series event

A celebration of 50 Years of the Cox model in memory of Sir David Cox

David Cox
Photo shows Sir David Cox speaking at the Royal Statistical Society Conference. Photo credit: Royal Statistical Society.

Centre for Statistical Methodology Symposium 

Co-hosted by the Royal Statistical Society, The Department of Statistics at the University of Oxford, and the Department of Mathematics at Imperial College.

It is 50 years since Sir David Cox’s seminal paper on what is now called the Cox model for the analysis of event time data was published in the Journal of the Royal Statistical Society (Cox, DR. Regression Models and Life Tables. JRSS (Series B) 1972; 34(2): 187-202.). The Cox model has been used in applications across many areas of research, as well as inspiring wide-ranging methodological developments. It is one of the most highly cited scientific papers. 

This one-day symposium will celebrate 50 years of the Cox model and will remember the work of Sir David Cox (1924-2022) more generally, including some of his many other contributions to statistics. The full list of speakers and schedule for the day is shown below.

The symposium will take place at LSHTM, in the building where David Cox read his paper to the Royal Statistical Society in 1972. 

Refreshments and lunch will be served, and the day will be followed by an evening reception.


11.00-11.10: Welcome and Introduction

Chair: Ruth Keogh (LSHTM)

11.10-12.30: Session 1

Chair: Ruth Keogh (LSHTM)


  •  Partial likelihood 
  •  50 years with the Cox model: history, influence and future
12.30-13.15: Break

Lunch break

13.15-14.55: Session 2 

Chair: David Firth (University of Warwick)

Themed talks and discussion: Methodological extensions from the Cox model

  •  The Fine-Gray model for competing risks and the problem of total failure probability exceeding one 
  •  Some statistical aspects of multi-state models for complex processes in Psoriatic Arthritis 
    • Speaker: Brian Tom (University of Cambridge)


  •  D. R. Cox: aspects of scientific inference
14.55-15.15: Break

Coffee break

15.15-16.15: Session 3

Chair: Christl Donnelly (University of Oxford and Imperial College London)

Themed talks and discussion: Challenges and opportunities of Big Data  

  • Biases in Electronic Health Records: The Curse of Large N 
  • Opportunities for near real-time monitoring of treatment effects using the OpenSAFELY platform 


    16.15-16.35: Break

    Coffee break

    16.35-17.45: Session 4

    Chair: Bianca De Stavola (UCL)


    • Regression by Composition 

    Memories of Sir David Cox: Contributions from the audience 

    17.45-19.30: Reception

    Reception in the South Courtyard


    In-person tickets are now sold out, please either join the waiting list or follow the broadcast link. The recording will be uploaded to this page post-event.


    Collaborators logo - LSHTM Centre for Statistical Methodology, Royal Statistical Society, Imperial College and University of Oxford


    Follow recording link. Free and open to all. No registration required.