Evaluation of the NSW Alcohol Magistrates Early Referral

Download Report

Transcript Evaluation of the NSW Alcohol Magistrates Early Referral

Evaluation of the
NSW Alcohol Magistrates Early Referral
into Treatment (MERIT) Program
A Randomised Controlled Trial
OUTLINE

Previous research

Current research design

Agencies involved

Research aims

Procedure

Outcome measures

Research sites

Governance

Research timeline

Sample size
PREVIOUS RESEARCH
Rural Alcohol Diversion (Martire & Larney, 2011)
 Pre-post comparison of RAD completers (n = 119)
 Outcome measures: changes in alcohol use, psychological
distress, health
 Results:
 Reductions in past-month alcohol use at completion relative to baseline
 Reductions in psychological distress at completion relative to baseline
 Improvements in mental & physical health at completion relative to baseline
 Limitations: selection bias
PREVIOUS RESEARCH
Illicit drug MERIT: health outcomes (NSW Health, 2007)
 Pre-post comparison of MERIT completers (n = 1,470)
 Outcome measures: changes in drug use, psychological
distress, health
 Results:
 Reductions in drug use at completion relative to baseline
 Reductions in psychological distress at completion relative to baseline
 Improvements in mental & physical health at completion relative to baseline
 Limitations: selection bias
PREVIOUS RESEARCH
Illicit drug MERIT: recidivism (Lulham 2009)
 MERIT participants (n = 3,441) cf. non-MERIT offenders who broadly
met eligibility criteria (n = 23,960)
 Outcome measures: any reconviction, theft reconviction, drug
reconviction (2-year follow-up)
 Results:

4 percentage point reduction in any reconviction

4 percentage point reduction in theft reconviction

2 percentage point reduction in drug reconviction (p=.06)
 Strengths: strong research design relative to previous evaluations
 Limitations: statistical model relied on assumptions that cannot be
tested
CURRENT RESEARCH DESIGN


Randomised Controlled Trial (RCT) – the most rigorous
research design which overcomes methodological
limitations of previous research

Group 1 (‘treatment’ group): receive 12-week Alcohol-MERIT treatment.

Group 2 (‘control’ group): receive a brief psychological intervention about
substance abuse and a referral to appropriate non-MERIT community
health service.
Assuming sample size is large enough, random
assignment ensures groups equivalent on all factors
except the treatment type
CURRENT RESEARCH DESIGN
Ethical issues
 NSW Ministry of Health advised that demand at times
exceeds capacity
 Ministry adopted random assignment as a management
strategy in order to ensure fair and equitable access to the
program for all defendants
 This strategy presents a unique opportunity to evaluate the
effectiveness of the program under rigorous conditions
 Research described below is independent of this
randomisation procedure
AGENCIES INVOLVED
 Commissioned by the NSW Ministry of Health
 Conducted by NSW Bureau of Crime Statistics and
Research (BOCSAR)
RESEARCH AIMS
1. Does participation in Alcohol-MERIT improve health and
social functioning?
2. Does participation in Alcohol-MERIT reduce reoffending?
PROCEDURE
Intake & interviews
 Defendants invited to participate in research post-ballot

Consent = interviewed at follow-up and researchers access criminal records

No consent = no follow up and no access to records but treatment does not change
 Consent form sent to BOCSAR, researcher calls to arrange first
interview
 Three phone interviews – 2, 6, 12 mths post-assessment
 Each interview takes 30 to 45 minutes
 Defendants receive $40 supermarket gift card
OUTCOME MEASURES
 Health – follow-up phone interviews
 Changes in severity of alcohol dependence (SAD-Q)
 Changes in Q/F of recent alcohol and illicit drug use
 Changes in health and social functioning (SF-36)
 Changes in measures of psychological distress (K-10)
 Criminal justice – BOCSAR’s Re-Offending Database (ROD)
 Time to first new offence
 Sentencing outcomes for index offence
 Time spent in custody in 12 months following the Alcohol-MERIT
assessment
RESEARCH SITES
Local courts involved are:

Newcastle (Hunter/New England LHD)

Albion Park, Kiama, Port Kembla, Wollongong
(Illawarra/Shoalhaven LHD)

Hornsby, Manly, North Sydney, Ryde (Northern
Sydney LHD)

Fairfield, Liverpool, Campbelltown (South
Western Sydney LHD).
GOVERNANCE
Ethics Approval (Number HE11/352)
 University of Wollongong (UOW) and Illawarra/Shoalhaven
(ISLHD) Health and Medical Human Research Ethics
Committee (lead agency)
 Hunter New England Research Ethics & Governance Unit
 Northern Sydney Local Health District (NSLHD) Research
Governance Office
 South Western Sydney Local Health District (SWSLHD)
Ethics & Research Governance Office
GOVERNANCE
Evaluation advisory committee:
 BOCSAR
 NSW Ministry of Health
 MERIT managers and clinicians from 4 LHDs
 MERIT data manager
 Crime Prevention Division (DAGJ)
GOVERNANCE
Stakeholders:
 Magistrates, registrars in each of the relevant local
courts
 CEO, Legal Aid Commission
 Presidents of local Law Societies, local Legal Aid
offices and Aboriginal Legal Services
 NSW Police Force

Information sheets have been prepared and distributed
RESEARCH TIMELINE

Recruitment of defendants began on 10 April 2012

Projected completion date of recruitment: mid-2013

Defendants will be followed-up over 12 months

Planned project completion: mid-2015
SAMPLE SIZE
 Sample size required to find a true effect = 540
by mid-2013
 Consent forms received to date = 41 (21 AM, 20 BI)
CONTACT DETAILS
For further information about this study, please contact the
BOCSAR research team:

Dr Don Weatherburn – Director

Mr Craig Jones – Research Manager

Ms Lily Trimboli – Senior Research Officer

Ms Susan Spratley – Research Assistant
on (02) 9231 9190