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Gordon Purdie, Department of Public Health

Gordon_Purdie

BSc

Biostatistician

Contact Details 

Tel: +64 4 918 6049
Fax: +64 4 389 5319
Email: gordon.purdie@otago.ac.nz

Research Interests and Activities 

Gordon is part of a team in the Department of Public Health which provides statistical consulting to health researchers. Within the Health Inequalities Research programme, he is involved in the Differential Colon Cancer Survival by Ethnicity in New Zealand project and also works with Te Rōpū Rangahau Hauora a Eru Pōmare on several research projects, including Unequal Treatment: The Role of Health Services.

Gordon's concerns include discrimination and inequalities, which are reflected in his health research.

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Publications

Tweed, M., Purdie, G., & Wilkinson, T. (2020). Defining and tracking medical student self-monitoring using multiple-choice question item certainty. BMC Medical Education, 20, 344. doi: 10.1186/s12909-020-02250-x

Chester, A. N., Purdie, G. L., Dennett, E. R., & Parker, A. J. (2020). A survey of neurosurgical management and prognostication of traumatic brain injury following the RESCUEicp trial. British Journal of Neurosurgery. Advance online publication. doi: 10.1080/02688697.2020.1812521

Herst, P. M., Aumata, A., Sword, V., Jones, R., Purdie, G., & Costello, S. (2020). Cranberry capsules are not superior to placebo capsules in managing acute non-haemorrhagic radiation cystitis in prostate cancer patients: A phase III double blinded randomised placebo controlled clinical trial. Radiotherapy & Oncology, 149, 117-123. doi: 10.1016/j.radonc.2020.05.006

Hales, C., Gray, L., MacDonald, C., & Purdie, G. (2019). Dissonance in naming adiposity: A quantitative survey of naming preferences from a convenience sample of health professional and lay population in Aotearoa New Zealand. New Zealand Medical Journal, 132(1496), 20-30. Retrieved from https://www.nzma.org.nz/journal

Murphy, R., Morgan, X. C., Wang, X. Y., Wickens, K., Purdie, G., Fitzharris, P., Otal, A., Lawley, B., Stanley, T., Barthow, C., Crane, J., … Tannock, G. W. (2019). Eczema-protective probiotic alters infant gut microbiome functional capacity but not composition: Sub-sample analysis from a RCT. Beneficial Microbes, 10(1), 5-17. doi: 10.3920/bm2017.0191

Authored Book - Research

Robson, B., Koopu, P., Gilmour, J., Rameka, R., Simmonds, S., Purdie, G., … Paine, S.-J. (2011). Oranga Waha: Oral health research priorities for Māori: Low income adults, kaumātua and Māori with disabilities, special needs or chronic health conditions. Wellington, New Zealand: Te Rōpū Rangahau Hauora a Eru Pōmare, University of Otago.

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Chapter in Book - Research

Robson, B., & Purdie, G. (2007). Mortality. In B. Robson & R. Harris (Eds.), Hauora: Māori standards of health IV: A study of the years 2000-2005. (pp. 33-61). Wellington, New Zealand: Te Rōpū Rangahau Hauora a Eru Pōmare, University of Otago.

Cormack, D., Purdie, G., & Robson, B. (2007). Cancer. In B. Robson & R. Harris (Eds.), Hauora: Māori standards of health IV: A study of the years 2000-2005. (pp. 103-119). Wellington, New Zealand: Te Rōpū Rangahau Hauora a Eru Pōmare, University of Otago.

Robson, B., Robson, C., Harris, R., & Purdie, G. (2007). Hospitalisations. In B. Robson & R. Harris (Eds.), Hauora: Māori standards of health IV: A study of the years 2000-2005. (pp. 63-101). Wellington, New Zealand: Te Rōpū Rangahau Hauora a Eru Pōmare, University of Otago.

