Dr Maheswaran Rohan

Biostatistics and Epidemiology

Phone: +64 9 921 9999 Ext 6648

Email: mrohan@aut.ac.nz

Physical Address:
AUT University (Room AF210B)
North Shore Campus
90 Akoranga Drive, Northcote
Auckland, New Zealand


PhD in Statistics
MSc (Hons) in Statistics
BSc (Hons) in Statistics and Mathematics

Memberships and Affiliations:

Member of New Zealand Statistical Association (NZSA)
NZSA Conference organising committee – 2016, 2013 and 2008


Prior to joining AUT University, Rohan was a Scientist with the Department of Conservation in Hamilton, New Zealand for nearly 8 years. Earlier he worked in a number of academic roles in the Faculty of Arts and Social Science at the University of Waikato, and Faculty of Science, Eastern University Sri Lanka.

Teaching Areas:

  • Quantitative Research II
  • Introduction to basic R
  • R Graphs
  • Basic Statistical Methods with R

Research Areas:

Rohan has developed a unified framework to compute robust statistics for various statistical models parameters. In addition, his applied research involves medical statistics, ecological statistics and statistics education, especially in how to teach statistics for non-statisticians.

Current Research Projects:

Lupus and gout foot study, Hernia trial, Rehabilitation with older people's health, Stop Drink Driving, Oral health, Ultrasound elastography measurement, Politicisation of local government in Auckland and Outcomes after trauma study (OATS).


Book Chapter:

Westbrooke, I., Rohan, M., (2014) Statistical Training In The Workplace,  Australian Conference on Teaching Statistics - Topics from OZCOTS 2008-2012, Springer, New York.

Invited Pre-conference Workshops:
Maindonald, J., Rohan, M (Nov 2015), Modern Regression Techniques in R, NZSA + ORSNZ conference 2015, Christchurch, New Zealand – One Full Day

Rohan, M, (Dec 2011) Using R-Commander and R for Statistical Research, International Statistics Conference, Colombo, Sri Lanka - One Full Day

Recent Peer Reviewed Journal Articles:

Kulasegaran S, Rohan, M, Pearless L.M. N, Hulme-Moir, M. (2017), Pre-Peritoneal Local Anaesthetic does not reduces post-operative pain in Laparoscopic total extra-peritoneal hernia repair: A Double Blinded Randomized Controlled Trial, Hernia, DOI 10.1007/s10029-017-1672-1

Otter, S., Rohan, M, Davies, K., Kumar, S., Gow, P., Dalbeth, N., Corkill, M., Pankathelam, S., Rome, K., (2017), Categorisation of foot complaints in systemic lupus erythematosus (SLE) from a New Zealand cohort, Journal of Foot and Ankle Research,10:33

Tillson, T., Rohan, M, Larmer, P. (2017), The use of a functional mobility measure to predict discharge destinations for patients admitted to an older persons rehabilitation ward: A feasibility study, Australasian Journal on Ageing, accepted.

E. D'Artibale, Rohan, M, J. B. Cronin, (2017), Trend analysis of 20 years of FIM road racing Grand Prix motorcycle world championship, International Journal of Sports Physiology and Performance, accepted.

Dedual M, Rohan, M (2016), Long-term trends in the catch characteristics of rainbow trout Oncorhynchus mykiss, in a self-sustained recreational fishery, Tongariro River, New Zealand. Fisheries Management and Ecology 23(3-4):234-242

Otter S, Kumar S, Gow P, Dalbeth N, Corkhill M, Rohan, M, Davies KA, Pankathlem S, Rome K. (2016), Patterns of foot complaints in systemic lupus erythematosus: A cross sectional survey, Journal of Foot & Ankle Research 9(10)

Koziol-McLain J, McLean C, Rohan, M, Sisk R, Dobbs T, Nada-Raja S, Wilson D, Vandal AC. (2016), Participant Recruitment and Engagement in Automated eHealth Trial Registration: Challenges and Opportunities for Recruiting Women Who Experience Violence, J Med Internet Res 18(10)

Murphy EC, Gillies C, Maddigan F, McMurtrie P, Edge K-A, Rohan, M, Clapperton BK, (2016). Flexibility of diet of stoats on Fiordland Islands, New Zealand. New Zealand Journal of Ecology 40(1)

Kulasegaran S, Rohan, M, Pearless L, Hulme-Moir M. (2016) Double blinded randomised controlled trial of pre-peritoneal local anaesthetic in laparoscopic total extra-peritoneal hernia repair (Abstract), ANZ Journal of Surgery 86(S1):46

Otter S, Kumar S, Gow P, Dalbeth N, Corkill M, Davies K, Panthakalam S, Rohan, M, Rome K. (2016), Experience of foot problems in patients with systemic lupus erythematosus (Abstract). Journal of Foot and Ankle Research 9(S1):3

Rohan, M, Fairweather A, Grainger N (2015). Using gamma distribution to determine half-life of rotenone, applied in freshwater. Science of the Total Environment 527-528C:246-251

