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Trends and Differences Among Three New Indicators of HIV Infection Progression
Qian An1, Ruiguang Song2, Angela Hernandez1
1Centers for Disease Control and Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Division of HIV/AIDS Prevention, HIV Incidence and Case Surveillance Branch, Atlanta, GA.
Objective:
This study proposes three indicators of, and assesses the disparities and trends in, the risk of HIV infection progression among people living with diagnosed HIV infection in the United States.
Methods:
Using data reported to national HIV surveillance through June 2012, we calculated the AIDS diagnosis hazard, HIV (including AIDS) death hazard, and AIDS death hazard for people living with diagnosed HIV infection for each calendar year from 1997 to 2010. We also calculated a stratified hazard in 2010 by age, race/ethnicity, mode of transmission, region of residence at diagnosis, and year of diagnosis.
Results:
The risk of HIV infection progression among people living with diagnosed HIV infection decreased significantly from 1997 to 2010. The risks of progression to AIDS and death in 2010 were higher among African Americans and people of multiple races, males exposed through injection drug use (IDU) or heterosexual contact, females exposed through IDU, people residing in the South at diagnosis, and people diagnosed in 2009 compared with white individuals, men who have sex with men, females with infection attributed to heterosexual contact, those residing in the Northeast, and those diagnosed in previous years, respectively. People aged 15-29 years had the highest AIDS diagnosis hazard in 2010.
Conclusion:
Continued efforts are needed to ensure early HIV diagnosis as well as initial linkage to and continued engagement in HIV medical care among all people living with HIV. Targeted interventions are needed to improve health-care and supportive services for those with worse health outcomes.
