Dr Ariyapala Samaranayaka
Position | Senior Research Fellow |
---|---|
Qualifications | BSc MPhil PhD |
Research summary | Biostatistics |
Research
As a member of the Biostatistics Centre, Ari is available for biostatistical advice to researchers in the Division of Health Sciences, University of Otago. He has experience as a biostatistician in health researches more than a decade, and has contributed to more than 50 peer-reviewed health-related publications. He has worked on a wide variety of projects involving injuries, motor vehicle traffic crashes, farm and work injuries, disabilities, large longitudinal cohort studies, cross sectional surveys, as well as on related methodological developments.
Publications
Chan, R., Walker, R. J., Samaranayaka, A., & Schollum, J. B. W. (2022). Long-term impact of early non-infectious complications at the initiation of peritoneal dialysis. Peritoneal Dialysis International. Advance online publication. doi: 10.1177/08968608221132647
Gray, A. R., Cameron, C., Samaranayaka, A., & Turner, R. M. (2022). What statistical software should I use? And does it actually matter? New Zealand Medical Student Journal, (34), 38-40. Retrieved from https://www.nzmsj.com/
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
Butcher, E., Walker, R., Wyeth, E., Samaranayaka, A., Schollum, J., & Derrett, S. (2022). Health-related quality of life and disability among older New Zealanders with kidney failure: A prospective study. Canadian Journal of Kidney Health & Disease. Advance online publication. doi: 10.1177/20543581221094712
Kallarakkal, T. G., Siriwardena, B. S. M. S., Samaranayaka, A., De Silva, R., & Tilakaratne, W. M. (2022). A validated predictive model for risk of nodal metastasis in node negative oral squamous cell carcinoma of the buccal mucosa and tongue. Journal of Oral Pathology & Medicine. Advance online publication. doi: 10.1111/jop.13294
Butcher, E., Walker, R., Wyeth, E., Samaranayaka, A., Schollum, J., & Derrett, S. (2022). Health-related quality of life and disability among older New Zealanders with kidney failure: A prospective study. Canadian Journal of Kidney Health & Disease. Advance online publication. doi: 10.1177/20543581221094712
Journal - Research Article
Chan, R., Walker, R. J., Samaranayaka, A., & Schollum, J. B. W. (2022). Long-term impact of early non-infectious complications at the initiation of peritoneal dialysis. Peritoneal Dialysis International. Advance online publication. doi: 10.1177/08968608221132647
Journal - Research Article
Gray, A. R., Cameron, C., Samaranayaka, A., & Turner, R. M. (2022). What statistical software should I use? And does it actually matter? New Zealand Medical Student Journal, (34), 38-40. Retrieved from https://www.nzmsj.com/
Journal - Research Article
Kallarakkal, T. G., Siriwardena, B. S. M. S., Samaranayaka, A., De Silva, R., & Tilakaratne, W. M. (2022). A validated predictive model for risk of nodal metastasis in node negative oral squamous cell carcinoma of the buccal mucosa and tongue. Journal of Oral Pathology & Medicine. Advance online publication. doi: 10.1111/jop.13294
Journal - Research Article
Maclennan, B., Wyeth, E., Samaranayaka, A., & Derrett, S. (2022). Predictors of EQ-5D-3L outcomes amongst injured Māori: 1-year post-injury findings from a New Zealand cohort study. Quality of Life Research, 31, 1689-1701. doi: 10.1007/s11136-022-03085-3
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
Taylor, J. E., McLean, R., Samaranayaka, A., & Connolly, M. J. (2022). How does driving anxiety relate to the health and quality of life of older drivers? Journal of Applied Gerontology. Advance online publication. doi: 10.1177/07334648211072540
Journal - Research Article
