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Nhung Nghiem, Department of Public Health

photo of Nhung-Nghiem public health dept

BA(Econ), Master(Econ), PhD(Econ)

Senior Research Fellow; BODE³

Contact Details  

Tel: +64 4 918 6183
Fax: +64 4 389 5319
Email: nhung.nghiem@otago.ac.nz

Research Interests and Activities  

Nhung is an economist and a modeller with the Burden of Disease Epidemiology, Equity and Cost-Effectiveness Programme (BODE³) research group.

Nhung has research interests in quantitative methods for health care, such as simulation, optimisation and machine learning. Her research covers cardiovascular and non-communicable diseases modelling, cost-effectiveness analyses of preventive interventions, health inequalities, and food demand analysis. Nhung also has experience in analysing health and social administrative data at an individual-level, ie, Health Tracker and Integrated Data Infrastructure (IDI).

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Publications

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

Cleghorn, C. L., Blakely, T., Kvizhinadze, G., van der Deen, F. S., Nghiem, N., Cobiac, L. J., & Wilson, N. (2018). Impact of increasing tobacco taxes on working-age adults: Short-term health gain, health equity and cost savings. Tobacco Control, 27(e2), e167-e170. doi: 10.1136/tobaccocontrol-2017-053914

Waterlander, W., Blakely, T., Nghiem, N., Cleghorn, C., Wilson, N., Genc, M., … Ni Mhurchu, C. (2017). Determining price elasticity values for studying food taxes and subsidies by combining experimental methods, econometric models, and stimulation modelling: The Price exam study. Proceedings of the International Society of Behavioral Nutrition and Physical Activity Annual Meeting. (pp. 74). ISBNPA. Retrieved from https://www.isbnpa.org

Wilson, N., Blakely, T., Nghiem, N., Cleghorn, C., Kvizhinadze, G., Atkinson, J., Nair, N., Mizdrak, A., & van der Deen, F. S. (2017). Guide for ensuring high quality of modelling outputs in the BODE3 programme. Wellington, New Zealand: Department of Public Health, University of Otago. 22p. Retrieved from http://www.otago.ac.nz/wellington/departments/publichealth

van der Deen, F. S., Wilson, N., Cleghorn, C. L., Kvizhinadze, G., Cobiac, L. J., Nghiem, N., & Blakely, T. (2018). Impact of five tobacco endgame strategies on future smoking prevalence, population health and health system costs: Two modelling studies to inform the tobacco endgame. Tobacco Control, 27(3), 278-286. doi: 10.1136/tobaccocontrol-2016-053585

Working Paper; Discussion Paper; Technical Report

Wilson, N., Blakely, T., Nghiem, N., Cleghorn, C., Kvizhinadze, G., Atkinson, J., Nair, N., Mizdrak, A., & van der Deen, F. S. (2017). Guide for ensuring high quality of modelling outputs in the BODE3 programme. Wellington, New Zealand: Department of Public Health, University of Otago. 22p. Retrieved from http://www.otago.ac.nz/wellington/departments/publichealth

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Chapter in Book - Research

Nhung, N. T. H. (2015). Optimal forest management for carbon sequestration: A case study of Eucalyptus urophylla and Acacia mangium in Yen Bai Province, Vietnam. In D. James & H. A. Francisco (Eds.), Cost-benefit studies of natural resource management in Southeast Asia. (pp. 113-135). Springer. doi: 10.1007/978-981-287-393-4

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Journal - Research Article

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

Cleghorn, C. L., Blakely, T., Kvizhinadze, G., van der Deen, F. S., Nghiem, N., Cobiac, L. J., & Wilson, N. (2018). Impact of increasing tobacco taxes on working-age adults: Short-term health gain, health equity and cost savings. Tobacco Control, 27(e2), e167-e170. doi: 10.1136/tobaccocontrol-2017-053914

van der Deen, F. S., Wilson, N., Cleghorn, C. L., Kvizhinadze, G., Cobiac, L. J., Nghiem, N., & Blakely, T. (2018). Impact of five tobacco endgame strategies on future smoking prevalence, population health and health system costs: Two modelling studies to inform the tobacco endgame. Tobacco Control, 27(3), 278-286. doi: 10.1136/tobaccocontrol-2016-053585

