Connect
MJA
MJA

In Other Journals

Ann Gregory
Med J Aust 2005; 182 (2): .
Published online: 17 January 2005

The cannabis or the psychosis? European researchers have challenged the commonly held belief that people may start using cannabis because they are predisposed to psychosis. They surveyed 2500 young Germans, aged 14 to 24 years, once in 1995 and again, four years later, in 1999. A predisposition to psychosis, determined from a self-report symptom checklist, did not predict future cannabis use four years later. However, exposure to cannabis did increase the risk of psychotic symptoms later in life, especially in those with a predisposition to psychosis. Moreover, there was a dose-response relationship — the greater the cannabis use at baseline, the greater the risk of developing psychotic symptoms, independent of a predisposition to psychosis.

  • Ann Gregory


Correspondence: 

Author

remove_circle_outline Delete Author
add_circle_outline Add Author

Comment
Do you have any competing interests to declare? *

I/we agree to assign copyright to the Medical Journal of Australia and agree to the Conditions of publication *
I/we agree to the Terms of use of the Medical Journal of Australia *
Email me when people comment on this article

Responses are now closed for this article.