Brandon de Graaf
| 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
Crengle, S., Davie, G., Whitehead, J., de Graaf, B., Lawrenson, R., & Nixon, G. (2022). Mortality outcomes and inequities experienced by rural Māori in Aotearoa New Zealand. Lancet Regional Health: Western Pacific, 28, 100570. doi: 10.1016/j.lanwpc.2022.100570
Whitehead, J., Davie, G., de Graaf, B., Crengle, S., Fearnley, D., Smith, M., Lawrenson, R., & Nixon, G. (2022). Defining rural in Aotearoa New Zealand: A novel geographic classification for health purposes. New Zealand Medical Journal, 135(1559), 24-40. Retrieved from https://journal.nzma.org.nz
McBride, D., Samaranayaka, A., Richardson, A., Gardner, D., Shepherd, D., Wyeth, E., de Graaf, B., & Derrett, S. (2022). Factors associated with self-reported health among New Zealand military veterans: A cross-sectional study. BMJ Open, 12, e056916. doi: 10.1136/bmjopen-2021-056916
Davie, G., Lilley, R., de Graaf, B., Dicker, B., Branas, C., Ameratunga, S., … Kool, B. (2022). Access to advanced-level hospital care: Differences in prehospital times calculated using incident locations compared with patients' usual residence [Brief report]. Injury Prevention, 28, 192-196. doi: 10.1136/injuryprev-2021-044351
Nixon, G., Whitehead, J., Davie, G., Fearnley, D., Crengle, S., de Graaf, B., Smith, M., … Lawrenson, R. (2021). Developing the geographic classification for health, a rural-urban classification for New Zealand health research and policy: A research protocol. Australian Journal of Rural Health. Advance online publication. doi: 10.1111/ajr.12778
Crengle, S., Davie, G., Whitehead, J., de Graaf, B., Lawrenson, R., & Nixon, G. (2022). Mortality outcomes and inequities experienced by rural Māori in Aotearoa New Zealand. Lancet Regional Health: Western Pacific, 28, 100570. doi: 10.1016/j.lanwpc.2022.100570
Journal - Research Article
McBride, D., Samaranayaka, A., Richardson, A., Gardner, D., Shepherd, D., Wyeth, E., de Graaf, B., & Derrett, S. (2022). Factors associated with self-reported health among New Zealand military veterans: A cross-sectional study. BMJ Open, 12, e056916. doi: 10.1136/bmjopen-2021-056916
Journal - Research Article
Whitehead, J., Davie, G., de Graaf, B., Crengle, S., Fearnley, D., Smith, M., Lawrenson, R., & Nixon, G. (2022). Defining rural in Aotearoa New Zealand: A novel geographic classification for health purposes. New Zealand Medical Journal, 135(1559), 24-40. Retrieved from https://journal.nzma.org.nz
Journal - Research Article
Davie, G., Lilley, R., de Graaf, B., Ameratunga, S., Dicker, B., Civil, I., … Kool, B. (2021). Access to specialist hospital care and injury survivability: identifying opportunities through an observational study of prehospital trauma fatalities. Injury, 51, 2863-2870. doi: 10.1016/j.injury.2021.03.033
Journal - Research Article
de Graaf, B., Lilley, R., Davie, G., & Kool, B. (2021). Optimising base locations for New Zealand's Helicopter Emergency Medical Services. Spatial & Spatio-temporal Epidemiology, 38, 100435. doi: 10.1016/j.sste.2021.100435
Journal - Research Article
Kool, B., Lilley, R., Davie, G., de Graaf, B., Reid, P., Branas, C., … Ameratunga, S. N. (2021). Potential survivability of prehospital injury deaths in New Zealand: A cross-sectional study. Injury Prevention, 27, 245-250. doi: 10.1136/injuryprev-2019-043408
Journal - Research Article
Lilley, R., Kool, B., Davie, G., de Graaf, B., & Dicker, B. (2021). Opportunities to prevent fatalities due to injury: A cross-sectional comparison of prehospital and in-hospital fatal injury deaths in New Zealand. Australian & New Zealand Journal of Public Health, 45(3), 235-241. doi: 10.1111/1753-6405.13068
Journal - Research Article
Lilley, R., McNoe, B., Davie, G., de Graaf, B., & Driscoll, T. (2021). Work-related fatalities involving children in New Zealand, 1999-2014. Children, 8, 4. doi: 10.3390/children8010004
Journal - Research Article