Pearson, A. L., Cleghorn, C. L., van der Deen, F. S., Cobiac, L. J., Kvizhinadze, G., Nghiem, N., Blakely, T., & Wilson, N. (2017). Tobacco retail outlet restrictions: Health and cost impacts from multistate life-table modelling in a national population. Tobacco Control, 26(5), 579-585. doi: 10.1136/tobaccocontrol-2015-052846

Nghiem, N., Blakely, T., Cobiac, L. J., Cleghorn, C. L., & Wilson, N. (2016). The health gains and cost savings of dietary salt reduction interventions, with equity and age distributional aspects. BMC Public Health, 16(1), 423. doi: 10.1186/s12889-016-3102-1

Wilson, N., Nghiem, N., Ryan, S., Cleghorn, C., Nair, N., & Blakely, T. (2016). Desiging low-cost "heart healthy bread": Optimization using linear programming and 15-country comparison. BMC Nutrition, 2, 23. doi: 10.1186/s40795-016-0062-x

Nguyen, T. T., & Nghiem, N. (2016). Optimal forest rotation for carbon sequestration and biodiversity conservation by farm income levels. Forest Policy & Economics, 73, 185-194. doi: 10.1016/j.forpol.2016.09.014

Nghiem, N., & Tran, H. (2016). The biodiversity benefits and opportunity costs of plantation forest management: A modelling case study of Pinus radiata in New Zealand. Forests, 7(12), 297. doi: 10.3390/f7120297

Wilson, N., Nghiem, N., Eyles, H., Ni Mhurchu, C., Shields, E., Cobiac, L. J., Cleghorn, C. L., & Blakely, T. (2016). Modeling health gains and cost savings for ten dietary salt reduction targets. Nutrition Journal, 15, 44. doi: 10.1186/s12937-016-0161-1

Cobiac, L. J., Ikeda, T., Nghiem, N., Blakely, T., & Wilson, N. (2015). Modelling the implications of regular increases in tobacco taxation in the tobacco endgame. Tobacco Control, 24, e154-e160. doi: 10.1136/tobaccocontrol-2014-051543

Blakely, T., Atkinson, J., Kvizhinadze, G., Nghiem, N., McLeod, H., Davies, A., & Wilson, N. (2015). Updated New Zealand health system cost estimates from health events by sex, age and proximity to death: Further improvements in the age of 'big data'. New Zealand Medical Journal, 128(1422). Retrieved from https://www.nzma.org.nz/journal

Blakely, T., Cobiac, L. J., Cleghorn, C. L., Pearson, A. L., van der Deen, F. S., Kvizhinadze, G., Nghiem, N., McLeod, M., & Wilson, N. (2015). Health, health inequality, and cost impacts of annual increases in tobacco tax: Multistate life table modeling in New Zealand. PLoS Medicine, 12(7), e1001856. doi: 10.1371/journal.pmed.1001856

Nghiem, N. (2015). Optimal forest management for timber value and carbon sequestration benefits in tropical planted forests: A case study of household foresters in Vietnam. Environment & Development Economics, 20(6), 746-766. doi: 10.1017/S1355770X14000680

Wilson, N., Blaschke, P., Thomson, G., Nghiem, N., & Horrocks, J. (2015). Public health aspects of feral deer, goats and pigs in New Zealand: A review to inform eradication decisions. New Zealand Geographer, 71(3), 177-188. doi: 10.1111/nzg.12086

Nghiem, N., Blakely, T., Cobiac, L. J., Pearson, A. L., & Wilson, N. (2015). Health and economic impacts of eight different dietary salt reduction interventions. PLoS ONE, 10(4), e0123915. doi: 10.1371/journal.pone.0123915

Blakely, T., Atkinson, J., Kvizhinadze, G., Nghiem, N., McLeod, H., & Wilson, N. (2014). Health system costs by sex, age and proximity to death, and implications for estimation of future expenditure. New Zealand Medical Journal, 127(1393). Retrieved from http://www.nzma.org.nz/journal

Nghiem, N. (2014). Optimal rotation age for carbon sequestration and biodiversity conservation in Vietnam. Forest Policy & Economics, 38, 56-64. doi: 10.1016/j.forpol.2013.04.001

