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HIV Epidemiology


HIV Epidemiology

Contact Information
Los Angeles County
Department of Public Health
HIV Epidemiology, DHSP                       600 S. Commonwealth Ave. Suite 1920
Los Angeles, CA 90005
Phone: (213) 351-8196
Fax: (213) 487-9386


        LAC's ZIP code level data/maps on HIV

HIV Epidemiology - Fact Sheet on HIV prevalence and Risk Behaviors in Los Angeles County Sexually Transmitted Disease (STD) Clinics, 1997-1998
  • Confidential HIV testing and counseling is routinely offered to clients seeking sexually transmitted disease services in Los Angeles County.
  • Of all clients offered HIV tests during a clinic visit, approximately 70% of clients visiting 4 sentinel surveillance STD sites accept a confidential HIV test.
  • Prevalence of HIV infection among clients accepting confidential HIV tests is 0.9% in 1997-1998. The range across 4 separate STD clinic sites is 0.4% to 1.8%.
  • An unlinked survey of all clients receiving routine syphilis screening indicates HIV prevalence of 1.5% for all STD clients (unlinked survey includes confidential HIV testers plus clients who decline confidential testing services). The range across 4 separate clinic sites is 0.8% to 3.4%.
  • Overall prevalence of HIV infection is four times higher in male clients than in female clients (2.2% versus 0.5%).
  • About half of all HIV-positive results are among men who have sex with men.
  • Clients refusing confidential HIV test services are 60% more likely to receive an STD diagnosis than clients accepting confidential HIV tests.
  • Only 44% of people requesting a confidential HIV test return to the clinic to receive test results. The range across 4 separate STD clinic sites is 29% to 62%.
  • HIV prevalence varies across race/ethnic groups visiting the clinics. 1.5% of Latinos, 1.4% of African Americans, 2.2% of Caucasians, 0.7% of Asian/Pacific Islanders, 0% of Native Americans, and 4.1% of Other are HIV-positive.
  • Acceptance of confidential HIV testing services varies for different race/ethnic groups as well. 80% of Latinos, 67% of African Americans, 80% of Caucasians, 80% of Asian/Pacific Islanders, 81% of Native Americans, and 75% of Other accept confidential tests during their clinic visit.
  • Gonorrhea and urethritis are the most frequently diagnosed STDs among HIV-positive clients.
  • The two most commonly stated reasons for refusing a confidential HIV test are "I already know my HIV status" and "I donít think Iím at risk for getting AIDS."

Source: HIV Epidemiology Program, LACDHS, 213-351-8654, 11/98

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