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Nhung Nghiem, Department of Public Health

Nhung Nghiem image 2021

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 researcher on the Burden of Disease Epidemiology, Equity and Cost-Effectiveness Programme (BODE³).

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, and health inequities. Nhung also has experience in analysing health and social administrative data at an individual-level, i.e. Health Tracker and Integrated Data Infrastructure (IDI). She has been awarded a Marsden Fast-Start grant in the 2019 round.

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Publications

Grout, L., Mizdrak, A., Nghiem, N., Jones, A. C., Blakely, T., Ni Mhurchu, C., & Cleghorn, C. (2022). Potential effect of real-world junk food and sugar-sweetened beverage taxes on population health, health system costs and greenhouse gas emissions in New Zealand: A modelling study. BMJ Nutrition, Prevention & Health, 5(1), 19-35. doi: 10.1136/bmjnph-2021-000376

Doan, T., Nghiem, N., & Doan, N. (2022). Free versus regulated migration: Comparing the wages of the New Zealand-born, other migrants and the Australia-born workers in Australia. International Migration. Advance online publication. doi: 10.1111/imig.13011

Cleghorn, C., Mulder, I., Macmillan, A., Mizdrak, A., Drew, J., Nghiem, N., Blakely, T., & Ni Mhurchu, C. (2022). Can a greenhouse gas emissions tax on food also be healthy and equitable? A systemised review and modelling study from Aotearoa New Zealand. International Journal of Environmental Research & Public Health, 19, 4421. doi: 10.3390/ijerph19084421

Jones, A. C., Grout, L., Wilson, N., Nghiem, N., & Cleghorn, C. (2022). The cost-effectiveness of a mass media campaign to promote smartphone apps for weight loss: Updated modeling study. JMIR Formative Research, 6(4), e29291. doi: 10.2196/29291

Nguyen, Q. H., Nguyen, B. P., Nguyen, M. T., Chua, M. C. H., Do, T. T. T., & Nghiem, N. (2022). Bone age assessment and sex determination using transfer learning. Expert Systems with Applications, 200, 116926. doi: 10.1016/j.eswa.2022.116926

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

Chapter in Book - Research

Camacho, X., Nedkoff, L., Wright, F. L., Nghiem, N., Buajitti, E., Goldacre, R., … Wilson, N., Blakely, T., & Clarke, P. (2022). Relative contribution of trends in myocardial infarction event rates and case fatality to declines in mortality: An international comparative study of 1·95 million events in 80·4 million people in four countries. Lancet Public Health, 7(3), 229-239. doi: 10.1016/s2468-2667(22)00006-8

Journal - Research Article

Cleghorn, C., Mulder, I., Macmillan, A., Mizdrak, A., Drew, J., Nghiem, N., Blakely, T., & Ni Mhurchu, C. (2022). Can a greenhouse gas emissions tax on food also be healthy and equitable? A systemised review and modelling study from Aotearoa New Zealand. International Journal of Environmental Research & Public Health, 19, 4421. doi: 10.3390/ijerph19084421

Journal - Research Article

Doan, T., Nghiem, N., & Doan, N. (2022). Free versus regulated migration: Comparing the wages of the New Zealand-born, other migrants and the Australia-born workers in Australia. International Migration. Advance online publication. doi: 10.1111/imig.13011

Journal - Research Article

Grout, L., Mizdrak, A., Nghiem, N., Jones, A. C., Blakely, T., Ni Mhurchu, C., & Cleghorn, C. (2022). Potential effect of real-world junk food and sugar-sweetened beverage taxes on population health, health system costs and greenhouse gas emissions in New Zealand: A modelling study. BMJ Nutrition, Prevention & Health, 5(1), 19-35. doi: 10.1136/bmjnph-2021-000376

Journal - Research Article

Jones, A. C., Grout, L., Wilson, N., Nghiem, N., & Cleghorn, C. (2022). The cost-effectiveness of a mass media campaign to promote smartphone apps for weight loss: Updated modeling study. JMIR Formative Research, 6(4), e29291. doi: 10.2196/29291

Journal - Research Article

Nguyen, Q. H., Nguyen, B. P., Nguyen, M. T., Chua, M. C. H., Do, T. T. T., & Nghiem, N. (2022). Bone age assessment and sex determination using transfer learning. Expert Systems with Applications, 200, 116926. doi: 10.1016/j.eswa.2022.116926

Journal - Research Article

Wilson, N., Hoek, J., Nghiem, N., Summers, J., Grout, L., & Edwards, R. (2022). Modelling the impacts of tobacco denicotinisation on achieving the Smokefree 2025 goal in Aotearoa New Zealand. New Zealand Medical Journal, 135(1548), 65-76. Retrieved from https://www.nzma.org.nz/journal

Journal - Research Article

Hoenink, J. C., Waterlander, W. E., Mackenbach, J. D., Ni Mhurchu, C., Wilson, N., Beulens, J. W. J., & Nghiem, N. (2021). Impact of taxes on purchases of close substitute foods: Analysis of cross-price elasticities using data from a randomized experiment. Nutrition Journal, 20, 75. doi: 10.1186/s12937-021-00736-y

