Dr Oliver Todd

Clinical Research Fellow


ORCID: 0000-0001-7212-8095

Dr Oliver Todd is a PhD Doctoral Research Fellow funded by the Dunhill Medical trust at the Academic Unit for Ageing and Stroke Research and specialist registrar in geriatrics and internal medicine at Bradford Teaching Hospitals NHS Foundation Trust.

Oly trained at Imperial College London, completed core medical training in Edinburgh, and went to work in Bielefeld, Germany where he led an observational study investigating the association between sleep disruption and delirium. Before coming to Bradford, he worked as medical registrar at St Francis Hospital, Katete, Zambia where he performed a delirium prevalence study in collaboration with Newcastle University. He is currently carrying out a PhD identifying the optimal blood pressure for frail older people. He is supervised by Dr Andy Clegg, Dr Marlous Hall, Professor Chris Gale, Mary Godfrey and Professor John Young.


Todd O, Young J, Clegg A. Optimising blood pressure management for older people with frailty. The Dunhill Medical Trust Research Training Fellowship £192,301, 2017 (36 months)


Wilkinson C, Clegg A, Todd O, Rockwood K, Yadegarfar ME, Gale CP, Hall M. Atrial fibrillation and oral anticoagulation in older people with frailty: a nationwide primary care electronic health records cohort study. Age Ageing 2020, afaa265, https://doi.org/10.1093/ageing/afaa265

Wilkinson C, Wu J, Searle SD, Todd O, Hall M, Kunadian V, Clegg A, Rockwood K, Gale CP. Clinical outcomes in patients with atrial fibrillation and frailty: insights from the ENGAGE AF-TIMI 48 trial. BMC Medicine 2020; 18:401. https://doi.org/10.1186/s12916-020-01870-w

Veenhuizen M, Todd O, Anand A, Whiteley W. How to design a hypertension treatment trial that informs care of older people with frailty: a survey of clinicians in Ireland and the UK Age Ageing 2020. afaa198, https://doi.org/10.1093/ageing/afaa198

Hale M, Zaman H, Mehdizadeh D, Todd O, Callaghan H, Gale CP, Clegg A. Association between Statins Prescribed for Primary and Secondary Prevention and Major Adverse Cardiac Events among Older Adults with Frailty: A Systematic Review. Drugs & Aging 2020; 37:787–799 https://doi.org/10.1007/s40266-020-00798-3

Headlam J, Wheeler A, Yuen K, Brierley E, Todd O. Disseminated Bacillus Calmette-Guerin (BCG): A cause of delirium in an older adult. Journal of the Royal College of Physicians Edinburgh. (in press)

Witham MD, Chawner M, Biase S, Offord N, Todd O, Clegg A, Sayer AA. Content of exercise programmes targeting older people with sarcopenia or frailty – findings from a UK survey Journal of Frailty Sarcopenia & Falls 2020; 5(1):17-23. doi: 10.22540/JFSF-05-017

Sheppard J, Lown M, Burt J, Temple E, Lowe R, Ashby H, Todd O, Allen J, Ford GA, Fraser R, Heneghan C, Hobbs R, Jowett S, Little P, Mant J, Mollison J, Payne R, Williams M, Yu L, McManus RJ. Generalisability of blood pressure lowering trials to older patients: cross-sectional analysis. Journal of American Geriatrics Society. (in press)

Todd OM, Burton JK, Dodds RM, Hollinghurst J, Lyons RA, Quinn TJ, Schneider A, Walesby KE, Wilkinson C, Conroy S, Gale CP, Hall M, Walters K, Clegg AP. New Horizons in the use of routine data for ageing research. Age Ageing 2020; afaa018, https://doi.org/10.1093/ageing/afaa018

Todd OM, Wilkinson C, Hale M, Wong NL, Hall M, Sheppard JP, McManus RJ, Rockwood K, Young J, Gale CP, Clegg A. Is the association between blood pressure and mortality in older adults different with frailty? A systematic review and meta-analysis. Age Ageing 2019;48(5):627-635. doi: 10.1093/ageing/afz072.

Witham MD, Roberts HC, Gladman J, Stott DJ, Aihie Sayer A, Aspray TJ, Brock P, Clegg A, Cox N, Ewan V, Frith J, Burton JK, Jackson T, Lewis EG, Lim SE, Makin S, Lochlainn MN, Richardson S, Shenkin SD, Steves CJ, Todd O, Tullo E, Walker R, Yarnall A. Extended Working Group* from the NIHR Newcastle Biomedical Research Centre Meeting. Growing research in geriatric medicine. Age Ageing. 2019 [online] doi: 10.1093/ageing/afy220

Wilkinson C, Todd O, Clegg A, Gale CP, Hall M. Management of atrial fibrillation for older people with frailty: a systematic review and meta-analysis. Age Ageing 2019;48(2)196–203. doi: 10.1093/ageing/afy180.

Teale EA, Siddiqi N, Clegg A, Todd OM, Young J. Non-pharmacological interventions for managing delirium in hospitalised patients. Cochrane Database of Systematic Reviews 2017(4):10 Apr 2017 doi 10.1002/14651858.CD005995.pub2

Todd OM, Gelrich L, MacLullich AM, Driessen M, Thomas C, Kreisel SH, (2017). Sleep Disruption at Home As an Independent Risk Factor for Postoperative Delirium. Journal of the American Geriatrics Society, doi 10.1111/jgs.14685

Todd OM, K Sikwewa, J Kamp, I Hodt Rasmussen, S Kudsk-Iversen, K Mortensen. (2015). Inadequate monitoring risks safety of blood transfusion in rural Zambia. International Symposium on Intensive Care and Emergency Medicine 19 Suppl 1 P338

O M Todd, A Heaven, E Teale, A Clegg. (2017). Poor Subjective Sleep quality associates variably with different frailty measures in cross-sectional study of community dwelling older people. British Geriatrics Society 2017 http://www.bgs.org.uk/abstracts/oup_spring2016.docx

Todd OM, Teale EA, (2017). Delirium: a guide for the general physician. Clinical medicine (London, England), 17 (1), pp. 48-53

Todd OM, Clegg AP, (2016). Moving upstream in the frailty trajectory. Age and ageing, 45 (4), pp. 438-9

Todd O, Clegg A, (2016). A Randomized Trial of Intensive versus Standard Blood-Pressure Control. The New England journal of medicine, 374 (23), pp. 2292 

Kilgour AH, Todd OM, Starr JM, (2014). A systematic review of the evidence that brain structure is related to muscle structure and their relationship to brain and muscle function in humans over the lifecourse. BMC geriatrics, pp. 85