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- Newsgroups: sci.med.aids
- Path: sparky!uunet!news.claremont.edu!ucivax!ucla-cs!usenet
- From: weemba@sagi.wistar.upenn.edu (Matthew P Wiener)
- Subject: Re: CDC estimates of HIV infection
- Message-ID: <1993Jan25.165759.19055@cs.ucla.edu>
- Note: Copyright 1992, Dan R. Greening. Non-commercial reproduction allowed.
- Sender: news@noc2.dccs.upenn.edu
- Nntp-Posting-Host: sole.cs.ucla.edu
- Reply-To: weemba@sagi.wistar.upenn.edu (Matthew P Wiener)
- Archive-Number: 27
- Organization: The Wistar Institute of Anatomy and Biology
- References: <1993Jan24.231301.16926@cs.ucla.edu>
- Date: 25 Jan 93 15:45:04 GMT
- Approved: phil@wubios.wustl.edu (J. Philip Miller)
- Lines: 33
-
- In article <1993Jan24.231301.16926@cs.ucla.edu>, corwin+@CMU (Scott Safier) writes:
- >This month's SPY magazine has a (rather humourous) article which
- >indicates that the CDC's estimate of the number of people infected
- >with HIV has not changed since 1985. The estimate is always "over 1
- >million people." Does anyone know why this is?
-
- It is not easy to estimate the prevalance of HIV. The size of the
- largest risk groups--gay men, bi men, and IV drug users--are already
- uncertain to begin with. Different estimates exist regarding the
- prevalance of HIV within each group, partly because it varies from
- city to city, and rural rates of increase are apparently much higher
- than urban rates. The US military in 86-87 directly checked the
- seroprevalance rate in ~4 million of its own, and found a ~.1% rate.
- This mostly serves as a base for the population at large, since gays
- and drug users are discouraged from enlisting. The rate in the Peace
- Corps seems to be about 2.5x the military rate. The rate among blood
- doners is yet some other figure. Etc. The only reality check is the
- number of AIDS cases--and here the CDC gets very precise--but it is a
- very weak restraint.
-
- In sum, 1-1.5 million is about the best one can say. The roundness
- of the figure gives it a lock that our ignorance cannot veto. The
- correct figure is presumably on the increase, but keep in mind that
- the true number itself will obviously not increase as fast as new
- infections--about 80% of those HIV+ in 1987 are now dead.
-
- > Was the last/most
- >recent study done in 1985? Does anyone know of a better estimate?
-
- Others have done their own studies. Insurance companies and the like
- have commissioned independent estimates. Some are twice the CDC's.
- --
- -Matthew P Wiener (weemba@sagi.wistar.upenn.edu)
-