Harris, R., Purdie, G., Robson, B., Wright, C., Zhang, J., & Baker, M. (2007). Appendix 3: Estimating Māori hospitalisations and cancer registrations. In B. Robson & R. Harris (Eds.), Hauora: Māori standards of health IV: A study of the years 2000-2005. (pp. 249-259). Wellington, New Zealand: Te Rōpū Rangahau Hauora a Eru Pōmare, University of Otago.

Robson, B., & Purdie, G. (2007). Appendix 1: Methods. In B. Robson & R. Harris (Eds.), Hauora: Māori standards of health IV: A study of the years 2000-2005. (pp. 229-239). Wellington, New Zealand: Te Rōpū Rangahau Hauora a Eru Pōmare, University of Otago.

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Journal - Research Article

Tweed, M., Purdie, G., & Wilkinson, T. (2020). Defining and tracking medical student self-monitoring using multiple-choice question item certainty. BMC Medical Education, 20, 344. doi: 10.1186/s12909-020-02250-x

Herst, P. M., Aumata, A., Sword, V., Jones, R., Purdie, G., & Costello, S. (2020). Cranberry capsules are not superior to placebo capsules in managing acute non-haemorrhagic radiation cystitis in prostate cancer patients: A phase III double blinded randomised placebo controlled clinical trial. Radiotherapy & Oncology, 149, 117-123. doi: 10.1016/j.radonc.2020.05.006

Chester, A. N., Purdie, G. L., Dennett, E. R., & Parker, A. J. (2020). A survey of neurosurgical management and prognostication of traumatic brain injury following the RESCUEicp trial. British Journal of Neurosurgery. Advance online publication. doi: 10.1080/02688697.2020.1812521

Hales, C., Gray, L., MacDonald, C., & Purdie, G. (2019). Dissonance in naming adiposity: A quantitative survey of naming preferences from a convenience sample of health professional and lay population in Aotearoa New Zealand. New Zealand Medical Journal, 132(1496), 20-30. Retrieved from https://www.nzma.org.nz/journal

Murphy, R., Morgan, X. C., Wang, X. Y., Wickens, K., Purdie, G., Fitzharris, P., Otal, A., Lawley, B., Stanley, T., Barthow, C., Crane, J., … Tannock, G. W. (2019). Eczema-protective probiotic alters infant gut microbiome functional capacity but not composition: Sub-sample analysis from a RCT. Beneficial Microbes, 10(1), 5-17. doi: 10.3920/bm2017.0191

Tweed, M., Purdie, G., & Lacey, C. (2019). Considering evidence for ethnicity bias using assessment case scenarios and medical student correctness and certainty. New Zealand Medical Journal, 132(1491), 71-77. Retrieved from https://www.nzma.org.nz/journal

Wickens, K., Barthow, C., Mitchell, E. A., Kang, J., Van Zyl, N., Purdie, G., Stanley, T., … Crane, J. (2018). Effects of Lactobacillus rhamnosus HN001 in early life on the cumulative prevalence of allergic disease to 11 years. Pediatric Allergy & Immunology, 29, 808-814. doi: 10.1111/pai.12982

Rajput, N., McKinlay, C., Purdie, G., Filipovska, J., Battin, M., Patel, H., & Tuohy, P. (2018). Community-based screening to detect school readiness problems in very preterm children. Journal of Paediatrics & Child Health, 54(3), 238-246. doi: 10.1111/jpc.13707

Slykerman, R. F., Kang, J., Van Zyl, N., Barthow, C., Wickens, K., Stanley, T., … Purdie, G., … Crane, J., & Mitchell, E. A. (2018). Effect of early probiotic supplementation on childhood cognition, behaviour and mood a randomised, placebo-controlled trial. Acta Paediatrica, 107, 2172-2178. doi: 10.1111/apa.14590

Wickens, K., Barthow, C., Mitchell, E. A., Stanley, T. V., Purdie, G., Rowden, J., Kang, J., Hood, F., … Franklin, I., Barnes, P., … Abels, P., … Crane, J. (2018). Maternal supplementation alone with Lactobacillus rhamnosus HN001 during pregnancy and breastfeeding does not reduce infant eczema. Pediatric Allergy & Immunology, 29(3), 296-302. doi: 10.1111/pai.12874

