Director (CHaRT)
- 51cg
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- Email Address
- g.maclennan@abdn.ac.uk
- Telephone Number
- +44 (0)1224 438147
- Office Address
Health Services Research Unit
2nd Floor Health Sciences Building
Foresterhill
Aberdeen
AB25 2ZD- School/Department
- School of Medicine, Medical Sciences and Nutrition

Biography
I am currently Professor of Medical Statistics and the Director of the Centre for Health Care Randomised Trials (CHaRT) which is the Clinical Trials Unit embedded within the Health Services Research Unit. My overarching research interest is in designing fair tests of health care treatments and policies, with a specifc interest in evaluating surgical and complex interventions. I'm also interested in improving the design, conduct, and analysis and reporting of clinical trials through the development and application of methodological research to clinical trials from CHaRT.
My undergrad degree is in Mathematics from the 51cg, graduating in 1997. After a year training as a Mathematics teacher I joined the Unit in September 1998 as a statistician. I studied part-time for an MSc in Applied Statistics with Sheffield Hallam University, graduating in 2004. In 2008 I was appointed Senior Statistican, and in 2016 was I Interim Programme Director for the Health Care Assessment Programme, until being appointment as CHaRT Director in April 2017.
Qualifications
- BSc Mathematics1997 - 51cg
- MSc Applied Statistics2004 - Sheffield Hallam University
- Research
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Research Overview
The application of statistical methods to clinical trials. Recent example is JCE paper available on using instrumental variables in a surgery trial to address non-compliance. Collaborators were (Oxford), (Lancaster), and (Manchester).
Research on making trials more efficient, collaborating with .
Current Research
A complete list of the CHaRT RCT portolio is available by clicking
- Teaching
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Teaching Responsibilities
I teach on our MPH course module PU5031: EVIDENCE-BASED HEALTH.
- Publications
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Page 4 of 29 Results 31 to 40 of 285
Complexity of Trials on Pain Management in Acute Pancreatitis: An Ongoing Challenge
Clinical Gastroenterology and Hepatology, vol. 23, no. 1Contributions to Journals: Letters- [ONLINE] DOI:
- [ONLINE]
Laparoscopic cholecystectomy versus conservative management for uncomplicated symptomatic gallstones: economic evaluation based on the C-GALL trial
British Journal of Surgery, vol. 112, no. 1, znae293Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
A feasibility randomized controlled trial of an individually delivered, peer support intervention to reduce the impact of psychosis stigma and discrimination for people with psychosis: the let's talk study
Psychological Medicine, vol. 54, no. 16, pp. 4600-4611Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
CATHETER II: a randomised controlled trial comparing the clinical and cost effectiveness of various washout policies versus no washout policy in preventing catheter associated complications in adults living with long term catheters
BMJ Open, vol. 14, no. 12, e087203Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
Clinical and cost-effectiveness of parenting intervention for mothers experiencing psychosocial stress: insights from the early closure of the Mellow Babies RCT
Public Health Research, vol. 12, no. 17Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
Which glaucoma patients should be monitored at home and exploration of clinician perceptions on home monitoring? a survey of glaucoma specialists in the UK
BMJ Open, vol. 14, no. 11, pp. e080873Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
- [ONLINE]
Patient and health care professionals’ perception of weekly prophylactic catheter washout in adults living with long-term catheters: Qualitative Study of the CATHETER II Trial
The International Continence SocietyContributions to Conferences: Posters- [ONLINE]
- [ONLINE]
RCT comparing the clinical and cost effectiveness of various catheter washout policies
RCOG World Congress 2024, MTeP-42Contributions to Journals: Abstracts- [ONLINE]
- [ONLINE] DOI:
CATHETER II, a randomised controlled trial comparing the clinical and cost effectiveness of various washout policies versus no washout policy in preventing catheter associated complications in adults living with long term catheters
The International Continence Society, 101602Contributions to Journals: Abstracts- [ONLINE] DOI:
Patient and health care professionals’ perception of weekly prophylactic catheter washout in adults living with long-term catheters: Qualitative Study of the CATHETER II Trial
RCOG World Congress 2024, pp. 171Contributions to Journals: Abstracts- [ONLINE] DOI:
- [ONLINE]