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Otago Medical School staff profiles

William Leung

PositionSenior Lecturer
DepartmentDepartment of Public Health (Wellington)
QualificationsMSc (Op Res), MSc (Comp Sci), MSc (Health Econ)
Research summaryHealth Economics

Research

William is the University of Otago, Wellington School of Medicine’s health economist. Recent projects have included meta-analyses of the effect of calcium intake on fracture and bone mineral density (with Distinguished Professor Ian Reid), and within-trial and decision-analytic cost-effectiveness analyses in areas such as CVD, diabetes, mental health, oncology, physical activity, respiratory disease, smoking cessation, and sun safety. He is leading the economic component of the US Centers for Disease Control and Prevention-funded Southern Hemisphere Influenza and Vaccine Effectiveness Research and Surveillance (SHIVERS) multi-agency project, and is part of several international health economics collaborations eg Single Pill to Avert Cardiovascular Events, multiple sclerosis, and neuro-endocrine tumours.

Within New Zealand, he is involved with external consultancy work for government agencies, often with health economist colleagues in Dunedin campus. For example, The Royal Society of New Zealand’s 2017 evidence update of antimicrobial resistance, and peer reviewing, for the Social Policy Evaluation and Research Unit (Families Commission), PwC’s economic evaluation of the Prime Minister’s $64m Youth Mental Health Project.

Before training as a health economist at the University of York, he was an operational research analyst (working with Professor Val Belton, Dr. Mark Elder and others) in the British National Health Service applying discrete-event simulation and other tools to modelling cancer treatment pathways.

Publications

Leung, W., Roberts, V., Gordon, L. G., Bullen, C., McRobbie, H., Prapavessis, H., … Maddison, R. (2017). Economic evaluation of an exercise-counselling intervention to enhance smoking cessation outcomes: The Fit2Quit trial. Tobacco Induced Diseases, 15, 21. doi: 10.1186/s12971-017-0126-y

Leung, W., Kvizhinadze, G., Nair, N., & Blakely, T. (2016). Adjuvant trastuzumab in HER2-positive early breast cancer by age and hormone receptor status: A cost-utility analysis. PLoS Medicine, 13(8), e1002067. doi: 10.1371/journal.pmed.1002067

Bolland, M. J., Leung, W., Tai, V., Bastin, S., Gamble, G. D., Grey, A., & Reid, I. R. (2015). Calcium intake and risk of fracture: Systematic review. BMJ, 351, h4580. doi: 10.1136/bmj.h4580

Tai, V., Leung, W., Grey, A., Reid, I. R., & Bolland, M. J. (2015). Calcium intake and bone mineral density: Systematic review and meta-analysis. BMJ, 351, h4183. doi: 10.1136/bmj.h4183

Maddison, R., Pfaeffli, L., Whittaker, R., Stewart, R., Kerr, A., Jiang, Y., … Leung, W., … Rawstorn, J. (2015). A mobile phone intervention increases physical activity in people with cardiovascular disease: Results from the HEART randomized controlled trial. European Journal of Preventive Cardiology, 22(6), 701-709. doi: 10.1177/2047487314535076

Journal - Research Article

Gage, R., Leung, W., Stanley, J., Reeder, A., Mackay, C., Chambers, T., Smith, M., Barr, M., & Signal, L. (2019). Studying third-parties and environments: New Zealand sun-safety research. Health Promotion International, 34(3), 440-446. doi: 10.1093/heapro/dax094

Nghiem, N., Cleghorn, C. L., Leung, W., Nair, N., van der Deen, F. S., Blakely, T., & Wilson, N. (2018). A national quitline service and its promotion in the mass media: Modelling the health gain, health equity and cost-utility. Tobacco Control, 27(4), 434-441. doi: 10.1136/tobaccocontrol-2017-053660

Anderson, Y. C., Leung, W., Grant, C. C., Cave, T. L., Derraik, J. G. B., Cutfield, W. S., … Sullivan, T. A. (2018). Economic evaluation of a multi-disciplinary community-based intervention programme for New Zealand children and adolescents with obesity. Obesity Research & Clinical Practice. Advance online publication. doi: 10.1016/j.orcp.2018.04.001

Gage, R., Leung, W., Stanley, J., Reeder, A., Mackay, C., Smith, M., Barr, M., Chambers, T., & Signal, L. (2018). Sun protection among New Zealand primary school children. Health Education & Behavior, 45(5), 800-807. doi: 10.1177/1090198117741943

Gage, R., Barr, M., Stanley, J., Reeder, A., Mackay, C., Smith, M., Chambers, T., Leung, W., & Signal, L. (2018). Sun protection and shade availability in New Zealand's outdoor recreation spaces. New Zealand Medical Journal, 131(1484), 30-37. Retrieved from https://www.nzma.org.nz/journal

Leung, W., Roberts, V., Gordon, L. G., Bullen, C., McRobbie, H., Prapavessis, H., … Maddison, R. (2017). Economic evaluation of an exercise-counselling intervention to enhance smoking cessation outcomes: The Fit2Quit trial. Tobacco Induced Diseases, 15, 21. doi: 10.1186/s12971-017-0126-y