Tweed, M., Purdie, G., & Wilkinson, T. (2017). Low performing students have insightfulness when they reflect-in-action. Medical Education, 51(3), 316-323. doi: 10.1111/medu.13206

Slykerman, R. F., Hood, F., Wickens, K., Thompson, J. M. D., Barthow, C., Murphy, R., Kang, J., … Crane, J., Stanley, T., Abels, P., Purdie, G., … the Probiotic in Pregnancy Study Group. (2017). Effect of Lactobacillus rhamnosus HN001 in pregnancy on postpartum symptoms of depression and anxiety: A randomised double-blind placebo-controlled trial. EBioMedicine, 24, 159-165. doi: 10.1016/j.ebiom.2017.09.013

Tweed, M. J., Stein, S., Wilkinson, T. J., Purdie, G., & Smith, J. (2017). Certainty and safe consequence responses provide additional information from multiple choice question assessments. BMC Medical Education, 17, 106. doi: 10.1186/s12909-017-0942-z

Wickens, K. L., Barthow, C. A., Murphy, R., Abels, P. R., Maude, R. M., Stone, P. R., … Stanley, T. V., Purdie, G. L., Kang, J. M., Hood, F. E., … Barnes, P. K., … Crane, J. (2017). Early pregnancy probiotic supplementation with Lactobacillus rhamnosus HN001 may reduce the prevalence of gestational diabetes mellitus: A randomised controlled trial. British Journal of Nutrition, 117(6), 804-813. doi: 10.1017/S0007114517000289

Mishra, P., Foley, D., Purdie, G., & Pringle, K. C. (2016). Intestinal perforation in premature neonates: The need for subsequent laparotomy after placement of peritoneal drains. Journal of Paediatrics & Child Health, 52(3), 272-277. doi: 10.1111/jpc.13013

Fingleton, J., Braithwaite, I., Travers, J., Bowles, D., Strik, R., Siebers, R., … Weatherall, M., Beasley, R., for the NZRHS Study Group, including Purdie, G. (2016). Serum periostin in obstructive airways disease. European Respiratory Journal, 47, 1383-1391. doi: 10.1183/13993003.01384-2015

Hamilton, K., Bennett, N. C., Purdie, G., & Herst, P. M. (2015). Standardized cranberry capsules for radiation cystitis in prostate cancer patients in New Zealand: A randomized double blinded, placebo controlled pilot study. Supportive Care in Cancer, 23(1), 95-102. doi: 10.1007/s00520-014-2335-8

Kanji, G., Weatherall, M., Peter, R., Purdie, G., & Page, R. (2015). Efficacy of regular sauna bathing for chronic tension-type headache: A randomized controlled study. Journal of Alternative & Complementary Medicine, 21(2), 103-109. doi: 10.1089/acm.2013.0466

Tripp, D. G., Purdie, G., & Hicks, P. (2015). Trends in the incidence of intensive care unit invasive mechanical ventilation and subsequent 2-year survival in very elderly New Zealanders. Internal Medicine Journal, 45(1), 80-85. doi: 10.1111/imj.12630

Langdana, F., Yogender, Y., Maharaj, D., Abels, P., Purdie, G., Tait, J., & Elder, R. (2015). Materno-fetal outcomes in patients with abnormally invasive placenta: A 14 year experience. Journal of Womens Health Care, 4(7), 286. doi: 10.4172/2167-0420.1000286

Fingleton, J., Travers, J., Williams, M., Charles, T., Bowles, D., Strik, R., Shirtcliffe, P., Weatherall, M., Beasley, R., for the New Zealand Respiratory Health Survey Study Group, including Purdie, G. (2015). Treatment responsiveness of phenotypes of symptomatic airways obstruction in adults. Journal of Allergy & Clinical Immunology, 136(3), 601-609. doi: 10.1016/j.jaci.2015.01.013

Mossman, B., Mossman, S., Purdie, G., & Schneider, E. (2015). Age dependent normal horizontal VOR gain of head impulse test as measured with video-oculography. Journal of Otolaryngology: Head & Neck Surgery, 44, 22. doi: 10.1186/s40463-015-0081-7