Ameratunga, S., Samaranayaka, A., Wyeth, E. H., Davie, G., Lilley, R., Wilson, S., Kokaua, J., & Derrett, S. (2021). Prevalence and predictors of post-traumatic stress symptoms in 2200 hospitalised and non-hospitalised injured New Zealanders. Australian & New Zealand Journal of Psychiatry. Advance online publication. doi: 10.1177/00048674211060747
Journal - Research Article
Cameron, C., Turner, R., & Samaranayaka, A. (2021). Understanding confidence intervals and why they are so important. New Zealand Medical Student Journal, (33), 42-43. Retrieved from https://www.nzmsj.com/
Journal - Research Article
Connor, J., Brookland, R., & Samaranayaka, A. (2021). Older drivers and their future mobility: Views and involvement of their adult children. Journal of Applied Gerontology, 40(1), 55-66. doi: 10.1177/0733464819894545
Journal - Research Article
Cryer, C., Gulliver, P., Davie, G., Samaranayaka, A., & Fowler, C. (2021). Missing cases of injury death: Use of quantitative methods and case reviews to inform future improvements in case definition. Injury Prevention. Advance online publication. doi: 10.1136/injuryprev-2021-044371
Journal - Research Article
Leitch, S., Dovey, S., Cunningham, W., Wallis, K., Eggleton, K., Lillis, S., McMenamin, A., Williamson, M., Reith, D., Samaranayaka, A., & Tilyard, M. (2021). Epidemiology of healthcare harm in New Zealand general practice: A retrospective records review study. BMJ Open, 11, e048316. doi: 10.1136/bmjopen-2020-048316
Journal - Research Article
Narayanan, A., Gill, M., Leem, C., Li, C., Mein Smith, F., Shepherd, B., … Samaranayaka, A., Ergler, C., & Macmillan, A. (2021). Students' use of caffeine, alcohol, dietary supplements, and illegal substances for improving academic performance in a New Zealand university. Health Psychology & Behavioral Medicine, 9(1), 917-932. doi: 10.1080/21642850.2021.1990763
Journal - Research Article
Richardson, A. E., Derrett, S., Samaranayaka, A., & Wyeth, E. H. (2021). Prevalence and predictors of psychological distress following injury: Findings from a prospective cohort study. Injury Epidemiology, 8(1), 41. doi: 10.1186/s40621-021-00337-7
Journal - Research Article
Richardson, A., Samaranayaka, A., Sullivan, M., & Derrett, S. (2021). Secondary health conditions and disability among people with spinal cord injury: A prospective cohort study. Journal of Spinal Cord Medicine, 44(1), 19-28. doi: 10.1080/10790268.2019.1581392
Journal - Research Article
Samaranayaka, A., Cameron, C., & Turner, R. M. (2021). Sample size in health research. New Zealand Medical Student Journal, 32, 52-54. Retrieved from https://www.nzmsj.com/
Journal - Research Article
Shettigar, R., Samaranayaka, A., Schollum, J. B. W., Wyeth, E. H., Derrett, S., & Walker, R. J. (2021). Predictors of health deterioration among older New Zealanders undergoing dialysis: A three-year accelerated longitudinal cohort study. Canadian Journal of Kidney Health & Disease, 8. doi: 10.1177/20543581211022207
Journal - Research Article
Cameron, C., Samaranayaka, A., & Turner, R. M. (2020). P values: What are their significance? New Zealand Medical Student Journal, 31, 48-49.
Journal - Research Article
Harcombe, H., Samaranayaka, A., Wyeth, E. H., Davie, G., Cameron, I. D., Lilley, R., & Derrett, S. (2020). Predictors of subsequent injury at work: Findings from a prospective cohort of injured workers in New Zealand. Occupational & Environmental Medicine, 77, 839-846. doi: 10.1136/oemed-2020-106597
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
Sopoaga, F., Nada-Raja, S., Leckie, T., & Samaranayaka, A. (2020). Mental health and wellbeing of Pacific students: Protocol of a Pacific perspective study. Pacific Health Dialog, 21(5), 272-280. doi: 10.26635/phd.2020.626
Journal - Research Article
Turner, R., Samaranayaka, A., & Cameron, C. (2020). Parametric vs nonparametric statistical methods: Which is better, and why? New Zealand Medical Student Journal, 30, 61-62.