Wilson, N., Nghiem, N., Ni Mhurchu, C., Eyles, H., Baker, M. G., & Blakely, T. (2013). Foods and dietary patterns that are healthy, low-cost, and environmentally sustainable: A case study of optimization modeling for New Zealand. PLoS ONE, 8(3), e59648. doi: 10.1371/journal.pone.0059648

Nghiem, N. (2013). Biodiversity conservation attitudes and policy tools for promoting biodiversity in tropical planted forests. Biodiversity & Conservation, 22(2), 373-403. doi: 10.1007/s10531-012-0418-8

Wilson, N., Nghiem, N., Summers, J. A., Carter, M.-A., & Harper, G. (2013). A nutritional analysis of New Zealand military food rations at Gallipoli in 1915: Likely contribution to scurvy and other nutrient deficiency disorders. New Zealand Medical Journal, 126(1373). Retrieved from http://www.nzma.org.nz/journal

Nghiem, N., Wilson, N., Genç, M., & Blakely, T. (2013). Understanding price elasticities to inform public health research and intervention studies: Key issues. American Journal of Public Health, 103(11), 1954-1961. doi: 10.2105/ajph.2013.301337

Wilson, N., Nghiem, N., & Foster, R. H. (2013). The feasibility of achieving low-sodium intake in diets that are also nutritious, low-cost, and have familiar meal components. PLoS ONE, 8(3), e58539. doi: 10.1371/journal.pone.0058539

Nghiem, N., Carter, M.-A., & Wilson, N. (2012). Emergency food storage for organisations and citizens in New Zealand: Results of optimisation modelling. New Zealand Medical Journal, 125(1367). Retrieved from http://www.nzma.org.nz/journal

Eyles, H., Ni Mhurchu, C., Nghiem, N., & Blakely, T. (2012). Food pricing strategies, population diets, and non-communicable disease: A systematic review of simulation studies. PLoS Medicine, 9(12), e1001353. doi: 10.1371/journal.pmed.1001353

Wilson, N., Nghiem, N., Higgins, A., Kvizhinadze, G., Baker, M. G., & Blakely, T. (2012). A national estimate of the hospitalisation costs for the influenza (H1N1) pandemic in 2009. New Zealand Medical Journal, 125(1365). Retrieved from http://www.nzma.org.nz/journal

Wilson, N., Nghiem, N., Foster, R., Cobiac, L., & Blakely, T. (2012). Estimating the cost of new public health legislation. Bulletin of the World Health Organization, 90(7), 532-539. doi: 10.2471/BLT.11.097584

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Journal - Research Other

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

Waterlander, W. E., Blakely, T., Nghiem, N., Cleghorn, C. L., Eyles, H., Genc, M., Wilson, N., … Ni Mhurchu, C. (2016). Study protocol: Combining experimental methods, econometrics and simulation modelling to determine price elasticities for studying food taxes and subsidies (The Price ExaM Study). BMC Public Health, 16, 601. doi: 10.1186/s12889-016-3277-5

Wilson, N., Nghiem, N., Eyles, H., Ni Mhurchu, C., Cobiac, L. J., Pearson, A. L., Cleghorn, C., & Blakely, T. (2014). Possible impact of the Tick Programme in New Zealand on selected nutrient intakes: Tentative estimates and methodological complexities. New Zealand Medical Journal, 127(1399). Retrieved from http://www.nzma.org.nz/journal

Wilson, N., & Nghiem, N. (2012). Low sodium diets can be both nutritious and low cost. BMJ, 344, e3837. doi: 10.1136/bmj.e3837

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Conference Contribution - Published proceedings: Abstract

Waterlander, W., Blakely, T., Nghiem, N., Cleghorn, C., Wilson, N., Genc, M., … Ni Mhurchu, C. (2017). Determining price elasticity values for studying food taxes and subsidies by combining experimental methods, econometric models, and stimulation modelling: The Price exam study. Proceedings of the International Society of Behavioral Nutrition and Physical Activity Annual Meeting. (pp. 74). ISBNPA. Retrieved from https://www.isbnpa.org

