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June 29, 2007 / 56(25);634 |
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Notice to Readers: Publication
of Revised HIV/AIDS Surveillance Report, 2005
Each year the Division of HIV/AIDS Prevention of
the National Center for HIV/AIDS, Viral Hepatitis,
STD, and TB Prevention at CDC publishes an HIV/AIDS
surveillance report. On June 28, 2007, CDC published
online a revised 2005 report to correct an error in
the calculation of the number of estimated AIDS
cases for the period 2001--2005; this error resulted
in an overestimate of 2% for the period 2001--2005
and 8.3% for the year 2005 (1). These data
were published online initially in November 2006 in
CDC's HIV/AIDS Surveillance Report, 2005 (2).
CDC identified the error when reviewing computer
programs in preparation for analyzing data for the
2006 report. An error in the computer code used to
adjust for reporting delays in AIDS cases led to
overestimation of AIDS cases for the period
2001--2005. Because 20% of AIDS cases typically are
reported >1 year after diagnosis with AIDS,
estimates are used to adjust for reporting delays
and to allow for evaluation of data from recent
years. The error has been corrected, and a complete
external review of procedures for data estimation
and validity checks has been conducted to ensure
that this type of error does not occur again.
The error affected only estimated AIDS cases for
the period 2001--2005, including those AIDS cases
for which HIV and AIDS were diagnosed concurrently.
The error did not affect data on reported cases of
HIV or AIDS (i.e., the raw data provided to CDC by
health departments). The error did not affect data
used to allocate funding for major HIV/AIDS
assistance and treatment programs administered by
the Health Resources and Services Administration and
the Department of Housing and Urban Development;
only reported cases are used for allocation of
resources administered via the Ryan White HIV/AIDS
Treatment Modernization Act and Housing
Opportunities for Persons with AIDS.
The overestimate of AIDS cases was 2% for the
period 2001--2005 and 8.3% for 2005. Because some
AIDS cases are diagnosed concurrently with HIV
infection, a small overestimate of HIV/AIDS cases
also occurred (0.4% for 2001--2005; 2% in 2005). The
corrected estimates for 2005 are 40,608 estimated
AIDS cases for the 50 states and the District of
Columbia and 37,331 estimated HIV/AIDS cases for the
33 states with longstanding HIV reporting.
Analyses and publications (e.g., fact sheets,
slide sets, and web pages) produced using estimated
AIDS data from the HIV/AIDS Surveillance Report,
2005 have been corrected and reposted on the CDC
website. The revised 2005 report and additional
information regarding the revised estimates are
available at
http://www.cdc.gov/hiv/datarevision.htm.
References
- CDC. HIV/AIDS surveillance report, 2005.
Vol. 17. Revised. Atlanta, GA: US Department of
Health and Human Services, CDC; 2007.
- CDC. HIV/AIDS surveillance report, 2005.
Vol. 17. Atlanta, GA: US Department of Health
and Human Services, CDC; 2006.
Use of trade names and commercial
sources is for identification only and does
not imply endorsement by the U.S. Department
of Health and Human Services.
References to
non-CDC sites on the Internet are provided
as a service to MMWR readers and do
not constitute or imply endorsement of these
organizations or their programs by CDC or
the U.S. Department of Health and Human
Services. CDC is not responsible for the
content of pages found at these sites. URL
addresses listed in MMWR were current
as of the date of publication.
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Date
last reviewed: 6/27/2007
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