Dr Oliver Todd

Clinical Lecturer


ORCID: 0000-0001-7212-8095

Dr Oliver Todd is an Academic Clinical Lecturer funded by NIHR at the Academic Unit for Ageing and Stroke Research and specialist training registrar in Geriatric and Internal Medicine at the Leeds Teaching Hospitals NHS Trust, currently working clinically at St James’s Hospital Leeds. Oly is primarily supervised in his lectureship by Professor Andrew Clegg.

Oly recently completed a PhD fellowship funded by Dunhill Medical Trust investigating whether frailty is useful in identifying older people who may come to harm from BP-lowering therapy.  He has a particular interest in cardiovascular ageing, as well as more broadly in research to improve the evidence base for the care of older people. Oly would be delighted to collaborate – please get in touch if you have shared interest/ would like to be involved in our research.

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.  Dr Oly Todd who has recently gained a Post-Doctoral Enrichment Award with the Alan Turing Institute.


Todd O, Hall M, Gale CP, Clegg AP. Does frailty modify the association of Blood Pressure and Outcomes in the Canadian Longitudinal Ageing Study Cohort British Geriatrics Society Specialist Registrar Start Up Grant (£2,858) 04/2018 –

Todd O, Young J, Hall M, Gale CP, Clegg AP. Can frailty inform the management of hypertension in in older people? (£192,301)
Dunhill Medical Trust Research PhD Training Fellowship. 10/2017 – 12/2020

Todd O, Flanagan KF. Does CMV affect the immunogenicity of BCG vaccination in Gambian infants? Elective at the Medical Research Council (UK), Fajara, The Gambia. Wellcome Trust Elective Grant (£1600); Pathology Society (£1200); Hammersmith Hospitals Elective Trust Fund (£500). 07/2007 – 09/2007


George G, Fricker M, Todd OM, Makowa D, Tembo C, Dotchin C, Gray WK, Walker RW, Mbwele B, Paddick SM (2022) Screening for delirium and dementia in older hospitalised adults in Zambia. Journal of the Neurological Sciences 2022. https://doi.org/10.1016/j.jns.2022.120186. Epub 2022

Wilkinson C, Wu J, Clegg A, Nadarajah R, Rockwood K, Todd O, Gale CP. Impact of oral anticoagulation on the association between frailty and clinical outcomes in people with atrial fibrillation: Nationwide primary care records on treatment analysis. EP Europace 2022;24(7)1065–1075 https://doi.org/10.1093/europace/euac022

Todd OM, Clegg A. Prognostic tools for the care of older adults presenting with trauma. Age and Ageing 2021. afab249, https://doi.org/10.1093/ageing/afab249

Evans NR, Todd OM, Minhas JS, Fearon P, Harston GW, Mant J, Mead G, Hewitt J, Quinn TJ, Warburton EA. EXPRESS: Frailty and Cerebrovascular Disease: Concepts and Clinical Implications for Stroke Medicine. International Journal of Stroke 2021. https://doi.org/10.1177/17474930211034331

Masoli JAH, Todd OM, Clark CE. Systolic blood pressure and outcomes in frail older adults. British Journal of Hospital Medicine 2021;82(5). https://doi.org/10.12968/hmed.2021.0181

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 May 2021 50(3):772-779

Chawner M, De Biase S, Offord NJ, Todd O, Clegg A, Sayer AA, Witham MD. Do Exercise Programmes For Older People With Sarcopenia Or Frailty Deliver An Evidence-Based Service? Findings From A UK Survey. Age Ageing 2021;50(1): i12–i42.

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 2020;50(2):152–155. https://doi.org/10.4997/JRCPE.2020.215

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 2020;68(11):2508-2515 https://doi.org/10.1111/jgs.16749

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