Holzapfel SA, Dodgson J, Rohan, M, (2015). Successful translocation of the threatened New Zealand root-holoparasite Dactylanthus taylorii (Mystropetalaceae). Plant Ecology, DOI 10.1007/s11258-015-0556-7

Srinivasan, P., Sarmah, A., Rohan, M, (2014) Deriving dissipation endpoints for sulfamethoxazole antibiotic in pasture soils with three non-linear kinetic models, Science of the Total Environment 488-489:146-156

Anderson S. J,Woolmore C. B., Westbrooke I. M., and Rohan, M (2014), Applying Triclopyr to Lupinus polyphyllus Before Seed Pods Mature Affects Seed Development and Viability, New Zealand Journal of Botany, 52(4):407-416

Watts, C., Thornburrow, D.,Rohan, M, Stringer, I. (2013),  An Effective Monitoring technique for arboreal giant weta (Deinacrida heteracantha and D. mahoenui; Orthoptera: Anostostomatidae),  Journal of Orthoptera Research, 22(2), 93 - 100

Rohan, M, Westbrooke, I (2012), Using R Commander for Statistical Training in the Workplace, Proceedings of the 8 th Australian Conference on Teaching Statistics (OZCOTS), Adelaide  – Full Paper

Green, W., Rohan, M (2012) Opposition to aerial 1080 poisoning for control of invasive mammal in New Zealand: Risk perceptions and agency responses, Journal of the Royal Society of New Zealand,  42 (3), 185 - 213

Watts, C., Empson, R., Thornburrow, D., Rohan, M, (2012) Movements, behaviour and survival of adult Cook Strait giant weta (Deinacrida rugosa; Anostostomatidae; Orthoptera) immediately after translocation as revealed by radio-tracking, Journal of Insect Conservation, 16 (5), 763 – 776

Watts C, Rohan, M, Thornburrow D., (2012),  Beetle community responses to grey willow (Salix cinerea) invasion within three New Zealand wetlands, New Zealand Journal of Zoology 39(3), 209-227

Hillock, K. A., Rohan, M (2011), Intertidal benthic habitats of Kawhia and Aotea Harbours, New Zealand, DOC Research & Development Series (ISSN 1176–8886), Dept. of Conservation, Wellington.

Sarmah, A. K., Rohan, M, (2011), Evaluation of four mathematical models to describe dissipation kinetics of 4-n-nonylphenol and bisphenol-A in groundwater-aquifer material slurry. Journal Environmental Monitoring, 13 (i), 157 - 166

Buckley, T., Gleeson, D., Attanayake, D., Howitt. R., Park, D., Stringer, I., Parrish, R., Sherley, G., Rohan, M ( 2011),  A revision of the New Zealand Placostylus landsnails using mitochondrial DNA and shell morphometric analyses, with implications for conservation., New Zealand Journal of Zoology, 38 (i), 55 -81

Rohan, M, and Jones, G. (2000), Efficient Run Orders For A Two-Factor Response Surface Experiment On A Correlated Process Communications in Statistics – Theory and Methods, 29 (iii), 593 – 609


Czuba, K., Anstiss, D., Kersten, P., Rohan, M., Terry, G., Kayes, N., Smith, G., Siegrt, R., (2017), Outcomes after trauma study, Report to Accident Compensation Corporation (ACC), New Zealand 1-172.

Siegert R, Smith G, Czuba K, Rohan, M, Kayes N, Kersten P. (2016), Outcomes after Trauma study –interim report for ACC, Auckland University Technology, Auckland 1-14.

Abbott M, Bellringer M, Palmer du Preez K, Rohan, M, Garrett N, Landon J, Hodgins D. (2015), An outcome study of a problem gambling brief telephone intervention: Three years later. Auckland University of Technology, Auckland. 1-89

Rohan, M  (2014), The Link Between R and Database, Department of Conservation, New Zealand

Gautam, M., Westbrooke, I., Rohan, M (2008), Assessment of biodiversity monitoring projects, Department of Conservation, New Zealand.

Rohan, M., Mittinty, M., Taylor, P.R. (2007): Aspects of estimating species proportions in the jack mackerel fishery: JMA 7 estimates using a Bayesian approach and examination of sampling bias in JMA 1 resulting from automated grading. New Zealand Fisheries Assessment Report, NIWA

Study Guide:

Duncan, R., Rohan, M, Westbrooke, I. (2007), A Handbook of Analysis of Repeated Measures Using R (Lecture notes)


Rohan, M, Using Finite Mixtures to Robustify Statistical Models. Ph.D thesis, University of Waikato.

Rohan, M, Some Results On The Choice Of Run Order For Experimental Designs With Correlated Errors, M.Sc thesis, Massey University.


Conference Presentations:

M Rohan, (2017), Computation of influence functions for robust statistics, Joint conference of The International Association of Statistical Computing (IASE) and New Zealand Statistical Association (NZSA), Auckland, New Zealand, 10th Dec - 14th Dec 2017

Kulasegaran S, Rohan, M, Pearless L, Hulme-Moir M, (2016), New Zealand Association of General Surgeons 2016, Auckland, New Zealand, 12 Mar 2016 - 13 Mar 2016. NZAGS 2016 Handbook. 36-36.