Journal - Research Article
Baker, W., Samaranayaka, A., Wyeth, E., Ameratunga, S., & Derrett, S. (2019). Migrants and disability following injury: Findings from a prospective study in New Zealand. Australian & New Zealand Journal of Public Health, 43(5), 470-476. doi: 10.1111/1753-6405.12927
Journal - Research Article
Chan, J. E., Samaranayaka, A., & Paterson, H. (2019). Seasonal and gestational variation in perinatal depression in a prospective cohort in New Zealand. Australian & New Zealand Journal of Obstetrics & Gynaecology, 59, 514-522. doi: 10.1111/ajo.12912
Journal - Research Article
Cryer, C., Davie, G., Gulliver, P., & Samaranayaka, A. (2019). Use of mixed methods to investigate case definitions to improve the identification of serious injury cases from hospital episode data. Injury Prevention, 25(6), 552-556. doi: 10.1136/injuryprev-2019-043293
Journal - Research Article
Derrett, S., Gunter, K. E., Samaranayaka, A., Singer, S. J., Nocon, R. S., Quinn, M. T., … Chin, M. H. (2019). Development and testing of the Provider and Staff Perceptions of Integrated Care (PSPIC) survey. Medical Care Research & Review, 76(6), 807-829. doi: 10.1177/1077558717745936
Journal - Research Article
McNoe, B., Schollum, J. B. W., Derrett, S., Marshall, M. R., Henderson, A., Samaranayaka, A., & Walker, R. J. (2019). Recruitment and participant baseline characteristics in the dialysis outcomes in those aged 65 years or older study. BMC Nephrology, 20, 137. doi: 10.1186/s12882-019-1328-8
Journal - Research Article
Samaranayaka, A., Turner, R., & Cameron, C. (2019). Kaplan-Meier plots. New Zealand Medical Student Journal, 28, 45-46.
Journal - Research Article
Turner, R. M., Cameron, C., & Samaranayaka, A. (2019). Understanding receiver operator characteristic (ROC) curves. New Zealand Medical Student Journal, 29, 50-51.
Journal - Research Article
Wyeth, E. H., Samaranayaka, A., Lambert, M., Tapsell, M., Anselm, D., Ellison, P., … Derrett, S. (2019). Understanding longer-term disability outcomes for Māori and non-Māori after hospitalisation for injury: Results from a longitudinal cohort study. Public Health, 176, 118-127. doi: 10.1016/j.puhe.2018.08.014
Journal - Research Article
Wyeth, E., Lambert, M., Samaranayaka, A., Harcombe, H., Davie, G., & Derrett, S. (2019). Subsequent injuries experienced by Māori: Results from a 24-month prospective study in New Zealand. New Zealand Medical Journal, 132(1499), 23-35. Retrieved from https://www.nzma.org.nz/journal
Journal - Research Article
Davie, G., Samaranayaka, A., & Derrett, S. (2018). The role of pre-existing comorbidity on the rate of recovery following injury: A longitudinal cohort study. PLoS ONE, 13(2), e0193019. doi: 10.1371/journal.pone.0193019
Journal - Research Article
De Silva, R. K., Siriwardena, B. S. M. S., Samaranayaka, A., Abeyasinghe, W. A. M. U. L., & Tilakaratne, W. M. (2018). A model to predict nodal metastasis in patients with oral squamous cell carcinoma. PLoS ONE, 13(8), e0201755. doi: 10.1371/journal.pone.0201755
Journal - Research Article
Harcombe, H., Davie, G., Wyeth, E., Samaranayaka, A., & Derrett, S. (2018). Injury upon injury: A prospective cohort study examining subsequent injury claims in the 24 months following a substantial injury. Injury Prevention, 24(6), 460-467. doi: 10.1136/injuryprev-2017-042467
Journal - Research Article
Leitch, S., Dovey, S. M., Samaranayaka, A., Reith, D. M., Wallis, K. A., Eggleton, K. S., … Williamson, M. I., … Tilyard, M. W. (2018). Characteristics of a stratified random sample of New Zealand general practices. Journal of Primary Health Care, 10(2), 114-124. doi: 10.1071/HC17089
Journal - Research Article
Samaranayaka, S., Walker, R. J., Samaranayaka, A., Derrett, S., & Schollum, J. B. W. (2018). Medication exposure and health outcomes in older patients with end-stage kidney disease: A prospective study undertaken in New Zealand. Drugs & Aging, 35, 1005-1015. doi: 10.1007/s40266-018-0582-y