Journal - Research Article

Jacobi, L., Nghiem, N., Ramírez-Hassan, A., & Blakely, T. (2021). Food price elasticities for policy interventions: Estimates from a virtual supermarket experiment in a multistage demand analysis with (expert) prior information. Economic Record. Advance online publication. doi: 10.1111/1475-4932.12640

Journal - Research Article

Nghiem, N., & Wilson, N. (2021). Potential impact of COVID-19 related unemployment on increased cardiovascular disease in a high-income country: Modeling health loss, cost and equity. PLoS ONE, 16(5), e0246053. doi: 10.1371/journal.pone.0246053

Journal - Research Article

Blakely, T., Cleghorn, C., Mizdrak, A., Waterlander, W., Nghiem, N., Swinburn, B., Wilson, N., & Ni Mhurchu, C. (2020). The effect of food taxes and subsidies on population health and health costs: A modelling study. Lancet Public Health, 5(7), e404-e413. doi: 10.1016/s2468-2667(20)30116-x

Journal - Research Article

Blakely, T., Nghiem, N., Genc, M., Mizdrak, A., Cobiac, L., Ni Mhurchu, C., … Cleghorn, C. (2020). Modelling the health impact of food taxes and subsidies with price elasticities: The case for additional scaling of food consumption using the total food expenditure elasticity. PLoS ONE, 15(3), e0230506. doi: 10.1371/journal.pone.0230506

Journal - Research Article

Cleghorn, C. L., Wilson, N., Nair, N., Kvizhinadze, G., Nghiem, N., McLeod, M., & Blakely, T. (2019). Health benefits and costs of weight-loss dietary counselling by nurses in primary care: A cost-effectiveness analysis. Public Health Nutrition, 23(1), 83-93. doi: 10.1017/s1368980019002945

Journal - Research Article

Cleghorn, C., Wilson, N., Nair, N., Kvizhinadze, G., Nghiem, N., McLeod, M., & Blakely, T. (2019). Health benefits and cost-effectiveness from promoting smartphone apps for weight loss: Multistate life table modeling. JMIR mHealth & uHealth, 7(1), e11118. doi: 10.2196/11118

Journal - Research Article

Nghiem, N., Knight, J., Mizdrak, A., Blakely, T., & Wilson, N. (2019). Preventive pharmacotherapy for cardiovascular disease: A modelling study considering health gain, costs, and cost-effectiveness when stratifying by absolute risk. Scientific Reports, 9, 19562. doi: 10.1038/s41598-019-55372-8

Journal - Research Article

Nghiem, N., Leung, W., Cleghorn, C., Blakely, T., & Wilson, N. (2019). Mass media promotion of a smartphone smoking cessation app: Modelled health and cost-saving impacts. BMC Public Health, 19(1), 283. doi: 10.1186/s12889-019-6605-8

Journal - Research Article

Nguyen, B. P., Pham, H. N., Tran, H., Nghiem, N., Nguyen, Q. H., Do, T. T. T., … Simpson, C. R. (2019). Predicting the onset of type 2 diabetes using wide and deep learning with electronic health records. Computer Methods & Programs in Biomedicine, 182, 105055. doi: 10.1016/j.cmpb.2019.105055

Journal - Research Article

Waterlander, W. E., Jiang, Y., Nghiem, N., Eyles, H., Wilson, N., Cleghorn, C., Genç, M., … Blakely, T. (2019). The effect of food price changes on consumer purchases: A randomised experiment. Lancet Public Health, 4(8), e394-e405. doi: 10.1016/S2468-2667(19)30105-7

Journal - Research Article

Wilson, N., Cleghorn, C. L., Cobiac, L. J., Mizdrak, A., & Nghiem, N. (2019). Achieving healthy and sustainable diets: A review of the results of recent mathematical optimization studies. Advances in Nutrition, 10(Suppl. 4), S389-S403. doi: 10.1093/advances/nmz037

Journal - Research Article

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

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

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

Journal - Research Article

Wilson, N., Grout, L., Summers, J., Jones, A. C., Mizdrak, A., Nghiem, N., Cleghorn, C., & Blakely, T. (2021). Should prioritising health interventions be informed by modelling studies? The case of cancer control in Aotearoa New Zealand [Viewpoint]. New Zealand Medical Journal, 134(1531), 101-113. Retrieved from https://www.nzma.org.nz/journal

Journal - Research Other

Nghiem, N., Mizdrak, A., & Wilson, N. (2020). Increased unemployment from the COVID-19 pandemic, what might be the adverse impacts on cardiovascular disease in Aotearoa/New Zealand and how might this be prevented? New Zealand Medical Journal, 133(1526), 89-98. Retrieved from https://www.nzma.org.nz/journal

Journal - Research Other

Wilson, N., Jones, A. C., Nghiem, N., & Blakely, T. (2018). Preventing cardiovascular disease in New Zealand: Making better use of statins but also tobacco control, changing the food supply and other strategies. New Zealand Medical Journal, 131(1484), 61-67. Retrieved from https://www.nzma.org.nz/journal

Journal - Research Other

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

Journal - Research Other

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