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Contact information

Email
sofia.massa@ndorms.ox.ac.uk

Research groups

Colleges

St Catherine's College

Sofia Massa

PhD in Statistical Sciences

OCTRU Lead Statistician

I am a Lead Statistician in the Oxford Clinical Trial Research Unit within the Centre for Statistics in Medicine.

Previously I was a Senior Statistician and Module Lead in Statistics in the Nuffield Department of Population Health within the Big Data Insitute. I co-lead the statistical and methodological aspects of research studies involving large population studies (UK Biobank, China Kadoorie Biobank, Cuba Prospective Study, Life Line Screening, TILDA among others).

Recent publications

Medium-term recovery of patients with complex lower limb fractures : follow-up study of fracture types in the Wound Healing in Surgery for Trauma (WHIST) trial.

Goh EL. et al, (2026), Bone Joint J, 108-B, 681 - 687

Agreement and utility between registry and trial mortality data - a data utility comparison in the BOSS trial.

Zimmermann A. et al, (2026), Trials, 27

A0644 PRESIDENT: PRostatEctomy Surgery In Disseminated low-volume metastatic hormone sensitive prostate cancer with Endpoint assessment using Nuclear imaging Technology using PSMA (Prostate-Specific Membrane Antigen) PET/CT (Positron Emission Tomography/Computed Tomography) imaging: A definitive randomised controlled trial

Sooriakumaran P. et al, (2026), European Urology, 89, S1 - S1

What is the association between time to surgery and patient outcome after hip fracture? : a systematic review.

Mazarello Paes V. et al, (2026), Bone Joint J, 108-B, 30 - 38

PRESIDENT: PRostatEctomy Surgery In Disseminated low-volume metastatic hormone sensitive prostate cancer with Endpoint assessment using Nuclear imaging Technology using PSMA (Prostate-Specific Membrane Antigen) PET/CT (Positron Emission Tomography/Computed Tomography) imaging: A definitive randomised controlled trial

Sooriakumaran P. et al, (2026), EUROPEAN UROLOGY, 89

Barrett's Oesophagus Surveillance Versus Endoscopy at Need Study (BOSS): A Randomized Controlled Trial.

Old O. et al, (2025), Gastroenterology, 169, 1233 - 1243.e8

Lessons learned from the BOSS trial.

Old O. et al, (2025), Lancet Gastroenterol Hepatol, 10, 971 - 972

Cost-Effectiveness of Regular Surveillance Versus Endoscopy at Need for Patients With Barrett's Esophagus: Economic Evaluation Alongside the Barrett's Oesophagus Surveillance Study (BOSS) Randomized Controlled Trial.

Deidda M. et al, (2025), Gastroenterology, 169, 1244 - 1252.e7

A review of the statistical analysis of randomised controlled trials conducted within OCTRU.

Ooms A. et al, (2025), Trials, 26

622: BARRETT’S OESOPHAGUS SURVEILLANCE VERSUS ENDOSCOPY AT NEED STUDY (BOSS): A RANDOMIZED CONTROLLED TRIAL

Old O. et al, (2025), Gastroenterology, 169, S - 149

Su1221: COST-EFFECTIVENESS OF REGULAR SURVEILLANCE VERSUS ENDOSCOPY AT NEED FOR PATIENTS WITH BARRETT’S ESOPHAGUS: ECONOMIC EVALUATION ALONGSIDE THE BOSS RANDOMIZED CONTROLLED TRIAL

Old O. et al, (2025), Gastroenterology, 169

More publications