Intervention development for cannabis dependence in the early phase of psychosis: Creating consensus amongst local, national and international experts using a modified Delphi Method

 
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Presentation First Author: 
Kevin Madigan
Abstract: 

BackgroundSubstance use is recognised as the most common co morbidity of psychosis, with cannabis the substance used most often. A recent 5 year follow-up study of individuals with a first episode psychosis demonstrated that those who continued to use cannabis experienced more psychotic symptoms and poorer functioning. Thirty two Randomised Controlled Trials have failed to support evidence for an effective intervention to improve outcomes, most experiencing difficulties in recruitment and engagement. Aim The aim of this study is to use a modified version of the Delphi method as an innovative way to consult with experts from various fields to gather their opinions through an iterative process and reach a consensus as to which interventions are most likely to engage and improve outcomes for people with early phase psychosis and comorbid cannabis abuse or dependence.Methodology Participants are selected through the use of purposive sampling based on their expert knowledge in the areas of psychosis and cannabis research, clinical service delivery, or through their experience as a carer or service user, to participate in at least three rounds of interview via telephone/skype/email. The research team compiles the outcome of reach round of interviews to inform a subsequent round until information saturation is reached.Results / Implications When a consensus of information is achieved the research team will develop an intervention manual based on the Delphi study findings to be utilized within a large scale RCT.

Conference Name: 
Presentation Date: 
January, 2015
Additional Authors: 
Stephen O'Rourke - John Waddington - Mary Clarke
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