Pubdate: Thu, 19 Feb 2015
Source: Denver Post (CO)
Copyright: 2015 The Denver Post Corp
Contact:  http://www.denverpost.com/
Details: http://www.mapinc.org/media/122
Author: Christopher Ingraham, The Washington Post

STUDY LINKS SOME POT TO PSYCHOSIS

Frequent use of high-potency weed might be linked to an increased 
risk of having a psychotic episode. But milder strains of marijuana, 
even when used heavily, don't appear to carry an increased risk of psychosis.

Researchers got data from 410 London patients sent to the hospital 
for a first-episode psychotic incident and compared those numbers 
with data from370 control individuals living in the same area.

Compared with someone who had never smoked, a weekly user of high- 
potency weed, defined as having greater than 15 percent THC content, 
was three times as likely to be diagnosed with a psychotic disorder. 
The researchers found no link between frequent use of low-potency 
weed and psychotic disorder.

The findings were published Tuesday in the journal Lancet Psychiatry.
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MAP posted-by: Jay Bergstrom