Journal - Research Article
Taylor, J. E., Connolly, M. J., Brookland, R., & Samaranayaka, A. (2018). Understanding driving anxiety in older adults. Maturitas, 118, 51-55. doi: 10.1016/j.maturitas.2018.10.008
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
Derrett, S., Samaranayaka, A., Schollum, J. B. W., McNoe, B., Marshall, M. R., Williams, S., Wyeth, E. H., & Walker, R. J. (2017). Predictors of health deterioration among older adults after 12 months of dialysis therapy: A longitudinal cohort study from New Zealand. American Journal of Kidney Diseases, 70(6), 798-806. doi: 10.1053/j.ajkd.2017.06.023
Journal - Research Article
Hoye, N. A., Wilson, L. C., Wilkins, G. T., Jardine, D. L., Putt, T. L., Samaranayaka, A., Schollum, J. B. W., & Walker, R. J. (2017). Endovascular renal denervation in end-stage kidney disease patients: Cardiovascular protection: A proof-of-concept study. Kidney International Reports, 2(5), 856-865. doi: 10.1016/j.ekir.2017.04.012
Journal - Research Article
Page, M. J., Wyeth, E. H., Samaranayaka, A., McNoe, B., Walker, R. C., Schollum, J., … Walker, R., & Derrett, S. (2017). Accuracy of ethnicity data recorded in hospital-based patient clinical records and the Australia and New Zealand Dialysis and Transplant Registry. New Zealand Medical Journal, 130(1454), 65-71. Retrieved from https://www.nzma.org.nz/journal
Journal - Research Article
Samaranayaka, C., Samaranayaka, A., Barson, D., & De Silva, R. K. (2017). Factors influencing trends in trauma-associated orbital cavity reconstruction procedures and time delay: New Zealand national data 2000–2014. Trauma, 20(4), 258-267. doi: 10.1177/1460408617719477
Journal - Research Article
Wyeth, E. H., Samaranayaka, A., Davie, G., & Derrett, S. (2017). Prevalence and predictors of disability for Māori 24 months after injury. Australian & New Zealand Journal of Public Health, 41(3), 262-268. doi: 10.1111/1753-6405.12657
Journal - Research Article
Harcombe, H., Samaranayaka, A., & Derrett, S. (2016). Predictors of reduced frequency of physical activity 3 months after injury: Findings from the prospective outcomes of injury study. Physical Therapy, 96(12), 1885-1895. doi: 10.2522/ptj.20160038
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
Slatter, T. L., Hsia, H., Samaranayaka, A., Sykes, P., Clow, W., Devenish, C. J., … Royds, J. A., … Hung, N. A. (2015). Loss of ATRX and DAXX expression identifies poor prognosis for smooth muscle tumours of uncertain malignant potential and early stage uterine leiomyosarcoma. Journal of Pathology: Clinical Research, 1(2), 95-105. doi: 10.1002/cjp2.11
Journal - Research Article
Connor, J., Cousins, K., Samaranayaka, A., & Kypri, K. (2014). Situational and contextual factors that increase the risk of harm when students drink: Case-control and case-crossover investigation. Drug & Alcohol Review, 33(4), 401-411. doi: 10.1111/dar.12172
Journal - Research Article
Cryer, C., Langley, J. D., Samaranayaka, A., Davie, G., Morgaine, K., Lilley, R., & Barson, D. (2014). An outcome evaluation of a New Zealand farm safety intervention: A historical cohort study. American Journal of Industrial Medicine, 57(4), 458-467. doi: 10.1002/ajim.22290
Journal - Research Article
Cryer, C., Samaranayaka, A., Langley, J. D., & Davie, G. (2014). The epidemiology of life-threatening work-related injury: A demonstration paper. American Journal of Industrial Medicine, 57(4), 425-437. doi: 10.1002/ajim.22301
Journal - Research Article
Harcombe, H., Derrett, S., Samaranayaka, A., Davie, G., Wyeth, E., & Wilson, S. (2014). Factors predictive of subsequent injury in a longitudinal cohort study. Injury Prevention, 20(6), 393-400. doi: 10.1136/injuryprev-2014-041183
Journal - Research Article
Langley, J. D., Lilley, R., Wilson, S., Derrett, S., Samaranayaka, A., Davie, G., … Wyeth, E. H., Hansen, P., & Hokowhitu, B. (2014). Factors associated with non-participation in one or two follow-up phases in a cohort study of injured adults. Injury Prevention, 19, 428-433. doi: 10.1136/injuryprev-2012-040685