Palmer du Preez K, Abbott M, Bellringer M, Landon J, Garrett N, Rohan, M. (2016), Effectiveness of brief telephone interventions: An uncontrolled outcome study - 3 years later. International Gambling Conference 2016, Auckland, New Zealand, 10 Feb 2016 - 12 Feb 2016.

Balalla S, Theadom A, Jones K, Christey G, Holmes S, Feigin V, Rohan, M. (2016),  Risk of medical comorbidities after traumatic brain injury – Methods for a case-control study. New Zealand Applied Neurosciences Conference, Auckland, New Zealand, 24 Nov 2016 - 26 Nov 2016. Neuroepidemiology, 47: 141-141.

Rohan, M, Fairweather A, Grainger N. (2015) Computing Standard Error for Half-life of Rotenone,  Biometrics by the Harbour, Conference of the International Biometric Society (IBS) – Australasian Region, Hobart, Tasmania, Australia.

Rohan, M, Vandal AC, McLean C, Koziol-McLain J. (2015), Modelling the Impact of Trade Me Advertisements on Study Recruitment. Joint NZSA\ORSNZ Conference, Christchurch, New Zealand.

Palmer du Preez K, Abbott M, Bellringer M, Landon J, Garrett N, Rohan, M. (2015), Effectiveness of brief telephone interventions: An uncontrolled outcome study - 3 years later. National Association for Gambling Studies 25th annual conference, Adelaide, Australia.

Rohan, M, Vandal A, McLean C, Koziol-Mclain J. (2015), Using the Koyck model to understand the relationship between study recruitment and advertising.  AUT MATHEMATICAL SCIENCES SYMPOSIUM, WT Tower, Mathematical Sciences Research Group, Auckland University of Technology, Auckland, New Zealand.

Rohan, M., Fairweather, A., Grainger, N., (2014), Computing half-life of Rotenone in New Zealand water-body, Joint New Zealand Statistical Association/Operations Research Society of New Zealand 2014 Joint Conference, Wellington, New Zealand.

Rohan, M, (July 2012), Unified Framework for Computation of Robust Statistics, Australian Statistical Conference, Adelaide

Rohan, M, Westbrooke, I (July 2012), Using R Commander for Statistical Training in the Workplace, Australian Conference on Teaching Statistics (OZCOTS), Adelaide

Watts, C., Rohan, M, and Thornburrow, D., (Aug 2011), Willlows and weevile beetle community responses to grey willow (Salix cinerea) invasion within three Waikato wetlands, New Zealand Ecological Society Conference, Rotorua.

Rohan, M., Green, W., (July 2011), Analysis of Submissions Against 1080 Use, Science Congress, Department of Conservation, Wellington.

Rohan, M., (June 2010), Using Finite Mixtures to Compute Robustified Statistics for Regression Parameters, NZSA Conference, Palmerston North.

Westbrooke, I., Rohan, M., (June 2010), R with menus - R Commander software for teaching statistics to non-statisticians, NZSA conference, Palmerston North.

Hillcock, K.A,  Ivamy, M. Rohan, M (2008), Shellfish resource mapping in Kawhia Habour, New Zealand Marine Science Society Conference.

Rohan, M., (2008), Application of Longitudinal Data Analysis for ecological monitoring data, Statistics Forum, Palmerston North.

Rohan, M, (2008), New Approach to Robust Estimation, NZSA conference, Hamilton.

Westbrooke, I., Rohan, M, (2007), Analysis of Repeated Measures, Winter Science Convention, Wellington.

Invited Presentations:

Rohan, M., (2017), Influence functions for robust statistics, Analytics / Statistics Research Seminar, Department of Mathematical Sciences, Auckland University of Technology, Auckland.

Rohan, M., (2016), Basic Concepts of Statistical Significance, Quantitative Discussion Group, Auckland University of Technology, Auckland.

Rohan, M., (Sept 2012), Statistical Training in the Workplace using R Commander, The University of Waikato, Hamilton

Rohan, M., (July 2012), Research and Application of Statistics at Work Place, University of South Australia, Adelaide.

Rohan, M., (April 2011), Statistical modelling using R-commander, Secretariat of the Pacific Community (SPC), New Caledonia.

Westbrooke, I., Rohan, M., (June 2010), R with menus - R Commander software for teaching statistics to non-statisticians, Public Health, University of Otago, Christchurch

Rohan, M., (2009), Longitudinal Data Analysis for Ecological Monitoring, Public Health, University of Otago, Christchurch.

Rohan, M. (2006), Using Bayesian Method to Estimate the Jack Mackerel Species Proportions, Ministry of Fisheries, Wellington. 

Last updated: 13-Nov-2017 11.20am

The information on this page was correct at time of publication. For a comprehensive overview of AUT qualifications, please refer to the Academic Calendar.