Professor Craig Ramsay

Professor Craig Ramsay

Director of Health Services Research Unit

I am currently accepting PhDs in Dentistry and Nutrition and Health.

Professor Craig Ramsay
Professor Craig Ramsay

Contact Details

work +44 (0)1224 438142
fax +44 (0)1224 438165
The University of Aberdeen Health Services Research Unit (HSRU)
3rd Floor, Health Sciences Building,
Aberdeen AB25 2ZD


I am Director of the Health Services Research Unit and Professor of Health Care Evaluation. I also direct the Aberdeen Health Technology Assessment Group, which is the only academic centre in Scotland responsible for providing technology assessment reports for the UK National Institute for Health and Care Excellence.

I have wide ranging research interests in health services research with expertise in service improvement research, surgical trial evaluation, and quasi-experimental study designs and as statistical editor for the Cochrane Effective Practice and Organisation of Care group I have led the worldwide development of systematic review methodology for interrupted time series designs. I serve on several national and international committees and was an inaugural member of the Royal Society of Edinburgh Young Academy of Scotland.



PhD, Public Health University of Aberdeen 2000
PGDip, Information Systems Edinburgh Napier University 1994
BSc, Mathematics and statistics University of Edinburgh 1993

Research Areas

Please get in touch if you would like to discuss your research ideas further.

Email Me


  • Healthcare Science
  • Medical Statistics

Our research specialisms are based on the Higher Education Classification of Subjects (HECoS) which is HESA open data, published under the Creative Commons Attribution 4.0 International


My current supervision areas are: Nutrition and Health and Dentistry.

I provide PhD supervisory support for full or part-time PhD students. Some recent examples include: 

Research Funding and Grants

In terms of research grant awards, I have personally been involved as chief investigator or principal applicant on a portfolio of national and international studies generating in excess of £30 million, with £20 million in the last 5 years. The projects include a mix of large scale international trials and methodological studies funded from a variety of sources – all the studies are healthcare policy relevant and of national or international significance.



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  • Early detection of neovascular age-related macular degeneration: an economic evaluation based on data from the EDNA study

    Hernández, R., Banister, K., Goulao, B., Cook, J., Sivaprasad, S., Hogg, R. E., Azuara-Blanco, A., Heimann, H., Dimitrova, M. P., Gale, R., Porteous, M., Ramsay, C., Chakravarthy, U., Scotland, G.

    British Journal of Ophthalmology

    Contributions to Journals: Articles

  • Identification and categorisation of relevant outcomes for symptomatic uncomplicated gallstone disease: in depth analysis to inform the development of a core outcome set

    Cruickshank, M., Newlands, R., Blazeby, J. M., Ahmed, I., Bekheit, M., Croal, B. L., Innes, K., Ramsay, C., Gillies, K.

    BMJ Open, vol. 11, e045568

    Contributions to Journals: Articles

  • A Review of Aerosol Generation Mitigation in International Dental Guidance

    Robertson, C., Clarkson, J. E., Aceves Martins, M., Ramsay, C., Richards, D., Colloc, T., CoDER Working Group, Goulao, B.

    International Dental Journal

    Contributions to Journals: Articles

  • Interpretation of change scores for the National Eye Institute Visual Function Questionnaire-25: the minimally important difference

    Burr, J. M., Cooper, D., Ramsay, C. R., Che Hamzah, J., Azuara-Blanco, A.

    Br J Ophthalmol

    Contributions to Journals: Articles

  • Thematic analysis of Twitter communication of the UK public on dental health and care during a COVID lockdown: "My kingdom for a dentist"

    Rzewuska, M., Lamont, T. J., Banister, K., Gillies, K., Goulao, B., Locock, L., Nevin, G., Clarkson, J. E., Ramsay, C.

    Community Dental Health

    Contributions to Journals: Articles

  • Antibiotic prescribing for respiratory tract infection: exploring drivers of cognitive effort and factors associated with inappropriate prescribing

    McCleary, N., Francis, J. J., Campbell, M., Ramsay, C., Burton, C. D.