Gage, R., Leung, W., Stanley, J., Reeder, A., Barr, M., Chambers, T., Smith, M., & Signal, L. (2017). Clothing protection from ultraviolet radiation: A new method for assessment. Photochemistry & Photobiology, 93(6), 1513-1518. doi: 10.1111/php.12803

Leung, W., Kvizhinadze, G., Nair, N., & Blakely, T. (2016). Adjuvant trastuzumab in HER2-positive early breast cancer by age and hormone receptor status: A cost-utility analysis. PLoS Medicine, 13(8), e1002067. doi: 10.1371/journal.pmed.1002067

Maddison, R., Pfaeffli, L., Whittaker, R., Stewart, R., Kerr, A., Jiang, Y., … Leung, W., … Rawstorn, J. (2015). A mobile phone intervention increases physical activity in people with cardiovascular disease: Results from the HEART randomized controlled trial. European Journal of Preventive Cardiology, 22(6), 701-709. doi: 10.1177/2047487314535076

Bolland, M. J., Leung, W., Tai, V., Bastin, S., Gamble, G. D., Grey, A., & Reid, I. R. (2015). Calcium intake and risk of fracture: Systematic review. BMJ, 351, h4580. doi: 10.1136/bmj.h4580

Tai, V., Leung, W., Grey, A., Reid, I. R., & Bolland, M. J. (2015). Calcium intake and bone mineral density: Systematic review and meta-analysis. BMJ, 351, h4183. doi: 10.1136/bmj.h4183

Maddison, R., Roberts, V., McRobbie, H., Bullen, C., Prapavessis, H., Glover, M., … Leung, W., … Tsai, M. (2014). Exercise counseling to enhance smoking cessation outcomes: The Fit2Quit Randomized Controlled Trial. Annals of Behavioral Medicine, 48, 194-204. doi: 10.1007/s12160-014-9588-9

North, N., Leung, W., & Lee, R. (2014). Aged over 50 years and practising: Separation and changes in nursing practice among New Zealand's older Registered Nurses. Journal of Advanced Nursing, 70(12), 2779-2790. doi: 10.1111/jan.12426

North, N., Leung, W., & Lee, R. (2014). New graduate separations from New Zealand's nursing workforce in the first 5 years after registration: A retrospective cohort analysis of a national administrative data set 2005-2010. Journal of Advanced Nursing, 70(8), 1813-1824. doi: 10.1111/jan.12339

Milsom, S., Leung, W., Twigden, V., Mitchell, P., Nowitz, M., & Cornish, J. (2013). Does insufficient access to dual-energy X-ray absorptiometry (DXA) stifle the provision of quality osteoporosis care in New Zealand? Archives of Osteoporosis, 8, 120. doi: 10.1007/s11657-013-0120-9

North, N., Leung, W., Ashton, T., Rasmussen, E., Hughes, F., & Finlayson, M. (2013). Nurse turnover in New Zealand: Costs and relationships with staffing practises and patient outcomes. Journal of Nursing Management, 21(3), 419-428. doi: 10.1111/j.1365-2834.2012.01371.x

Leung, W., Ashton, T., Kolt, G. S., Schofield, G. M., Garrett, N., Kerse, N., & Patel, A. (2012). Cost-effectiveness of pedometer-based versus time-based Green Prescriptions: The Healthy Steps Study. Australian Journal of Primary Health, 18(3), 204-211. doi: 10.1071/PY11028

Brown, P., McNeill, R., Leung, W., Radwan, E., & Willingale, J. (2011). Current and future economic burden of osteoporosis in New Zealand. Applied Health Economics & Health Policy, 9(2), 111-123.

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Journal - Research Other

Sarfati, D., McLeod, M., Stanley, J., Signal, V., Stairmand, J., Krebs, J., Dowell, A., Leung, W., Davies, C., & Grainger, R. (2018). BetaMe: Impact of a comprehensive digital health programme on HbA1c and weight at 12 months for people with diabetes and pre-diabetes: Study protocol for a randomised controlled trial. Trials, 19, 161. doi: 10.1186/s13063-018-2528-4

Wilson, N., Selak, V., Blakely, T., Knight, J., Nghiem, N., Leung, W., … Jackson, R. (2016). Decision-making in an era of cancer prevention via aspirin: New Zealand needs updated guidelines and risk calculators. New Zealand Medical Journal, 129(1431), 85-92. Retrieved from https://www.nzma.org.nz/journal

Patel, R., Sulzberger, L., Li, G., Mair, J., Morley, H., Ng-Wai Shing, M., O'Leary, C., Prakash, A., Robilliard, N., Rutherford, M., Sharpe, C., Shie, C., Sritharan, L., Turnbull, J., Whyte, I., Yu, H., Cleghorn, C., Leung, W., & Wilson, N. (2015). Smartphone apps for weight loss and smoking cessation: Quality ranking of 120 apps. New Zealand Medical Journal, 128(1421). Retrieved from https://www.nzma.org.nz/journal

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