- Aug 18, 2001
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Originally posted by: Lemon law
There have been a pile of such studies and most of them have extremely poor methodologies.
Rather than do the required research to give a valid scientific rebuttal---the end comment of the very link you cite casts serious doubts regarding the study and is somewhat proof positive this study should go into the garbage pan of junk studies.
But end of article comment---"However, others questioned the link, pointing out there has been little change in rates of schizophrenia in recent years despite the rise in cannabis use and the increasing strength of the drug."
In other words---you have an increase in the rate of use and strength of the drug----and if the study's conclusion is correct---and cannabis use increases the rate of mental illness---then the mere lack of such a predicted increase in mental illness frequency following increase in cannabis use tells you conclusion of study full of shit and the research methodologies must be flawed.
And also proving the other statistical truism---figures don't lie but liars figure.
Originally posted by: heartsurgeon
You know who you are!!
Smoking just one cannabis joint raises danger of mental illness by 40%
Originally posted by: yllus
I would think that common sense would slap you in the face with the fact that this can't be true.
Originally posted by: thraashman
I love how none of you have read the study...I don't care what the study says in the end
Summary
Background
Whether cannabis can cause psychotic or affective symptoms that persist beyond transient intoxication is unclear. We systematically reviewed the evidence pertaining to cannabis use and occurrence of psychotic or affective mental health outcomes.
Methods
We searched Medline, Embase, CINAHL, PsycINFO, ISI Web of Knowledge, ISI Proceedings, ZETOC, BIOSIS, LILACS, and MEDCARIB from their inception to September, 2006, searched reference lists of studies selected for inclusion, and contacted experts. Studies were included if longitudinal and population based. 35 studies from 4804 references were included. Data extraction and quality assessment were done independently and in duplicate.
Findings
There was an increased risk of any psychotic outcome in individuals who had ever used cannabis (pooled adjusted odds ratio=1·41, 95% CI 1·20?1·65). Findings were consistent with a dose-response effect, with greater risk in people who used cannabis most frequently (2·09, 1·54?2·84). Results of analyses restricted to studies of more clinically relevant psychotic disorders were similar. Depression, suicidal thoughts, and anxiety outcomes were examined separately. Findings for these outcomes were less consistent, and fewer attempts were made to address non-causal explanations, than for psychosis. A substantial confounding effect was present for both psychotic and affective outcomes.
Interpretation
The evidence is consistent with the view that cannabis increases risk of psychotic outcomes independently of confounding and transient intoxication effects, although evidence for affective outcomes is less strong. The uncertainty about whether cannabis causes psychosis is unlikely to be resolved by further longitudinal studies such as those reviewed here. However, we conclude that there is now sufficient evidence to warn young people that using cannabis could increase their risk of developing a psychotic illness later in life.
I always find this kind of post nonsensical. What do you expect to happen on a Web forum, people to post an article about a study and 50 people to reply with, "Interesting, I shall reserve comment until I read the full study"?Originally posted by: thraashman
I love how none of you have read the study, just a brief article on it. And you immediately come in to defend your buddy pot. Well I think we can guess who the pot smokers in ATPN are! I don't care what the study says in the end, I've seen enough of the effects of pot on people that I will never smoke it. I really don't want to end up as stupid as those people are.
Ownage+1Originally posted by: yllus
I always find this kind of post nonsensical. What do you expect to happen on a Web forum, people to post an article about a study and 50 people to reply with, "Interesting, I shall reserve comment until I read the full study"?Originally posted by: thraashman
I love how none of you have read the study, just a brief article on it. And you immediately come in to defend your buddy pot. Well I think we can guess who the pot smokers in ATPN are! I don't care what the study says in the end, I've seen enough of the effects of pot on people that I will never smoke it. I really don't want to end up as stupid as those people are.
Based on historical evidence (anecdotal and not) this is extremely dubious. Smoking one joint jumps the danger level by a full 40%? Okay, let's go by another study saying that 16.8 per cent of Canadians used marijuana in 2004, and only 6.1 per cent in Holland did the same. But Canada has an incidence rate of mental illness of 22.10%, and Holland a rate of 22.10% (Source). Why didn't those ~5 million Canadians who smoked at least once hugely spike our rate of mental illness.
Lastly, what an idiotic thing to end your post with. I don't do any kind of drug. I don't even like beer. I don't have to be a KKK member to defend their right to think and say what they wish to say.
Every research conference I go to is sponsored by a related drug company. I get a free tote bag from them when I check in at the conference. Does this make me biased? I don't think so.Originally posted by: alchemize
Here's some more interesting information
Two of the authors of the study were invited experts on the Advisory Council on the Misuse of Drugs Cannabis Review in 2005. Several authors reported being paid to attend drug company-sponsored meetings related to marijuana, and one received consulting fees from companies that make antipsychotic medications.
Why can't there be serious, independent studies?
Originally posted by: heartsurgeon
You know who you are!!
Smoking just one cannabis joint raises danger of mental illness by 40%
Actually it does, if only a little. Why do you think companies give out gifts?Originally posted by: CycloWizard
Every research conference I go to is sponsored by a related drug company. I get a free tote bag from them when I check in at the conference. Does this make me biased? I don't think so.
Use some common sense. Nobody here will read it because it's a waste of time. If I release a 20 page study about how saying the word "jilted" 500 times every day when I wake up ensures that I will never die, are you really going to read that study or just call me a quack and be done with it?For everyone dismissing the study, have any of you read it, or do you generally discount research out of hand when it disagrees with your prefab opinion? I haven't read it (nor will I), but I think it's pretty ridiculous that everyone is so quick to condemn it. I don't care one way or the other whether it's right, but I do have a problem with ignorant people judging scientific work (especially when they're reviewing one of my papers ).
Originally posted by: heartsurgeon
You know who you are!!
Smoking just one cannabis joint raises danger of mental illness by 40%