Research Themes



BSc (Hons), MSc, PhD

Professor Gillian Heller

Professor of Biostatistics

Professor Gillian Heller joined the CTC as Professor of Biostatistics in 2020, in a part-time capacity. She coordinates the consulting and outreach activities of the biostatistics group, and is involved in design and analysis across multiple trials. 

From 2014 to 2019, Gillian was Chair of the Biostatistics Collaboration of Australia, a multi-institutional body that offers a postgraduate program in Biostatistics, across Australia.  She has over 30 years of experience as a biostatistician and academic statistician, most recently as Professor of Statistics at Macquarie University.



  1. Rigby RA, Stasinopoulos MD, Heller GZ, De Bastiani F (2019). Distributions for Modeling Location, Scale and Shape: Using GAMLSS in R. CRC Press.

  2. Stasinopoulos MD, Rigby RA, Heller GZ, Voudouris V, De Bastiani F (2017). Flexible Regression and Smoothing: Using GAMLSS in R. CRC Press.

  3. De Jong, P, Heller GZ (2008). Generalized Linear Models for Insurance Data. Cambridge University Press.


Refereed journal articles (last 5 years)

  1.  Almeida, LR, Heller, G, Allen, NE, Canning, CG, Sherrington, C, Valença, GT, Oliveira-Filho, J and Paul, SS (2019). Predicting falls in people with Parkinson’s disease: impact of methodological approaches on predictors identified. Aging clinical and experimental research, 1-10.
  2. Manuguerra M, Heller GZ, Ma J (2018). Continuous Ordinal Regression for Analysis of Visual Analogue Scales: The R Package ordinalCont, Journal of Statistical Software, accepted for publication.
  3. Morgan MK, O'Donnell JM, Heller GZ, Rogers JM (2018). Comparing outcome scales for unruptured intracranial aneurysms: A prospective cohort study, Journal of Clinical Neuroscience, 58, 56-63.
  4. Heller GZ, Couturier D-L, Heritier SR (2018). Beyond Mean Modelling: Bias due to Misspecification of Dispersion in Poisson-inverse Gaussian Regression, Biometrical Journal, 61:333–342.
  5. Karin E, Dear BF, Heller GZ, Crane MF, Titov N (2018). “Wish You Were Here”: Examining Characteristics, Outcomes, and Statistical Solutions for Missing Cases in Web-Based Psychotherapeutic Trials,  JMIR Mental Health 2018;5(2):e22. DOI: 10.2196/mental.8363
  6. Karin E, Dear BF, Heller GZ, Gandy M, Titov N (2018). Measurement of symptom change following web based psychotherapy – statistical characteristics and analytical methods for measuring and interpreting change. JMIR Mental Health, 5(3), e10200.
  7. Morgan MK, Heller GZ (2018). The role of embolization before surgery for Spetzler-Ponce Class B and C brain AVMs: a prospective cohort series. Journal of Neurosurgical Sciences, 62(4):429-36.
  8. Naidu SL, Heller GZ, Koroi S, Deakin L, Gyaneshwar R (2017). Knowledge, Attitude, Practice and Barriers Regarding Safe Sex and Contraceptive Use in Rural Women in Fiji. Pacific Journal of Reproductive Health, 1(5):223-231. DOI: 10.18313/pjrh.2017.901.
  9. O'Donnell JM, Morgan MK, Bervini D, Heller G, Assaad N (2016). The risk of seizure after surgery for unruptured intracranial aneurysms: A prospective cohort study. Neurosurgery, 79(2):222-30.
  10. Bervini, D., M. K. Morgan, M. A. Stoodley, and G. Z. Heller (2016). Transdural arterial recruitment to brain arteriovenous malformation: clinical and management implications in a prospective cohort series. Journal of Neurosurgery, 1-8.
  11. Heller, G. Z., M. Manuguerra, and R. Chow (2016). How to analyze the visual analogue scale: Myths, truths and clinical relevance. Scandinavian Journal of Pain, 13, 67-75.
  12. Morgan, M. K., M. K. Hermann Wiedmann, M. A. Stoodley, and G. Z. Heller (2016). Microsurgery for Spetzler-Ponce Class A and B arteriovenous malformations utilizing an outcome score adopted from Gamma Knife radiosurgery: a prospective cohort study. Journal of Neurosurgery, 1-12.
  13. Morgan, M. K., M. K. H. Wiedmann, N. N. Assaad, M. J. Parr, and G. Z. Heller (2016). Deliberate employment of postoperative hypotension for brain arteriovenous malformation surgery and the incidence of delayed postoperative hemorrhage: a prospective cohort study. Journal of Neurosurgery, 1-16.
  14. Morgan MK, Alsahli K, Wiedmann M, Assaad NN, Heller GZ (2016). Factors associated with proximal intracranial aneurysms to brain arteriovenous malformations: A prospective cohort study. Neurosurgery, 78(6):787-92, NEU-D-15-00630R2.
  15. Morgan MK, Wiedmann M, Assaad N, Heller GZ (2016). Complication-Effectiveness Analysis for brain arteriovenous malformation surgery. A prospective cohort study. Neurosurgery, 79(1):47-57.
  16. Morgan MK, Wiedmann M, Assaad NN, Heller GZ (2016). Complication-effectiveness analysis for unruptured intracranial aneurysm surgery: A prospective cohort study. Neurosurgery, 78(5):648-59 NEU-D-15-00595R.
  17. Naidu SL, Heller G, Qalomaiwasa G, Naidu S, Gyaneshwar R (2015). Knowledge, attitude practice and barriers regarding cervical cancer and its screening using Pap smear, in rural women of Ba, Lautoka and Nadi, Fiji. Pacific Journal of Reproductive Health; 1(2):50-59, 10.18313/pjrh.2015.913
  18. Dean RG, Dean J, Heller GZ, Leader LR (2015). A mass shooting at Port Arthur, Tasmania, Australia: A study of its impact on early pregnancy losses using a conception time based methodology. Human Reproduction, 30(11):2671-6, doi: 10.1093/humrep/dev200.
  19. Hu W, Swanson BA, Heller GZ (2015). A Statistical Method for the Analysis of Speech Intelligibility Tests. PLoS ONE, 10(7), e0132409. doi:10.1371/journal.pone.0132409
  20. Canning C, Sherrington C, Lord S, Close J, Heritier S, Heller GZ, Howard K, Allen N, Latt MD, Murray S, O’Rourke S, Paul S, Song J, Fung VSC (2015). Exercise for falls prevention in Parkinson’s disease: a randomized controlled trial, Neurology , 84: 304-312.
  21. Paul S, Allen N, Sherrington C, Heller G, Fung V, Close J, Lord S, Canning C (2014). Risk factors for frequent falls in people with Parkinson’s disease, Journal of Parkinson's Disease, 4:699-703.
  22. Sherrington C, Lord SR, Vogler CM, Close JCT, Howard K, Dean CM, Heller GZ, Clemson L, O’Rourke SD, Ramsay E, Barraclough E, Herbert RD, Cumming RG (2014). A post-hospital home exercise program improved mobility but increased falls in older people: a randomised controlled trial, PLOS ONE, 9(9): e104412. doi: 10.1371/journal.pone.0104412.



  1. Maurizio Manuguerra and Gillian Heller (2019). ordinalCont: Ordinal Regression Analysis for Continuous Scales. R package version 2.0.1.