Pearson, A., Cleghorn, C., van der Deen, F. S., Cobiac, L., Kvizhinadze, G., Nghiem, N., Blakely, T., & Wilson, N. (2017). Reduced access to tobacco retailers: Modelling health, equity and cost impacts at a national. Proceedings of the 23rd Society for Research on Nicotine & Tobacco (SRNT) Annual Meeting. (pp. 337). Retrieved from http://www.srnt.org/

Wilson, N., Nghiem, N., Leung, W., Cleghorn, C., Nair, N., van der Deen, F. S., & Blakely, T. (2017). Mass media and quitline combined: Modelling the health gain (QALYS), equity impacts and health cost savings. Proceedings of the 23rd Society for Research on Nicotine & Tobacco (SRNT) Annual Meeting. (pp. 305-306). Retrieved from http://www.srnt.org/

Nghiem, N. (2015). Modelling biodiversity benefits and opportunity costs of timber harvesting: A case study of Pinus radiata. In T. Weber, M. J. McPhee & R. S. Anderssen (Eds.), Proceedings of the 21st International Congress on Modelling and Simulation (MODSIM): Partnering with Industry and the Community for Innovation and Impact through Modelling. (pp. 269). Modelling and Simulation Society of Australia and New Zealand. [Abstract]

Cleghorn, C., Cobiac, L., Nghiem, N., Kvizhinadze, G., Wilson, N., Ni Mhurchu, C., & Blakely, T. (2015). Modelling the QALYS gained and health system cost impacts of food taxes and subsidies in New Zealand: Multistate life table modelling of a sugar sweetened beverage tax and removing GST on fresh fruit and vegetables. Proceedings of the 11th World Congress: "De Gustibus Disputandum Non Est!" Health Economics and Nutrition: An. Retrieved from https://ihea2015.abstractsubmit.org/presentations/search/?terms=cleghorn

Blaschke, P., Wilson, N., Thomson, G., Nghiem, N., & Horrocks, J. (2014). Public health issues around feral game animals in New Zealand: A review to inform eradication considerations. Proceedings of the New Zealand Population Health Congress: Connecting Communities, Policy and Science. (pp. 225-226). Retrieved from http://www.pophealthcongress.org.nz/nzphc14/programme/programme

Wilson, N., Nghiem, N., Blakely, T., Cobiac, L. J., & Pearson, A. L. (2014). Cost-utility analysis of existing and novel dietary salt reduction interventions. Proceedings of the New Zealand Population Health Congress: Connecting Communities, Policy and Science. (pp. 129). Retrieved from http://www.pophealthcongress.org.nz/nzphc14/programme/programme

Blakely, T., Pearson, A., Cobiac, L., Nghiem, N., & Wilson, N. (2014). A cost-utility analysis of regularly raising tobacco taxation to help achieve the New Zealand government's smokefree nation goal. Australasian Epidemiologist, 21(3), (pp. 75-76). [Abstract]

Wilson, N., Cobiac, L., Ikeda, T., Nghiem, N., & Blakely, T. (2013). The tobacco endgame in New Zealand: How might tobacco taxation contribute for Māori and all New Zealanders? Proceedings of the Oceania Tobacco Control Conference: A Smokefree Oceania: Getting There Together. Retrieved from http://www.smokefreeoceania.org.nz/

Nghiem, N., Carter, M.-A., & Wilson, N. (2012). Disaster management: Optimisation modelling to inform emergency food storage for organisations and citizens in New Zealand. Injury Prevention, 18(Suppl. 1), (pp. A153-A154). doi: 10.1136/injuryprev-2012-040590l.7

Ikeda, T., Cobiac, L., Wilson, N., Nghiem, N., & Blakely, T. (2012). Projecting smoking prevalence in New Zealand and scope for achieving the government's Smokefree Nation 2025 goal. Proceedings of the Tobacco-Free Aotearoa Conference. Retrieved from http://smokefree.org.nz/conference-presentations

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Conference Contribution - Verbal presentation and other Conference outputs

Blakely, T., McLeod, M., Nghiem, N., Kvizhinadze, G., Quirke, T., Bartholomew, N., & Tobias, M. (2013, July). Using expected years of life lived with disability (YLDs) from a burden of disease study to account for expected comorbidity by sex, age and ethnic group in economic evaluations. Verbal presentation at the 9th World Congress on Health Economics: Celebrating Health Economics, Sydney, Australia.

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