Topic 18 TDSHS_HIV_AIDS_Epidemiology

Topic 18 TDSHS_HIV_AIDS_Epidemiology - Texas HIV/AIDS...

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Texas HIV/AIDS Epidemiology University of Texas November 18, 2009 1
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Outline Overview of HIV Surveillance in Texas HIV/AIDS Case Surveillance Data National State Local Supplemental HIV Surveillance 2
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HIV/AIDS Surveillance… …is the ongoing and systematic collection, analysis, interpretation, dissemination and evaluation of population-based information about persons infected with HIV or diagnosed with AIDS (CDC) 3
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Why is HIV/AIDS Surveillance Important? To understand the epidemiology and magnitude of the HIV/AIDS epidemic To monitor trends in affected populations To target HIV prevention and treatment services To guide the development of new interventions to HIV prevention To guide funding decisions for HIV/AIDS programs (e.g. Ryan White) 4
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Texas History of HIV/AIDS 1981 : AIDS first reported 1983 : Texas adds AIDS to list of reportable conditions 1993 : Low CD4 count added to AIDS case definition 5
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Texas History of HIV/AIDS 1996 : Highly Active Antiretroviral Therapy (HAART) introduced 1999: Texas implements HIV reporting by name and Enhanced Perinatal Surveillance 2003: NHBS implemented 2004 : Medical Monitoring Project implemented 6
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HIV/AIDS Case Surveillance Data Sources 7 Texas Reporting System National Reporting System (CDC) Local/Regional HIV/AIDS Surveillance Sites Corrections Provider Reports Laboratory Reports Registries (e.g. birth, death) Active Surveillance Public Health Follow-up
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Key HIV/AIDS Case Surveillance Data Collected Demographic Characteristics sex, race/ethnicity, age, residence Risk Opportunistic illnesses Virologic and immunologic status 8
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HIV/AIDS Case Surveillance Data HIV surveillance data only include persons who have been tested and reported and thus may not represent all persons who are infected 9
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Definitions Incident Cases : Number of new HIV infections per year Diagnosed Cases : Number of HIV cases diagnosed in a given year – a person may have been infected with HIV many years before being diagnosed Reported Cases : Number of HIV cases reported in a given year – a person may have been diagnosed in an earlier year Living Cases (prevalence): All persons know to be living with HIV/AIDS at a certain point in time, regardless of when they acquired their infection or were diagnosed 10
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USA: Reported Cases As of end year 2007, 1,051,875 AIDS cases have been reported in the United States Of these cases 7% were reported in Texas As of end year 2007, 328,103 HIV cases have been reported in the United States* Of these cases 8% were reported in Texas *Includes 47 states with name-based reporting as December 2007 11
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Cumulative Reported AIDS Cases: Top 5 States, 2007 50,694 72,828 109,524 148,949 181,461 New Jersey Texas Florida California New York 12 *Centers for Disease Control and Prevention. HIV/AIDS Surveillance Report, 2006 . Vol.
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This note was uploaded on 01/23/2010 for the course BIO 307D taught by Professor Moore during the Fall '09 term at University of Texas at Austin.

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Topic 18 TDSHS_HIV_AIDS_Epidemiology - Texas HIV/AIDS...

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