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 15 of 29 Results 141 to 150 of 285
DELTA2 guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial
Trials, vol. 19, 606Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
- [ONLINE]
COMPARISON OF NINE SURGICAL TREATMENTS FOR WOMEN WITH STRESS URINARY INCONTINENCE: A COST-EFFECTIVENESS AND VALUE OF INFORMATION ANALYSIS
11th Annual European UroGynaecological Association CongressContributions to Conferences: Abstracts- [ONLINE]
A Systematic Review of Health Economic Evaluations of Surgical Treatments for Women with Stress Urinary Incontinence
ICS 2018Contributions to Conferences: AbstractsPartial factorial trials: comparing methods for statistical analysis and economic evaluation
Trials, vol. 19, 442Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
Cognitive behavioural therapy in clozapine-resistant schizophrenia (FOCUS): an assessor-blinded, randomised controlled trial
The lancet. Psychiatry, vol. 5, no. 8, pp. 633-643Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
Treatment of Advanced Glaucoma Study: a multicentre randomised controlled trial comparing primary medical treatment with primary trabeculectomy for people with newly diagnosed advanced glaucoma—study protocol
British Journal of Ophthalmology, vol. 102, no. 7, pp. 922-928Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
A Systematic Review of Health Economic Evaluations of Surgical Treatments for Women with Stress Urinary Incontinence
Health Technology Assessment international 2018 Annual MeetingContributions to Conferences: AbstractsTISU: Extracorporeal shockwave lithotripsy, as first treatment option, compared with direct progression to ureteroscopic treatment, for ureteric stones: study protocol for a randomised controlled trial
Trials, vol. 19, no. 1, pp. 1-11Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
Cancer and vitamin D supplementation: a systematic review and meta-analysis
The American Journal of Clinical Nutrition, vol. 107, no. 4, pp. 652-663Contributions to Journals: Articles- [ONLINE] DOI:
- [ONLINE]
Instrumental variable methods for a binary outcome were used to informatively address non-compliance in a randomised trial in surgery
Journal of Clinical Epidemiology, vol. 96, pp. 126-132Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]