Journal - Research Article
Langley, J., Lilley, R., Samaranayaka, A., & Derrett, S. (2014). Work status and disability trajectories over 12 months after injury among workers in New Zealand. New Zealand Medical Journal, 127(1390). Retrieved from http://www.nzma.org.nz/journal
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
Wilson, S. J., Derrett, S., Cameron, I. D., Samaranayaka, A., Davie, G., & Langley, J. (2014). Prevalence of poor outcomes soon after injury and their association with the severity of the injury. Injury Prevention, 20, 57-61. doi: 10.1136/injuryprev-2012-040690
Journal - Research Article
Chalmers, D. J., Samaranayaka, A., & McNoe, B. M. (2013). Risk factors for injury in community-level football: A cohort study. International Journal of Injury Control & Safety Promotion, 20(1), 68-78. doi: 10.1080/17457300.2012.674044
Journal - Research Article
Derrett, S., Wilson, S., Samaranayaka, A., Langley, J., Wyeth, E., Ameratunga, S., Lilley, R., Davie, G., & Mauiliu, M. (2013). Prevalence and predictors of disability 24-months after injury for hospitalised and non-hospitalised participants: Results from a longitudinal cohort study in New Zealand. PLoS ONE, 8(11), e80194. doi: 10.1371/journal.pone.0080194
Journal - Research Article
Langley, J., Begg, D., Samaranayaka, A., Brookland, R., & Weiss, H. (2013). Unsupervised driving by learner licence holders: Associated characteristics and crash risk. Accident Analysis & Prevention, 60, 24-30. doi: 10.1016/j.aap.2013.07.021
Journal - Research Article
Langley, J., Samaranayaka, A., & Begg, D. J. (2013). Age, period and cohort effects on the incidence of motorcyclist casualties in traffic crashes. Injury Prevention, 19(3), 153-157. doi: 10.1136/injuryprev-2012-040345
Journal - Research Article
Mauiliu, M., Derrett, S., Samaranayaka, A., Sopoaga, F., Kokaua, J., & Davie, G. (2013). Pacific peoples three months after injury: A comparison of outcomes between Pacific and non-Pacific participants in a NZ cohort study. Australian & New Zealand Journal of Public Health, 37(5), 463-469. doi: 10.1111/1753-6405.12124
Journal - Research Article
Wyeth, E. H., Derrett, S., Hokowhitu, B., & Samaranayaka, A. (2013). Indigenous injury outcomes: Life satisfaction among injured Māori in New Zealand three months after injury. Health & Quality of Life Outcomes, 11, 120. doi: 10.1186/1477-7525-11-120
Journal - Research Article
Begg, D., Sullman, M., & Samaranayaka, A. (2012). The characteristics of young pre-licensed drivers: Evidence from the New Zealand Drivers Study. Accident Analysis & Prevention, 45, 539-546. doi: 10.1016/j.aap.2011.09.006
Journal - Research Article
Chalmers, D. J., Samaranayaka, A., Gulliver, P., & McNoe, B. (2012). Risk factors for injury in rugby union football in New Zealand: A cohort study. British Journal of Sports Medicine, 46(2), 95-102. doi: 10.1136/bjsports-2011-090272
Journal - Research Article
Derrett, S., Samaranayaka, A., Wilson, S., Langley, J., Ameratunga, S., Cameron, I. D., Lilley, R., Wyeth, E., & Davie, G. (2012). Prevalence and predictors of sub-acute phase disability after injury among hospitalised and non-hospitalised groups: A longitudinal cohort study. PLoS ONE, 7(9), e44909. doi: 10.1371/journal.pone.0044909
Journal - Research Article
Langley, J., Begg, D., Brookland, R., Samaranayaka, A., Jordan, H., & Davie, G. (2012). Nonprogression through graduated driver licensing: Characteristics, traffic offending, and reasons for nonprogression. Traffic Injury Prevention, 13(1), 7-13. doi: 10.1080/15389588.2011.635170
Journal - Research Article
Wilson, S. J., Begg, D. J., & Samaranayaka, A. (2012). Validity of using linked hospital and police traffic crash records to analyse motorcycle injury crash characteristics. Accident Analysis & Prevention, 49, 30-35. doi: 10.1016/j.aap.2011.03.007
