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My main research interests are in the use of routine, secondary care data for health care quality improvement, service delivery and organisation research. This has included work on the national Patient Reported Outcome Measures (PROMs) programme for elective surgery in England and the modernisation of adult critical care services in England in collaboration with the Intensive Care National Audit & Research Centre (ICNARC). I also have an interest in vasculitis and polymyalgia rheumatica including work on vasculitis classification criteria (DCVAS) and temporal artery ultrasound in giant cell arteritis (TABUL).

I work as a methodologist at NATCAN, the National Cancer Audit Collaborating Centre based in the Clinical Effectiveness Unit at the Royal College of Surgeons of England.

I am also involved in several studies using routine data that mostly use target trial approaches and instrumental variable methods to assess the effectiveness and cost-effectiveness of surgery: ESORT (Emergency Surgery OR noT), ESORT-C19, ESORT-VASC (vascular ESORT) and SORT (Surgery Or RadioTherapy).

I am a member of the research partnership team and deputy theme lead for the Health Economics and Data theme at the North Thames Applied Research Collaboration (ARC). I was a statistical editor for the Cochrane Effective Practice and Organisation of Care (EPOC) group and the journal Health Policy and Planning. I am a trustee and board member of Health Services Research UK.