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Dr Oliver Todd

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Clinical Lecturer

ORCID 0000-0001-7212-8095

Oliver is a doctor specialising in the care of older adults. His research focuses primarily on improving the management of hypertension in later life, and the use of big data and artificial intelligence to improve care of older adults. Oliver’s research is based in Bradford. Currently, he works clinically as a registrar at St James’s Hospital, Leeds Teaching Hospitals NHS Trust.

Recent Funding Awarded

Todd O. Stratified hypertension management in later life: establishment of cohort linkage between ambulatory blood pressure measurements and routine health and social care data in Connected Bradford at University of Leeds. The Academy of Medical Sciences £29,472.50; 01/09/2022 to 01/12/2023.

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

Recent Publications

Crocker TF, Ensor J, Lam N, Jordão M, Bajpai R, Bond M, Forster A, Riley R, Andre D, Brundle C, Ellwood A, Green J, Hale M, Mirza L, Morgan J, Patel I, Patetsini E, Prescott M, Ramiz R, Todd O, Walford R, Gladman J, Clegg A. Community based complex interventions to sustain independence in older people: systematic review and network meta-analysis BMJ 2024; 384 :e077764.

Best K, Todd O, Clegg A. Are frailty measurements derived using electronic health records fit for clinical use? Age and Ageing 2024;53(2):afae001.

Shiwani T, Relton S, Evans R, Kale A, Heaven A, Clegg A. Ageing Data Research Collaborative (Geridata) AI group, Todd O. New Horizons in artificial intelligence in the healthcare of older people, Age and Ageing 2023, 52(12): afad219.

Witham MD, Bridges J, Gladman J, Gordon A, Kay S, Manthorpe J, Roberts H, Rochester L, Todd O, Usman A, Sayer AA. Spotlight on the academic multidisciplinary team: proposals from the 3rd NIHR Newcastle BRC Academic Geriatric Medicine Workshop. Clinical Medicine 2023;23(6):611–614.

Braithwaite E, Todd OM, Atkin A, Hulatt R, Tadrous R, Alldred D, Pirmohamed M, Walker L, Lawton R, Clegg A. Interventions for reducing anticholinergic medication burden in older adults – a systematic review and meta-analysis. Age and Ageing 2023 52(9) 176.

Masoli JAH, Todd O, Burton JK, Wolff C, Walesby KE, Hewitt J, Conroy S, van Oppen J, Wilkinson C, Evans R, Anand A, Hollinghurst J, Bhanu C, Keevil VL, Vardy ERLC; Geridata Group. New horizons in the role of digital data in the healthcare of older people. Age and Ageing 2023;52(8):afad134.

Cheong VL, Mehdizadeh D, Todd OM, Gardner P, Zaman H, Clegg A, Alldred DP, Faisal M. The extent of anticholinergic burden across an older Welsh population living with frailty: cross-sectional analysis of general practice records. Age and Ageing 2023;52(7):afad136.

Ludlow K, Todd O, Reid N, Yaman H. Frailty in primary care: challenges, innovations, and future directions. BMC Primary Care 2023;24:129.

Todd O, Johnson O, Wilkinson C, Hollinghurst J, Dondo TB, Yadegarfar ME, Sheppard JP, McManus RJ, Gale CP, Clegg A. Attainment of NICE blood pressure targets among older people with newly diagnosed hypertension: nationwide linked electronic health records cohort study. Age and Ageing 2023;52(5). afad077.

Platt JR, Todd OM, Hall P, Craig Z, Quyn A, Seymour M, Brown M, Roodhard J, Punt C, Christou N, Taieb J, Karoui M, Brown J, Cairns DA, Mortaon D, Gilbert A, Seligmann JF. FOxTROT2: innovative trial design to evaluate the role of neoadjuvant chemotherapy for treating locally advanced colon cancer in older adults or those with frailty ESMO Open 2023;8(1):100642.

Summerfield C, Smith L, Todd O, Renzi C, Lyratzopoulos G, Neal RD, Jones D. The Effect of Older Age and Frailty on the Time to Diagnosis of Cancer: A Connected Bradford Electronic Health Records Study. Cancers 2022; 14(22):5666.

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. 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

Todd OM, Clegg A. Prognostic tools for the care of older adults presenting with trauma. Age and Ageing 2021. 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.

Masoli JAH, Todd OM, Clark CE. Systolic blood pressure and outcomes in frail older adults. British Journal of Hospital Medicine 2021;82(5).

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.

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,

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

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.

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

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,

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

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