Journal - Research Article
Cryer, C., Gulliver, P., Langley, J., Davie, G., Samaranayaka, A., & Fowler, C. (2011). A proposed theoretical definition to address the undercounting of injury deaths. Injury Prevention, 17, 219-221. doi: 10.1136/injuryprev-2011-040039
Journal - Research Article
Davie, G., Samaranayaka, A., Langley, J. D., & Barson, D. (2011). Estimating person-based injury incidence: Accuracy of an algorithm to identify readmissions from hospital discharge data. Injury Prevention, 17(5), 338-342. doi: 10.1136/injuryprev-2011-040090
Journal - Research Article
Derrett, S., Davie, G., Ameratunga, S., Wyeth, E., Colhoun, S., Wilson, S., Samaranayaka, A., Lilley, R., Hokowhitu, B., Hansen, P., & Langley, J. (2011). Prospective Outcomes of Injury Study: Recruitment, and participant characteristics, health and disability status. Injury Prevention, 17(6), 415-418. doi: 10.1136/injuryprev-2011-040044
Journal - Research Article
Kypri, K., Samaranayaka, A., Connor, J., Langley, J. D., & MacLennan, B. (2011). Non-response bias in a web-based health behaviour survey of New Zealand tertiary students. Preventive Medicine, 53(4-5), 274-277. doi: 10.1016/j.ypmed.2011.07.017
Journal - Research Article
Langley, J., Samaranayaka, A., Davie, G., & Campbell, A. J. (2011). Age, cohort and period effects on hip fracture incidence: Analysis and predictions from New Zealand data 1974-2007. Osteoporosis International, 22(1), 105-111. doi: 10.1007/s00198-010-1205-6
Journal - Research Article
Samaranayaka, A., & Fletcher, D. (2010). Modelling environmental stochasticity in adult survival for a long-lived species. Ecological Modelling, 221(3), 423-427. doi: 10.1016/j.ecolmodel.2009.10.016
Journal - Research Article
Davie, G., Langley, J., Samaranayaka, A., & Weatherspoon, M. E. (2008). Accuracy of injury coding under ICD-10-AM for New Zealand public hospital discharges. Injury Prevention, 14, 319-323. doi: 10.1136/ip.2007.017954
Journal - Research Article
dos Santos Dias, C. T., Samaranayaka, A., & Manly, B. (2008). On the use of correlated beta random variables with animal population modelling. Ecological Modelling, 215, 293-300.
Journal - Research Article
Samaranayaka, A., Engås, A., & Jørgensen, T. (1997). Effects of hanging ratio and fishing depth on the catch rates of drifting tuna gillnets in Sri Lankan waters. Fisheries Research, 29, 1-12.
Journal - Research Article
Cousins, K., Norris, P., Horsburgh, S., Smith, A., Keown, S., Samaranayaka, A., Marra, C., & Churchward, M. (2021). Impact of removing prescription charges on health outcomes: Protocol for a randomised controlled trial. BMJ Open, 11, e049261. doi: 10.1136/bmjopen-2021-049261
Journal - Research Other
Derrett, S., Wyeth, E. H., Richardson, A., Davie, G., Samaranayaka, A., Lilley, R., & Harcombe, H. (2021). Prospective Outcomes of Injury Study 10 Years on (POIS-10): An observational cohort study. Methods & Protocols, 4(2), 35. doi: 10.3390/mps4020035
Journal - Research Other
Derrett, S., Harcombe, H., Wyeth, E., Davie, G., Samaranayaka, A., Hansen, P., … Sullivan, T., Wilson, S., & Barson, D. (2017). Subsequent Injury Study (SInS): Improving outcomes for injured New Zealanders. Injury Prevention, 23(6), 429. doi: 10.1136/injuryprev-2016-042193
Journal - Research Other
Dovey, S. M., Leitch, S., Wallis, K. A., Eggleton, K. S., Cunningham, W. K., Williamson, M. I., … Tilyard, M. W., Reith, D. M., Samaranayaka, A., & Hall, J. E. (2017). Epidemiology of patient harms in New Zealand: Protocol of a general practice records review study. JMIR Research Protocols, 6(1), e10. doi: 10.2196/resprot.6696
Journal - Research Other
Tun, T., Nyunt, W. W., Latt, K. Z., Samaranayaka, A., Crump, J. A., Thinn, K. K., Cook, G. M., & Aung, H. L. (2016). Drug-resistant tuberculosis among previously treated patients in Yangon, Myanmar. International Journal of Mycobacteriology, 5(3), 366-367. doi: 10.1016/j.ijmyco.2016.06.004
Journal - Research Other