Patterns of Cannabis use in patients with first epidsode psychosis This PhD will utilize data collected by the IMPaCT study (REC Ref No: 08/H0807/53) and GAP study (REC Ref No: 135/05).
We recruit patients who have been admitted with their first episode of psychosis and follow them for a year to record changes in psychotic symptoms, physical and biological measures (e.g. weight, glucose) and substance use.