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Katie O'Brien Profile



I am an Adjunct Lecturer at the Department of Mathematics at CIT where I teach on the Data Analytics post-graduate course (postgraduate diploma and MSc).  My background is in mathematical modelling, in particular network models and statistical models. I also work half-time at the National Cancer Registry (NCR).

Previously I worked as a research fellow at the London School of Hygiene and Tropical Medicine and as a lecturer the University of Bristol in the Department of Engineering Mathematics and at University College Cork in the School of Mathematical Sciences.

I am interested in employing mathematical techniques to real world applications. When I worked at LSHTM, we applied network models to examine interventions for incidence reduction of HIV in Uganda. In my job at the NCR, I use statistical methods to examine cancer trends, in the evaluation of cancer screening programmes and other research questions.



  • B.A. Mathematics and Philosophy (Trinity College Dublin)
  • M.A. Mathematics (University College Cork)
  • M.Sc. Medical Statistics (London School of Hygiene and Tropical Medicine)
  • Ph.D. Mathematics (University College Cork)

Visits to other institutions


  • Delft Technical University, The Netherlands: Received bursary from Enterprise Ireland as part of its International Collaboration Programme (April 2000)
  • University of Bergen, Norway: Marie Curie fellowship from the European Commission (April-July 2002)
  • University of Notre Dame, Indiana, U.S.A: Senior mentor at the IMA (Institute for Mathematics and its Applications) summer school in Coding Theory and Cryptography (June 2004)
  • University of Mzuzu, Malawi: guest lecturer for the M.Sc. in Coding Theory. (July 2005)


Recent Papers


Please see here for further publications.


  1. Screening status, tumour subtype, and breast cancer survival: a national population-based analysis, O’Brien KM, Mooney T, Fitzpatrick P, Sharp L., Breast Cancer Res Treat. 2018 Jul 13. [Epub ahead of print].
  2. Oncologic treatment strategies and relative survival of patients with stage I-III rectal cancer - A EURECCA international comparison between the Netherlands, Belgium, Denmark, Sweden, England, Ireland, Spain, and Lithuania, Breugom AJ, Bastiaannet E, Boelens PG, Van Eycken E, Iversen LH, Martling A, Johansson R, Evans T, Lawton S, O’Brien KM, Ortiz H. Eur J Surg Oncol. 2018 May 26. [Epub ahead of print].
  3. Indicators for early assessment of palliative care in lung cancer patients: a population study using linked health data, Kelly M, O'Brien KM, Lucey M, Clough-Gorr K, Hannigan A. BMC Palliat Care. 2018;17(1):37.
  4. Mortality reductions due to mammography screening: Contemporary population-based data, Hanley JA, Hannigan A, O'Brien KM., PLOS ONE. 2017; 12(12):e0188947.
  5. In a bad place: Carers of patients with head and neck cancer experiences of travelling for cancer treatment, Balfe M, Keohane K, O'Brien KM, Gooberman-Hill R, Maguire R, Hanly P, O'Sullivan E, Sharp L., Eur J Oncol Nurs. 2017; 30:29-34.
  6. Physical after-effects of colposcopy and related procedures and their inter-relationship with psychological distress: a longitudinal survey. O'Connor M, O'Brien K, Waller J, Gallagher P, D'Arcy T, Flannelly G, Martin CM, McRae J, Prendiville W, Ruttle C, White C, Pilkington L, O'Leary JJ, Sharp L; Irish Cervical Screening Research Consortium (CERVIVA), BJOG: An International Journal of Obstetrics & Gynaecology, 124(9), 1402-1410.