Richardson, A., Gurung, G., Samaranayaka, A., Gardner, D., de Graaf, B., Wyeth, E. H., Derrett, S., … McBride, D. (2020). Risk and protective factors for post-traumatic stress among New Zealand military personnel: A cross sectional study. PLoS ONE, 15(4), e0231460. doi: 10.1371/journal.pone.0231460
Journal - Research Article
Lilley, R., de Graaf, B., Kool, B., Davie, G., Reid, P. J., Dicker, B., … Branas, C. (2019). Geographical and population disparities in timely access to prehospital and advanced level emergency care in New Zealand: A cross-sectional study. BMJ Open, 9(7), e026026. doi: 10.1136/bmjopen-2018-026026
Journal - Research Article
Windner, Z., Crengle, S., de Graaf, B., Samaranayaka, A., & Derrett, S. (2018). New Zealanders' experiences and pathways to a diagnosis of bowel cancer: A cross-sectional descriptive study of a younger cohort. New Zealand Medical Journal, 131(1483), 30-39. Retrieved from https://www.nzma.org.nz/journal
Journal - Research Article
Cryer, C., Miller, T. R., Lyons, R. A., Macpherson, A. K., Pérez, K., Petridou, E. T., … Davie, G. S., … de Graaf, B., & Steiner, C. A. (2017). Towards valid 'serious non-fatal injury' indicators for international comparisons based on probability of admission estimates. Injury Prevention, 23(1), 47-57. doi: 10.1136/injuryprev-2016-042020
Journal - Research Article
Whigham, P. A., de Graaf, B., Srivastava, R., & Glue, P. (2016). Managing distance and covariate information with point-based clustering. BMC Medical Research Methodology, 16(1), 115. doi: 10.1186/s12874-016-0218-z
Journal - Research Article
Nixon, G., Samaranayaka, A., de Graaf, B., McKechnie, R., Rodwell, P., & Blattner, K. (2015). The impact of a rural scanner in overcoming urban versus rural disparities in the utilisation of computed tomography. Australian Journal of Rural Health, 23, 150-154. doi: 10.1111/ajr.12125
Journal - Research Article
Nixon, G., Samaranayaka, A., de Graaf, B., McKechnie, R., Blattner, K., & Dovey, S. (2014). Geographic disparities in the utilisation of computed tomography scanning services in southern New Zealand. Health Policy, 118(2), 222-228. doi: 10.1016/j.healthpol.2014.05.002
Journal - Research Article
Kypri, K., McCambridge, J., Cunningham, J. A., Vater, T., Bowe, S., De Graaf, B., … Dean, J. (2010). Web-based alcohol screening and brief intervention for Māaori and non-Māori: The New Zealand e-SBINZ trials. BMC Public Health, 10, 781. doi: 10.1186/1471-2458-10-781
Journal - Research Article
Davie, G., Lilley, R., de Graaf, B., Dicker, B., Branas, C., Ameratunga, S., … Kool, B. (2022). Access to advanced-level hospital care: Differences in prehospital times calculated using incident locations compared with patients' usual residence [Brief report]. Injury Prevention, 28, 192-196. doi: 10.1136/injuryprev-2021-044351
Journal - Research Other
Kool, B., Lilley, R., Davie, G., Reid, P., Civil, I., Branas, C., de Graaf, B., … Ameratunga, S. N. (2021). Evaluating the impact of prehospital care on mortality following major trauma in New Zealand: A retrospective cohort study. Injury Prevention, 27, 582-586. doi: 10.1136/injuryprev-2020-044057
Journal - Research Other
Nixon, G., Whitehead, J., Davie, G., Fearnley, D., Crengle, S., de Graaf, B., Smith, M., … Lawrenson, R. (2021). Developing the geographic classification for health, a rural-urban classification for New Zealand health research and policy: A research protocol. Australian Journal of Rural Health. Advance online publication. doi: 10.1111/ajr.12778
Journal - Research Other
Cryer, C., Davie, G. S., Gulliver, P. J., Th Petridou, E., Dessypris, N., Lauritsen, J., … de Graaf, B. (2018). Empirical validation of the New Zealand serious non-fatal injury outcome indicator for 'all injury' [Brief report]. Injury Prevention, 24(4), 300-304. doi: 10.1136/injuryprev-2017-042463
Journal - Research Other
Lilley, R., Kool, B., Davie, G., de Graaf, B., Ameratunga, S. N., Reid, P., … Branas, C. C. (2018). Preventable injury deaths: Identifying opportunities to improve timeliness and reach of emergency healthcare services in New Zealand. Injury Prevention, 24(5), 384-389. doi: 10.1136/injuryprev-2016-042304
Journal - Research Other
