Prof David Cromwell


United Kingdom

I studied mathematics at Warwick University before completing a Masters degree in Operational Research at Lancaster University. On graduating, I had various analytical jobs in health care organisations in the UK, the Netherlands and Australia. For 10 years, I was a researcher at the University of Wollongong, Australia, undertaking projects on various topics, including health care financing, and the coordination of care. I gained my PhD while at Wollongong. Before joining the LSHTM in 2005, I worked at the UK Healthcare Commission.


Department of Health Services Research and Policy
Faculty of Public Health and Policy


On the Public Health MSc, I am the organiser of Healthcare Evaluation and a seminar leader for Health Services. I also teach on courses about critical appraisal of the literature and statistics for The Royal College of Surgeons of England.

I am interested in supervising research degree students who wish to investigate how best to evaluate the performance of health services (notably surgery) using observational data (such as clinical or administative databases).


My research interests sit under the broad heading of improving the quality and use of information in the delivery of health care. This has involved developing quantitative models to aid health care management, evaluating health-related information systems, and undertaking statistical analyses to inform quality improvement initiatives or policy decisions. My current position as Director of the Clinical Effectiveness Unit of The Royal College of Surgeons of England means this general interest now focuses on issues related to evaluating the effectiveness of surgery.
Research Area
Health services research
Health outcomes
Applied statistics (medical)
Disease and Health Conditions
Non-communicable diseases
United Kingdom

Selected Publications

Surgical decisions in older women with early breast cancer: patient and disease factors.
Jauhari, Y; GANNON, MR; Dodwell, D; Horgan, K; Clements, K; MEDINA, J; CROMWELL, DA;
British journal of surgery
Treatment variation in early breast cancer in the UK.
Dodwell, D; Jauhari, Y; Gathani, T; CROMWELL, D; GANNON, M; Clements, K; Horgan, K;
Evaluation of the Coverage of 3 Antibiotic Regimens for Neonatal Sepsis in the Hospital Setting Across Asian Countries.
BIELICKI, JA; Sharland, M; Heath, PT; Walker, AS; Agarwal, R; Turner, P; CROMWELL, DA;
JAMA network open
Long-term survival after endovascular and open repair of unruptured abdominal aortic aneurysm.
Johal, AS; Loftus, IM; Boyle, JR; Heikkila, K; Waton, S; CROMWELL, DA;
Improving 1-Year Outcomes of Infrainguinal Limb Revascularization: Population-Based Cohort Study of 104 000 Patients in England.
HEIKKILA, K; Mitchell, DC; Loftus, IM; Johal, AS; Waton, S; CROMWELL, DA;
Understanding delays in chronic limb‐threatening ischaemia care: Application of the theoretical domains framework to identify factors affecting primary care clinicians' referral behaviours
Atkins, E; Birmpili, P; Kellar, I; Johal, AS; LI, Q; Waton, S; Boyle, JR; Pherwani, AD; Chetter, I; CROMWELL, DA;
Journal of Foot and Ankle Research
Surgical recovery from the COVID-19 pandemic in English adult neurosurgical centres.
Thompson, D; Williams, A; Whitfield, PC; Hutchinson, P; Phillips, N; CROMWELL, D; Helmy, A; National Neurosurgical Audit Programme,;
British journal of neurosurgery
Outcomes Following Intact and Ruptured Aneurysm Repair across Nations: Analysis of International Registry Data from the VASCUNET Collaboration 2014 - 2019.
Pherwani, AD; Johal, AS; CROMWELL, DA; Boyle, JR; Szeberin, Z; Venermo, M; Beiles, B; Khashram, M; Lattmann, T; Altreuther, ME; Laxdal, E; Behrendt, C-A; Mani, K; Budtz-Lilly, J; AAA Working Group Collaborators,;
European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery
The symptom to assessment pathway for suspected chronic limb-threatening ischaemia (CLTI) affects quality of care: a process mapping exercise.
Atkins, E; Kellar, I; Birmpili, P; Waton, S; LI, Q; Johal, AS; Boyle, JR; Pherwani, AD; Chetter, I; CROMWELL, DA;
BMJ open quality
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