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Contact Details

Phone
64 3 479 4019
Email
brandon.degraaf@otago.ac.nz
Position
Research Fellow / Data Manager / Programmer
Department
Department of Preventive and Social Medicine
Qualifications
BSc
Research summary
Data science and geospatial modelling

Research

I have a keen interest in all things data related, including data capture, processing, process optimisation and automation, database management systems and data warehouses, and machine learning.

I also perform geographical operations on data, such as geocoding, geospatial modelling, and mapping. Typical daily tasks include ad-hoc descriptive statistics, preparing data for further analysis, linking datasets, preparing and running online surveys, automating repetitive processes, and generally finding better ways to solve data problems and keep projects running smoothly.

Publications

Miller, R., Davie, G., Crengle, S., Whitehead, J., De Graaf, B., & Nixon, G. (2024). Avoiding double counting: the effect of bundling hospital events in administrative datasets for the interpretation of rural-urban differences in Aotearoa New Zealand. Journal of Clinical Epidemiology. Advance online publication. doi: 10.1016/j.jclinepi.2024.111400 Journal - Research Article

Nixon, G., Davie, G., Whitehead, J., Miller, R., de Graaf, B., Liepins, T., Lawrenson, R., & Crengle, S. (2024). Rural-urban variation in the utilisation of publicly funded healthcare services: An age-stratified population-level observational study. New Zealand Medical Journal/Te ara tika o te hauora hapori, 137(1590), 33-47. Retrieved from https://www.nzmj.org.nz/ Journal - Research Article

Liepins, T., Davie, G., Miller, R., Whitehead, J., De Graaf, B., Clay, L., Crengle, S., & Nixon, G. (2024). Rural-urban variation in COVID-19 vaccination uptake in Aotearoa New Zealand: Examining the national roll-out. Epidemiology & Infection, 152, e7. doi: 10.1017/s0950268823001978 Journal - Research Article

Miller, R., Davie, G., De Graaf, B., Crengle, S., & Nixon, G. (2023). Avoiding double counting: The effect of bundling hospital events in administrative datasets for the interpretation of rural-urban differences in Aotearoa New Zealand. Proceedings of the New Zealand Biostatistics Conference. Retrieved from https://events.otago.ac.nz/2023-biostatistics-conference Conference Contribution - Published proceedings: Abstract

Nixon, G., Davie, G., Whitehead, J., Miller, R., de Graaf, B., Lawrenson, R., Smith, M., … Crengle, S. (2023). Comparison of urban and rural mortality rates across the lifespan in Aotearoa/New Zealand: A population-level study. Journal of Epidemiology & Community Health. Advance online publication. doi: 10.1136/jech-2023-220337 Journal - Research Article

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