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- Newsgroups: misc.kids
- Path: sparky!uunet!cs.utexas.edu!torn!blaze.trentu.ca!trentu.ca!bwolfe
- From: bwolfe@trentu.ca (BEN WOLFE)
- Subject: Re: Here a study, there a study
- Message-ID: <22DEC199210460367@trentu.ca>
- News-Software: VAX/VMS VNEWS 1.41
- Sender: news@trentu.ca (USENET News System)
- Organization: Trent Computing and Telecommunications Department
- Date: Tue, 22 Dec 1992 15:46:00 GMT
- Lines: 47
-
- reid@metis.tti.com (Reid Kneeland) writes:
-
- > Studies, and statistical inference in general, are the foundation of
- > modern science. Done properly, they are the only way that general
- > conclusions can be draw from available data. While no one study is
- > definitive, one can draw meaningful conclusions by looking at all the
- > studies, looking critically at the methodologies involved, and looking
- > at patterns which emerge. Saying that X is or isn't true because a
- > particular study said so is not valid reasoning if most other valid
- > studies have indicated otherwise. But it is just as wrong to throw out
- > the whole idea of studies and statistics because of apparent
- > contradictions. There will always be evidence on both sides of any
- > medical issue; the question is where the *preponderance* of evidence
- > from well-constructed studies lies.
-
- Yes, absolutely. And in the field of pregnancy and childbirth there has
- recently been a more than 10-year effort to sum up the best studies
- of the last three decades and draw whatever conclusions are possible.
- The effort was headed by an international team that included Canada's
- most distinguished obstetrician (Murray Enkin) and one of Britain's
- leading epidemiologists (Iain Chalmers). The project was overseen
- by Oxford University Press, perhaps the English-speaking world's
- most authoritative publisher.
-
- The result is an enormous and exceptionally valuable two volume
- set of books called "Effective Care in Pregnancy and Childbirth." This
- set does exactly what the above-quoted post suggests: it determines
- "where the preponderance of evidence from well-constructed
- studies lies" in each of dozens of key areas of perinatal care.
-
- The two-volume set costs a small fortune and is only readily available
- at medical, nursing and midwifery schools, but Oxford also issued
- a paperback synopsis of the whole that gives all key conclusions. It's
- called "A Guide to Effective Care in Pregnancy and Childbirth," and cost
- $22.50 Canadian when we bought it. Though its medical language can
- be weighty, this volume is THE current authoritative source on
- medical issues in maternity care.
-
- Among other things, it lists a large number of very common
- procedures which either have "unknown effects which require
- further evaluation" or "should be abandoned in the light of the
- available evidence." If you're debating certain procedures with your
- doctor, "Effective Care" may give you the evidence you need to avoid
- them.
-
- This is research at its most useful.
-
-