    Family Practice, cmab030

    Contributions to Journals: Articles

  • Selective caries removal in permanent teeth (script) for the treatment of deep caries lesions: A randomised controlled clinical trial in primary care

    Clarkson, J. E., Ramsay, C., Ricketts, D. N. J., Banerjee, A., Deery, C., Lamont, T. J., Boyers, D., Marshman, Z., Goulao, B., Bannister, K., Conway, D. I., Dawett, B., Baker, S. R., Sherriff, A., Young, L., van der Pol, M., MacLennan, G., Floate, R., Braid, H. J., Fee, P. A., Forrest, M., Gouick, J., Mitchell, F. E., Gupta, E., Dakri, R., Kettle, J., McGuff, T., Dunn, K.

    BMC Oral Health

    Contributions to Journals: Articles

  • Audit and feedback with or without training in-practice targeting antibiotic prescribing (TiPTAP): a study protocol of a cluster randomised trial in dental primary care

    Goulao, B., Scott, C. L., Black, I., Clarkson, J., McArthur, L., Ramsay, C., Young, L., Duncan, E.

    Implementation Science, vol. 16, 32

    Contributions to Journals: Articles

  • Protocol for a randomised controlled trial comparing laparoscopic cholecystectomy with observation/conservative management for preventing recurrent symptoms and complications in adults with uncomplicated symptomatic gallstones (C-Gall trial)

    Ahmed, I., Innes, K., Brazzelli, M., Gillies, K., Newlands, R., Avenell, A., Hernández, R., Blazeby, J., Croal, B., Hudson, J., MacLennan, G., McCormack, K., McDonald, A., Murchie, P., Ramsay, C.

    BMJ Open, vol. 11, no. 3, e039781

    Contributions to Journals: Articles

  • Examining the effectiveness of different dental recall strategies on maintenance of optimum oral health: the INTERVAL dental recalls randomised controlled trial

    Clarkson, J. E., Pitts, N. B., Fee, P. A., Goulao, B., Boyers, D., Ramsay, C., Floate, R., Braid, H. J., Ord, F. S., Worthington, H. V., van der Pol, M., Young, L., Freeman, R., Gouick, J., Humphris, G. M., Mitchell, F. E., McDonald, A., Norrie, J., Sim, K., Douglas, G., Ricketts, D. N. J.

    British Dental Journal, vol. 230, no. 4, pp. 236-243

    Contributions to Journals: Articles

  • Examining the impact of oral hygiene advice and/or scale and polish on periodontal disease: the IQuaD cluster factorial randomised controlled trial

    Clarkson, J., Ramsay, C., Lamont, T., Goulao, B., Worthington, H., Heasman, P., Norrie, J., Boyers, D., Duncan, A., van der Pol, M., Young, L., Macpherson, L., McCracken, G.

    British Dental Journal, vol. 230, no. 4, pp. 229-235

    Contributions to Journals: Articles

  • Outcomes of a non-inferiority randomised controlled trial of surgery for men with urodynamic stress incontinence after prostate surgery (MASTER)

    Abrams, P., Constable, L., Cooper, D., MacLennan, G., Drake, M. J., Harding, C., Mundy, A., McCormack, K., McDonald, A., Norrie, J., Ramsay, C., Smith, R., Cotterill, N., Kilonzo, M., Glazener, C., MASTER trial team

    European Urology

    Contributions to Journals: Articles

  • Risk-based, 6-monthly and 24-monthly dental check-ups for adults: the INTERVAL three-arm RCT

    Clarkson, J. E., Pitts, N. B., Goulao, B., Boyers, D., Ramsay, C. R., Floate, R., Braid, H. J., Fee, P. A., Ord, F. S., Worthington, H. V., van der Pol, M., Young, L., Freeman, R., Gouick, J., Humphris, G. M., Mitchell, F. E., McDonald, A., Norrie, J. D., Sim, K., Douglas, G., Ricketts, D. N. J.

    Health Technology Assessment, vol. 24, no. 60, pp. 1-172

    Contributions to Journals: Articles

  • Aerosol Generating Procedures and their Mitigation in International Dental Guidance Documents - A Rapid Review

    Clarkson, J. E., Ramsay, C., Richards, D., Robertson, C., Aceves Martins, M., Brazzelli, M., Calvert, G., Colloc, T., Dave, M., Glenny, A., Goulao, B., Lamont, T. J., Riley, P., Walsh, T., Wilson, G. J., Worthington, H. V., CoDER Working Group

    Cochrane Oral Health. 69 pages

    Books and Reports: Other Reports

  • Barriers and facilitators to implementation of antibiotic stewardship programmes in hospitals in developed countries: insights from transnational studies

