The academics found those in the first group were more likely to smoke cannabis daily and to smoke skunk than those in the second.
The researchers say: Skunk use alone was responsible for 24 per cent of adults presenting with first-episode psychosis to the psychiatric services in South London.
Indeed, even if they found a higher incidence, it does not equate to finding that caused the psychosis.
By the way, here is just the latest dope addict in the news after having done something psychotic and crazy.
This is the guy who killed Chris Kyle. (The American Sniper.)
STEPHENVILLE, Texas Authorities found a marijuana grinder, a bong, a mostly empty bottle of whiskey and ammunition while searching the home of a former Marine charged with killing the author of American Sniper and his friend, a Texas Ranger testified Friday.
New evidence was presented in the murder trial of Eddie Routh on Friday. According to testimony, marijuana and other drug paraphernalia were found inside the suspects home the night he was arrested.
Routh's uncle, James Watson, 45, later testified that he smoked marijuana the day of the killings with his nephew.
http://www.usatoday.com/story/news/nation/2015/02/13/american-sniper-trial-day-3/23377299/