Mark Pritchard, photographed in the Bonneville Salt Flats

I am a doctor undertaking specialty training in public health medicine at Oxford School of Public Health. I am currently taking time out of my public health training to complete a DPhil (PhD) modelling infectious disease dynamics at the University of Oxford. I am interested in finding ways to estimate the effectiveness of infection-prevention measures that have never been tested in clinical trials.

Publications

You can also find my publications on Google Scholar.

Where I was a lead author

  • COVID-19 symptoms at hospital admission vary with age and sex: results from the ISARIC prospective multinational observational study. Infection (2021) → Free full text

  • Enhanced recovery following hip and knee arthroplasty: a systematic review of cost-effectiveness evidence. BMJ Open (2020) → Free full text

  • Relationship of anxiety with joint pain and its management: A population survey. Musculoskeletal Care (2018) → Publisher’s website

  • Outcomes in children with protracted bacterial bronchitis confirmed by bronchoscopy. Archives of Disease in Childhood (2015) → Publisher’s website

  • Management of patients taking antiplatelet or anticoagulant medication requiring invasive breast procedures: United Kingdom survey of radiologists’ and surgeons’ current practice. Clinical Radiology (2008) → Publisher’s website

Where I was a contributing author

  • The burden and dynamics of hospital-acquired SARS-CoV-2 in England. Nature (2023) → Free full text

  • Characteristics and outcomes of an international cohort of 600 000 hospitalized patients with COVID-19. International Journal of Epidemiology (2023) → Free full text

  • An international observational study to assess the impact of the Omicron variant emergence on the clinical epidemiology of COVID-19 in hospitalised patients. Elife (2022) → Free full text

  • Symptom-based case definitions for COVID-19: Time and geographical variations for detection at hospital admission among 260,000 patients. Influenza and Other Respiratory Viruses (2022) → Free full text

  • Prospective validation of the 4C prognostic models for adults hospitalised with COVID-19 using the ISARIC WHO Clinical Characterisation Protocol. Thorax (2022) → Free full text

  • Ten months of temporal variation in the clinical journey of hospitalised patients with COVID-19: An observational cohort. Elife (2021) → Free full text

  • Stop COVID Cohort: An observational study of 3480 patients admitted to the Sechenov University Hospital Network in Moscow City for suspected Coronavirus Disease 2019 (COVID-19) infection. Clinical Infectious Diseases (2021) → Free full text

  • Evaluating clinical characteristics studies produced early in the Covid-19 pandemic: A systematic review. PLoS One (2021) → Free full text

  • Development and validation of the ISARIC 4C Deterioration model for adults hospitalised with COVID-19: a prospective cohort study. Lancet Respiratory Medicine (2021) → Free full text

  • Risk stratification of patients admitted to hospital with covid-19 using the ISARIC WHO Clinical Characterisation Protocol: development and validation of the 4C Mortality Score. The BMJ (2020) → Free full text

  • Clinical characteristics of children and young people admitted to hospital with covid-19 in United Kingdom: prospective multicentre observational cohort study. The BMJ (2020) → Free full text

  • The impact of the enhanced recovery pathway and other factors on outcomes and costs following hip and knee replacement: routine data study. Health Services and Delivery Research (2020) → Free full text

  • Cost-effectiveness of enhanced recovery in hip and knee replacement: a systematic review protocol. BMJ Open (2018) → Free full text

  • The effectiveness and safety of proton beam radiation therapy in children with malignant central nervous system (CNS) tumours: protocol for a systematic review. Systematic Reviews (2016) → Free full text

Erdős number

My Erdős number is at most 4:

Authors of this paper have an Erdős number of at most 1:
P. Erdős, S. J. Taylor. Some problems concerning the structure of random walk paths. Acta Mathematica Academiae Scientiarum Hungaricae 11: 137–62 (1960)

Authors of this paper have an Erdős number of at most 2:
J. F. C. Kingman, S. J. Taylor, A. G. Hawkes, A. M. Walker, D. R. Cox, A. F. M. Smith, B. M. Hill, P. J. Burville, T. Leonard. Random discrete distribution. Journal of the Royal Statistical Society Series B 37: 1–22 (1975)

Authors of this paper have an Erdős number of at most 3:
A. C. Ghani, C. A. Donnelly, D. R. Cox, J. R. Griffin, C. Fraser, T. H. Lam, L. M. Ho, W. S. Chan, R. M. Anderson, A. J. Hedley, G. M. Leung. Methods for estimating the case fatality ratio for a novel, emerging infectious disease. American Journal of Epidemiology, 162: 479–86 (2005)

Authors of this paper have an Erdős number of at most 4:
B. S. Cooper, S. Evans, Y. Jafari, T. M. Pham, Y. Mo, C. Lim, M. G. Pritchard, D. Pople, V. Hall, J. Stimson, D. W. Eyre, J. M. Read, C. A. Donnelly, P. Horby, C. Watson, S. Funk, J. V. Robotham, G. M. Knight. The burden and dynamics of hospital-acquired SARS-CoV-2 in England. Nature (2023)

Creativity

Photograph of a flamingo flying
Flamingo, at Pont de Gau

Acrylic painting of Broken Arch, Utah
Broken arch, Utah

Photograph of a polar bear looking at its reflection
Polar bear, near Sjuøyane

Ink drawing on Tower Bridge, London
Tower Bridge, London