UCL Great Ormond Street Institute of Child Health


Great Ormond Street Institute of Child Health

Prof Mario Cortina Borja

Prof Mario Cortina Borja

Professor of Biostatistics

Population, Policy & Practice Dept

UCL GOS Institute of Child Health

Joined UCL
1st Apr 2002

Research summary

Mario is an applied statistician with a background in Actuarial Science and Mathematics; he has worked in many scientific areas. 

His present research involves:

Epidemiology of infectious disease, particularly HIV and Hepatitis C

Modelling physical activity using accelerometry data

Seasonal patterns, especially birthdays and the effect of date of birth on adult health

Record linkage methods

Modelling discrete, long-tailed  data

Modelling circular responses

Transformations in bounded outcome variables

Applications of copulae models

Teaching summary

Mario was 1st supervisor of 14 MSc students at Oxford and of 16 MSc/MRes students (2 as 2nd supervisor) and 30 PhD students (4 as 1st supervisor).


University of Bath
Doctorate, Doctor of Philosophy | 1992
Universidad Nacional Autonoma de Mexico (UNAM)
Other higher degree, Master of Science | 1985
Universidad Nacional Autonoma de Mexico (UNAM)
First Degree, Bachelor of Science | 1984


Background and Qualifications

Mario Cortina Borja has been at the UCL Institute of ChildHealth since October 2000; he was appointed Professor of Biostatistics in thePopulation, Policy and Practice Programme in 2015. Mario has a BSc in ActuarialScience and an MSc in Statistics from the Universidad Nacional Autónoma deMéxico, and a PhD in Statistics from the School of Mathematical Sciences at theUniversity of Bath for a thesis entitled Graph-theoretic nonparametricmultivariate procedures. 

Before coming to UCL Mario was a statistician at theInstituto de Investigaciones Antropológicas at the National AutonomousUniversity of Mexico, a research officer in applied mathematics at the Schoolof Chemical Engineering in the University of Bath, a lecturer, then seniorlecturer, in Statistics at the Instituto Tecnológico Autónomo de México, and,for five years, consulting and teaching officer in the Department ofStatistics, University of Oxford.


Mario’s h-index is 56 from >12500
 citations(google scholar, October 2021), and his Erdös number is 4. He has published over320 peer-reviewed papers, contributions to discussions, letters, and bookreviews in 130 different periodical publications and contributes topeer-reviewing for many academic journals, notably Archives of Disease inChildhood, The Lancet, Developmental Medicine and Child Neurology, Statisticsin Medicine, Statistica Neerlandica, and Biostatistics