Publications by authors named "Joan Blake"

The purposes of this study were to examine predictors of benzodiazepine use among methadone maintenance treatment patients, to determine whether baseline benzodiazepine use influenced ongoing use during methadone maintenance treatment, and to assess the effect of ongoing benzodiazepine use on treatment outcomes (i.e., opioid and cocaine use and treatment retention).

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To characterize prescription opioid dependent patients in a methadone maintenance treatment (MMT) program, a detailed retrospective chart review of new admissions (1997-1999, n=178, mean age=34.5+/-0.7 years, 65% male) was conducted.

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Background: The detection of excessive alcohol consumption by laboratory methods continues to lack sensitivity and specificity. Recent studies have suggested that diagnostic improvement may be achieved by combining carbohydrate-deficient transferrin (CDT) and gamma-glutamyltransferase (GT) measurements into a marker defined as gamma-CDT.

Methods: We developed a new approach for determining gamma-CDT by using the data obtained from the Axis %CDT turbidimetric assays.

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This paper describes the consequences of changing from methadone maintenance treatment focussed primarily on elimination of all illicit drug use and social reintegration to patient-centred care. Counselling (formerly mandatory) became optional, patients were retained in treatment despite continued illicit drug use, the ceiling on methadone doses was removed, patient input became a part of methadone prescribing and the number of patients in treatment more than doubled. Across three cohorts (before, during and after the program was redesigned) the mean daily dose of methadone increased (50.

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Aims: Due to methodological heterogeneity, conflicting views have been expressed on the validity of CDT measurements in the detection of alcohol misuse.

Methods: We compared the characteristics of the conventional CDTect method and the Axis turbidimetric CDT assays in the assessment of 62 alcoholics, who were either with (n = 33) or without (n = 29) liver disease, as analysed by combined clinical, laboratory, and morphological indices. Controls were 45 healthy volunteers who were either social drinkers or abstainers.

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Background: Serum sialic acid (SA) has been suggested as a new marker of alcohol consumption. There are, however, only a few studies on the clinical value of such measurements. The relationship between serum SA and liver disease is also unknown.

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Over the past several years there have been repeated calls for expansion of availability of methadone maintenance in several jurisdictions. Important stakeholders in the expansion of methadone maintenance treatment (MMT) are existing treatment providers. This study describes the impact of the rapid expansion in treatment availability in Ontario on the long-standing MMT program of the Centre for Addiction and Mental Health (CAMH).

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