Diagnoses of HIV infection among adults aged 50 years and older in the United States and dependent areas 2011–2016
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Diagnoses of HIV infection among adults aged 50 years and older in the United States and dependent areas 2011–2016

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      The 2016 HIV Surveillance Report, published by the Centers for Disease Control and Prevention (CDC), indicated that the annual number and rate of diagnoses of HIV infection in the United States from 2011 through 2015 decreased. Persons aged 50 years and older accounted for 17% of all diagnoses in 2016 and for 47% of persons living with diagnosed HIV infec- tion in the United States at the end of 2015 [1].

      Persons aged 50 years and older account for a sub- stantial number of HIV infections. Understanding the burden of HIV among different subgroups of older persons can help HIV programs to focus on popula- tions and areas at greatest need for HIV prevention, treatment, and care services.

      This surveillance supplemental report complements the 2016 HIV Surveillance Report by presenting addi- tional data on persons aged 50 years and older in the United States and 6 U.S. dependent areas. In this report, the term older refers to adults aged 50 years and older. Numbers and rates of diagnoses of HIV infection during 2011–2016 are included from all 50 states, the District of Columbia, and 6 U.S. dependent areas (American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, the Republic of Palau, and the U.S. Virgin Islands).

      This volume of the HIV Surveillance Supplemental Report marks the transition to presenting diagnosis and prevalence data without statistical adjustments for delays in reporting of cases to CDC. CDC periodically assesses the portfolio of the National HIV Surveil- lance System (NHSS) to determine whether methods and efficiencies in data collection and analysis meet the information needs of the nation. In determining that adjustments for reporting delays were no longer necessary, CDC considered improvements in data quality as a result of the following: availability of additional case information; shorter time for process- ing duplicates from multiple states; and a better sys- tem for national data processing. CDC will continue to statistically adjust transmission category data by using multiple imputation techniques to account for missing transmission category information in cases reported to CDC. (See Technical Notes for information on multi- ple imputation.)

      In previous reports, prevalence data presented by jurisdiction or region were based on residence at HIV diagnosis; however, information on residence at diag- nosis may not reflect a person’s current residence. In this report, prevalence data presented by jurisdiction, region, or population of area of residence are based on a person’s most recent known address at year-end of the specified year.

      Suggested citation: Centers for Disease Control and Prevention. Diagnoses of HIV infection among adults aged 50 years and older in the United States and dependent areas, 2011–2016. HIV Surveillance Supplemental Report 2018;23(No. 5). http://www.cdc.gov/hiv/library/reports/hiv- surveillance.html. Published August 2018. Accessed [date].


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