    Rzewuska, M., Duncan, E., Francis, J. J., Morris, A. M., Suh, K. N., Davey, P. G., Grimshaw, J. M., Ramsay, C. R., The JPIAMR (Joint Programming Initiative on Antimicrobial Resistance) Working Group on Behavioural Approaches to Antibiotic Stewardship Programmes

    Frontiers in Sociology, vol. 5, 41

    Contributions to Journals: Articles

  • Three behavior change theory–informed randomized studies within a trial to improve response rates to trial postal questionnaires

    Goulao, B., Duncan, A., Floate, R., Clarkson, J., Ramsay, C.

    Journal of Clinical Epidemiology, vol. 122, pp. 35-41

    Contributions to Journals: Articles

  • Recommendations for the re-opening of dental services: a rapid review of international sources

    Clarkson, J., Ramsay, C., Aceves, M., Brazzelli, M., Colloc, T., Dave, M., Glenny, A., Goulão, B., Lamont, T. J., Richards, D., Robertson, C., Wilson, G. J., The COVID-19 Dental Services Evidence Review Working Group

    Cochrane Oral Health. 36 pages

    Books and Reports: Other Reports

  • A behavioural approach to specifying interventions: what insights can be gained for the reporting and implementation of interventions to reduce antibiotic use in hospitals?

    Duncan, E. M., Charani, E., Clarkson, J. E., Francis, J. J., Gillies, K., Grimshaw, J. M., Kern, W. V., Lorencatto, F., Marwick, C. A., McEwen, J., Möhler, R., Morris, A. M., Ramsay, C. R., Rogers Van Katwyk, S., Rzewuska, M., Skodvin, B., Smith, I., Suh, K. N., Davey, P. G.

    Journal of Antimicrobial Chemotherapy, vol. 75, no. 5, pp. 1338–1346

    Contributions to Journals: Articles

  • Trial Forge Guidance 2: how to decide if a further Study Within A Trial (SWAT) is needed

    Treweek, S., Bevan, S., Bower, P., Briel, M., Campbell, M., Christie, J., Collett, C., Cotton, S., Devane, D., El Feky, A., Galvin, S., Gardner, H., Gillies, K., Hood, K., Jansen, J., Littleford, R., Parker, A., Ramsay, C., Restrup, L., Sullivan, F., Torgerson, D., Tremain, L., von Elm, E., Westmore, M., Williams, H., Williamson, P. R., Clarke, M.

    Trials, vol. 21, 33

    Contributions to Journals: Articles

  • Practical help for specifying the target difference in sample size calculations for RCTs: The DELTA2 five-stage study, including a workshop

    Cook, J. A., Julious, S. A., Sones, W., Hampson, L. V., Hewitt, C., Berlin, J. A., Ashby, D., Emsley, R., Fergusson, D. A., Walters, S. J., Wilson, E. C., Maclennan, G., Stallard, N., Rothwell, J. C., Bland, M., Brown, L., Ramsay, C. R., Cook, A., Armstrong, D., Altman, D., Vale, L. D.

    Health Technology Assessment, vol. 23, no. 60

    Contributions to Journals: Articles

  • What methods are used to involve patients and the public in numerical aspects of research?: A scoping review

    Goulao, B., Campbell, M., Gillies, K., Ramsay, C.

    5th International Clinical Trials Methodology Conference, pp. 28-28

    Contributions to Journals: Abstracts

  • Can surgery be avoided in patients with symptomatic gallstone disease and no complications?

    Brazzelli, M., Avenell, A., Gillies, K., Ramsay, C., Ahmed, I.

    The BMJ, vol. 367, no. 8218, l5709

    Contributions to Journals: Comments and Debates

  • Five-Year Outcomes of a Randomized Trial of Treatments for Varicose Veins

    Brittenden, J., Cooper, D., Dimitrova, M., Scotland, G., Cotton, S. C., Elders, A., MacLennan, G., Ramsay, C. R., Norrie, J., Burr, J. M., Campbell, B., Bachoo, P., Chetter, I., Gough, M., Earnshaw, J., Lees, T., Scott, J., Baker, S. A., Tassie, E., Francis, J., Campbell, M. K.

    The New England Journal of Medicine, vol. 381, no. 10, pp. 912-922

    Contributions to Journals: Articles

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