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- From: weemba@sagi.wistar.upenn.edu (Matthew P Wiener)
- Newsgroups: sci.med.aids
- Subject: Re: CDC estimates of HIV infection
- Message-ID: <1993Jan26.203356.12868@cs.ucla.edu>
- Date: 26 Jan 93 18:25:57 GMT
- References: <1993Jan24.231301.16926@cs.ucla.edu> <1993Jan25.165759.19055@cs.ucla.edu>
- Sender: news@noc2.dccs.upenn.edu
- Reply-To: weemba@sagi.wistar.upenn.edu (Matthew P Wiener)
- Organization: The Wistar Institute of Anatomy and Biology
- Lines: 21
- Approved: david@stat.com (David Dodell)
- Note: Copyright 1992, Dan R. Greening. Non-commercial reproduction allowed.
- Nntp-Posting-Host: sole.cs.ucla.edu
- Archive-Number: 40
-
- In article <1993Jan25.165759.19055@cs.ucla.edu>, I wrote:
- >It is not easy to estimate the prevalance of HIV. [...]
-
- Chris Foreman of The Brookings Institution referred me to the CDC's
- summary of its estimation process: "HIV Prevalence Estimates and AIDS
- Case Projections for the United States: Report Based Upon a Workshop"
- MMWR v39 #RR-16 (30 Nov 90).
-
- Reading through it, I see I left out one other significant factor in
- the illusory constancy of the one million figure. In the time between
- the 1986 and the 1990 estimates, more information regarding prevalance
- and disease progression became available. Taking this into account,
- the CDC is now retroactively estimating that there were 750,000 HIV+
- people in the US in Jan 86.
-
- For what it's worth, let me mention that a more extreme downsizing
- occurred in African HIV estimates. The original tests unknowingly
- cross-reacted with malaria antibodies, leading to an incredible number
- of false positives.
- --
- -Matthew P Wiener (weemba@sagi.wistar.upenn.edu)
-