Simon Justin Adamson

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The Cannabis Use Disorders Identification Test (CUDIT) was used for the first time as part of a randomized controlled trial for brief interventions in mild to moderate alcohol-dependent out-patients. This sample may be seen as a population at increased risk of cannabis use disorder. The CUDIT was developed by modifying the Alcohol Use Disorders(More)
Patient characteristics as predictors of alcohol use disorder treatment outcome were examined on three levels, identifying whether or not variables were significant predictors of drinking-related outcome in univariate analysis, in multivariate analysis, and in multivariate analyses limited to studies including several "key predictors." Also, a model was(More)
BACKGROUND Cannabis is widely used and significant problems are associated with heavier consumption. When a cannabis misuse screening tool, the CUDIT, was originally published it was noted that although it performed well there was concern about individual items. METHODS 144 patients enrolled in a clinical trial for concurrent depression and substance(More)
OBJECTIVE This study was designed to conduct a randomized controlled trial of motivational enhancement therapy (MET) with two control conditions: nondirective reflective listening (NDRL) and no further counseling (NFC); and to conduct this study in a sample of patients with a primary diagnosis of mild to moderate alcohol dependence, in a "real-life"(More)
OBJECTIVE To describe the extent of psychiatric disorder and mental health service utilization in a representative outpatient alcohol and other drug (AOD) treatment sample in New Zealand. METHOD A total of 105 patients were randomly recruited from two outpatient AOD treatment services in New Zealand and completed a diagnostic interview within the first 2(More)
The Brief Treatment Programme for Alcohol Dependence allocated 122 clients randomly to three different forms of brief therapy. Prior to allocation clients were asked what their preference would have been had allocation not been random. This study posed the question: did clients receiving their preferred treatment have a better outcome than those who did(More)
Drug use creates a significant amount of harm in modern societies. From an evolutionary perspective, the pervasive use of drugs and the ongoing risk of drug addiction can be explained in terms of the action of drugs on evolved motivational-emotional systems. Addiction arises through interaction of these evolutionarily ancient systems, designed to promote(More)
AIMS To compare treatment outcomes between clients preferring abstinence and those preferring non-abstinence at the screening stage of a randomized controlled trial of treatment for alcohol problems (the United Kingdom Alcohol Treatment Trial) and to interpret any differential outcome in light of baseline differences between goal preference groups outlined(More)
In New Zealand approximately 4600 people receive opioid substitution treatment (OST) for opioid dependence, primarily methadone maintenance treatment. This study explored ways in which OST could be improved, given the significant waiting times for treatment. Two parallel surveys were conducted: 1) peer interviews with 85 regular daily or almost daily opioid(More)
This study investigated the health status of a representative sample of clients (35 Maori, 72 non-Maori) receiving methadone maintenance treatment in New Zealand, using the SF-36 health survey. The publication of New Zealand norms in 1999 enabled comparisons of the health of the Methadone Treatment Programme study participants with that of the New Zealand(More)