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Hi,
Relative risk is commonly used in Epidemiology and Medical Statistics.
It is simply the ratio of two proportions.
Because of some desirable properties, it is usual to calculate instead
of it another index, the *odds ratio*, that is a good approximation to
relative risk in many practical
In article 9g9k9f$h4c$[EMAIL PROTECTED],
Eric Bohlman [EMAIL PROTECTED] wrote:
In sci.stat.consult Tracey Continelli [EMAIL PROTECTED] wrote:
value. I'm not sure why you'd want to reduce the size of the data
set, since for the most part the larger the N the better.
Actually, for datasets of
There was some research recently linking heart attacks with
Marijuana smoking.
I'm trying to work out the correlation and, most
importantly, its statistical significance.
In essence the problem comes down to:
Of 8760 hours in a year, 124 had heart attacks in them, 141
had MJ smokes in them and
On 13 Jun 2001 20:32:51 -0700, [EMAIL PROTECTED] (Tracey
Continelli) wrote:
Sidney Thomas [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]...
srinivas wrote:
Hi,
I have a problem in identifying the right multivariate tools to
handle datset of dimension
David C. Ullrich wrote in message [EMAIL PROTECTED]...
On Thu, 14 Jun 2001 15:22:25 +0100, Paul Jones
[EMAIL PROTECTED] wrote:
There was some research recently linking heart attacks with
Marijuana smoking.
I'm trying to work out the correlation and, most
importantly, its statistical
Steve Leibel wrote:
So the people who died from heart attacks weren't even considered in the
study. Perhaps of all the people who had heart attacks, recent mj use
was statistically correlated with saving their lives. That would be
consistent with what you just described. So the
In article 9galk6$fjr$[EMAIL PROTECTED],
Mr Unreliable [EMAIL PROTECTED] wrote:
David C. Ullrich wrote in message [EMAIL PROTECTED]...
On Thu, 14 Jun 2001 15:22:25 +0100, Paul Jones
[EMAIL PROTECTED] wrote:
There was some research recently linking heart attacks with
Marijuana smoking.
David C. Ullrich wrote in message [EMAIL PROTECTED]...
On Thu, 14 Jun 2001 15:22:25 +0100, Paul Jones
[EMAIL PROTECTED] wrote:
There was some research recently linking heart attacks with
Marijuana smoking.
I'm trying to work out the correlation and, most
importantly, its statistical
Thanks for replying, David. I'll try to frame the problem
better.
First, I shall explain my motivations.
There has recently been some research that implied that
smoking MJ increased risk of heart attack in the hour
following the heart attack. I haven't got the full text of
the article - I've
Herman Rubin wrote:
In article 9g9k9f$h4c$[EMAIL PROTECTED],
Eric Bohlman [EMAIL PROTECTED] wrote:
In sci.stat.consult Tracey Continelli [EMAIL PROTECTED] wrote:
value. I'm not sure why you'd want to reduce the size of the data
set, since for the most part the larger the N the better.
I was surprised to see this subject heading on sci.math. I thought
it might have to do with the following lyrics (I forget the name of
the group and the song):
I smoke two joints at two o' clock;
I smoke two joints at four.
I smoke two joints before I smoke two joints,
And then I smoke two
On Thu, 14 Jun 2001 16:37:02 +0100, Mr Unreliable
[EMAIL PROTECTED] wrote:
David C. Ullrich wrote in message [EMAIL PROTECTED]...
On Thu, 14 Jun 2001 15:22:25 +0100, Paul Jones
[EMAIL PROTECTED] wrote:
There was some research recently linking heart attacks with
Marijuana smoking.
[...]
Brother! That topic sure drew a crowd! :)
Paul Jones wrote:
There was some research recently linking heart attacks
with
Marijuana smoking.
[big snip]
Jay
--
Jay Warner
Principal Scientist
Warner Consulting, Inc.
North Green Bay Road
Racine, WI 53404-1216
USA
Ph: (262) 634-9100
FAX: (262)
Paul Jones wrote ...
So the research says that of a large number of people who
had heart attacks at a centre, 124 people had used MJ in the
year preceding the HA. Of these 9 reported that they had
used MJ in the hour preceding the HA. All MJ users were
questioned on the frequency with which
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