhas
  9. CDC. Preexposure prophylaxis for the prevention of HIV infection in the United States—2014: a clinical practice guideline. Atlanta, GA: US Department of Health and Human Services, CDC; 2014. https://www.cdc.gov/hiv/pdf/guidelines/PrEPguidelines2014.pdf
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* The 21 jurisdictions contributing data to this analysis were the states of Alabama, Arizona, California, Colorado, Connecticut, Florida, Indiana, Louisiana, Massachusetts, Michigan, Mississippi, New Jersey, New York, North Carolina, South Carolina, Texas, Virginia, and Washington; the cities of Chicago, Illinois, and Philadelphia, Pennsylvania; and the District of Columbia.
 In 2015, The National HIV/AIDS Strategy: Updated to 2020 was released and is available at https://www.aids.gov/federal-resources/national-hiv-aids-strategy/nhas-update.pdf.
§ Additional information about CDC’s activities and programs to address the health and well-being of MSM, including programs aimed to expand routine HIV testing, is available athttp://www.cdc.gov/msmhealth/msm-programs.htm.

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