Skip Navigation LinksHome > April 15, 2002 - Volume 29 - Issue 5 > HIV Seroincidence Among Patients at Clinics for Sexually Tra...
JAIDS Journal of Acquired Immune Deficiency Syndromes:
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HIV Seroincidence Among Patients at Clinics for Sexually Transmitted Diseases in Nine Cities in the United States.

Weinstock, Hillard; Dale, Monica; Gwinn, Marta; Satten, Glen A.; Kothe, Denise; Mei, Joanne; Royalty, Janet; Linley, Laurie; Fridlund, Carol; Parekh, Bharat; Rawal, Bhupat D.; Busch, Michael P.; Janssen, Robert S.

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Abstract

Summary: Although the numbers of newly reported diagnoses of AIDS decreased in the 1990s, it is not clear whether they reflect a decreasing number of new HIV infections. Direct measurement of HIV incidence through follow-up cohort studies is difficult and costly. We estimated HIV incidence and trends in incidence among men who have sex with men (MSM) and heterosexual men and women at clinics for sexually transmitted diseases (STDs) by using a recently developed serologic testing algorithm that requires only a single blood specimen. Cross-sectional anonymous serosurveys were conducted at 13 STD clinics in nine cities in the United States from 1991 through 1997. Before anonymous HIV testing, demographic and clinical information was abstracted. Of 129,774 specimens tested, 362 (0.28%) were from persons estimated to be recently infected. Incidence among MSM was 7.1% (95% confidence interval (CI): 4.8-10.3), 14 times higher than that among heterosexuals, which was 0.5% (CI: 0.4- 0.7). Incidence among MSM and heterosexuals remained unchanged during the time studied. Decreasing rates of new AIDS diagnoses in the 1990s do not reflect stable rates of new HIV infections among MSM and heterosexual patients attending these clinics.

(C) 2002 by Lippincott Williams & Wilkins

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