Martin, N., McHugh, H., Murtagh, J., Oliver-Rose, C., Panesar, D., Pengelly, H., Rieper, S., Schofield, H., Singh, V., Speed, A., Strachan, R., Tapsell, T. K., Trafford, S., van Ryn, S., Ward, E., Whiting, R., Wilson-van Duin, M., Wu, Z., Purdie, G., van der Deen, F. S., Thomson, G., Pearson, A. L., & Wilson, N. (2014). Observational study of the visibility of branded tobacco packaging and smoking at outdoor bars/cafés in Wellington, New Zealand. New Zealand Medical Journal, 127(1404). Retrieved from http://www.nzma.org.nz/journal

Gordon, S., Ellis, P., Gallagher, P., & Purdie, G. (2014). Service users teaching the recovery paradigm to final year medical students: A New Zealand approach. Health Issues, (113), 15-17.

Wickens, K., Stanley, T. V., Mitchell, E. A., Barthow, C., Fitzharris, P., Purdie, G., Siebers, R., … Crane, J. (2013). Early supplementation with Lactobacillus rhamnosus HN001 reduces eczema prevalence to 6 years: Does it also reduce atopic sensitization? Clinical & Experimental Allergy, 43(9), 1048-1057. doi: 10.1111/cea.12154

Wickens, K., Black, P., Stanley, T. V., Mitchell, E., Barthow, C., Fitzharris, P., Purdie, G., & Crane, J. (2012). A protective effect of Lactobacillus rhamnosus HN001 against eczema in the first 2 years of life persists to age 4 years. Clinical & Experimental Allergy, 42(7), 1071-1079. doi: 10.1111/j.1365-2222.2012.03975.x

Fink, J. W., Paine, S.-J., Gander, P. H., Harris, R. B., & Purdie, G. (2011). Changing response rates from Māori and non-Māori in national sleep health surveys. New Zealand Medical Journal, 124(1328). Retrieved from http://journal.nzma.org.nz/journal/124-1328/4505/content.pdf

Purdie, G. L., Purdie, D. J., & Harrison, A. A. (2011). Raynaud's phenomenon in medical laboratory workers who work with solvents. Journal of Rheumatology, 38(9), 1940-1946. doi: 10.3899/jrheum.101129

Mardani, J., Calder, L., Haydon-Carr, J., Purdie, G., & Jones, N. F. (2011). Throat swabbing for the primary prevention of rheumatic fever following health information. New Zealand Medical Journal, 124(1334). Retrieved from http://journal.nzma.org.nz/journal/124-1334/4659/content.pdf

Hill, S., Sarfati, D., Blakely, T., Robson, B., Purdie, G., Dennett, E., Cormack, D., Dew, K., … Kawachi, I. (2010). Ethnicity and management of colon cancer in New Zealand: Do indigenous patients get a worse deal? Cancer, 116(13), 3205-3214. doi: 10.1002/cncr.25127

Hill, S., Sarfati, D., Blakely, T., Robson, B., Purdie, G., Chen, J., Dennett, E., Cormack, D., Cunningham, R., Dew, K., … Kawachi, I. (2010). Survival disparities in indigenous and non-indigenous New Zealanders with colon cancer: The role of patient comorbidity, treatment and health service factors. Journal of Epidemiology & Community Health, 64(2), 117-123. doi: 10.1136/jech.2008.083816

McLeod, M., Harris, R., Purdie, G., Cormack, D., Robson, B., Sykes, P., Crengle, S., Iupati, D., & Walker, N. (2010). Improving survival disparities in cervical cancer between Māori and non-Māori women in New Zealand: A National Retrospective Cohort Study. Australian & New Zealand Journal of Public Health, 34(2), 193-199. doi: 10.1111/j.1753-6405.2010.00506.x

Sarfati, D., Hill, S., Purdie, G., Dennett, E., & Blakely, T. (2010). How well does routine hospitalisation data capture information on comorbidity in New Zealand? New Zealand Medical Journal, 123(1310). Retrieved from http://journal.nzma.org.nz/journal/123-1310/4010/content.pdf

Alexander, H., Irwin, C., Purdie, G., & Hunn, M. (2010). Incidence and management of high grade glioma in Māori and non-Māori patients. Journal of Clinical Neuroscience, 17(9), 1144-1147. doi: 10.1016/j.jocn.2010.01.033

Mihaere, K. M., Harris, R., Gander, P. H., Reid, P. M., Purdie, G., Robson, B., & Neill, A. (2009). Obstructive sleep apnea in New Zealand adults: Prevalence and risk factors among Māori and non-Māori. Sleep, 32(7), 949-956.

Poostchi, A., Mitchell, R., Nicholas, S., Purdie, G., & Wells, A. (2009). The iCare rebound tonometer: Comparisons with Goldmann tonometry, and influence of central corneal thickness. Clinical & Experimental Ophthalmology, 37(7), 687-691. doi: 10.1111/j.1442-9071.2009.02109.x

Purdie, G., Harrison, A., & Purdie, D. (2009). Prevalence of Raynaud's phenomenon in the adult New Zealand population. New Zealand Medical Journal, 122(1306). Retrieved from http://journal.nzma.org.nz/journal/122-1306/3890/content.pdf

Dekker, J. W., Wickens, K., Black, P. C., Stanley, T. V., Mitchell, E. A., Fitzharris, P., Tannock, G. W., Purdie, G., & Crane, J. (2009). Safety aspects of probiotic bacterial strains Lactobacillus rhamnosus HN001 and Bifidobacterium animalis subsp. lactis HN019 in human infants aged 0-2 years. International Dairy Journal, 19(3), 149-154. doi: 10.1016/j.idairyj.2008.10.004

Sarfati, D., Hill, S., Blakely, T., Robson, B., Purdie, G., Dennett, E., Cormack, D., & Dew, K. (2009). The effect of comorbidity on the use of adjuvant chemotherapy and survival from colon cancer: A retrospective cohort study. BMC Cancer, 9, 116. doi: 10.1186/1471-2407-9-116

Prescott, S. L., Wickens, K., Westcott, L., Jung, W., Currie, H., Black, P. N., Stanley, T. V., … Fitzharris, P., Siebers, R., … Crane, J., and the Probiotic Study Group, including Jones, B., Lampshire, P., Nicholson, A., & Purdie, G. (2008). Supplementation with Lactobacillus rhamnosus or Bifidobacterium lactis probiotics in pregnancy increases cord blood interferon-γ and breast milk transforming growth factor-β and immunoglobin A detection. Clinical & Experimental Allergy, 38(10), 1606-1614. doi: 10.1111/j.1365-2222.2008.03061.x

Horne, G., Devane, P., Adams, K., Davidson, A., & Purdie, G. (2008). The influence of steroid injections on the incidence of infection following total knee arthroplasty. New Zealand Medical Journal, 121(1268). Retrieved from http://journal.nzma.org.nz/journal/121-1268/2896/content.pdf

Wickens, K., Black, P. N., Stanley, T. V., Mitchell, E., Fitzharris, P., Tannock, G. W., Purdie, G., Crane, J., and the Probiotic Study Group, including Jones, B., Lampshire, P., & Munro, K. (2008). A differential effect of 2 probiotics in the prevention of eczema and atopy: A double-blind, randomized, placebo-controlled trial. Journal of Allergy & Clinical Immunology, 122(4), 788-794. doi: 10.1016/j.jaci.2008.07.011

Riddick, L., Thomson, G., Wilson, N., & Purdie, G. (2008). Killing the canary: The international epidemiology of the homicide of media workers. Journal of Epidemiology & Community Health, 62(8), 682-688. doi: 10.1136/jech.2007.062794

Simmonds, S., Robson, B., Cram, F., & Purdie, G. (2008). Kaupapa Maori epidemiology. Australasian Epidemiologist, 15(1), 3-6.

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