Projects per year
Dr Theo Niyonsenga is Associate Professor of Biostatistics, University of Canberra (UC) Faculty of Health, and member of both UC Health Research Institute (HRI) and Centre for Research and Action in Population Health (CeRAPH). Dr Niyonsenga was trained in Mathematics, Physics & Engineering Sciences (Bachelor of Science, National University of Rwanda, 1979-82); in Mathematical Statistics (Master of Science & PhD, University of Montreal, Canada, 1982-91); and completed his postdoctoral research training in Biometry (University of Montreal, Canada, 1991-92). Dr Niyonsenga has more than 20 years of experience working as a biostatistician in research, teaching and statistical consulting. He developed and applied statistical methods to collaborative research projects focusing on, but not limited to, the areas of multivariate data analysis methods such as structural equations modeling, longitudinal and multi-level data analysis, spatial statistics with application to spatial epidemiology. Dr Niyonsenga commenced his continuing position with the University of Canberra by end of January 2017. Prior to this relocation, he worked at the University of South Australia from September 2013 till January 2017. Other work experience was acquired as Adjunct Professor at the University of Saskatchewan School of Public Health (Canada); Associate Professor of Biostatistics and Epidemiology at the Florida International University School of Public Health (US); Research Associate at the University of Sherbrooke Clinical Research Centre (Canada); and as Consultant respectively for the Public Health Agency of Canada and Saskatoon Health Region, University of Saskatchewan as well as Quebec National Institutes for Public Health.
The interests in statistical methodology have been in spatial statistics and GIS environment, multivariate statistics as well as hierarchical and regression trees models with applications in cardiovascular disease risk factors, birth defects, pregnancy planning, substance abuse as well as HIV/AIDS risk behaviours and survival. In cardiovascular disease and risk factors, published work looked at: family history variables as risk factors of cardiovascular disease; geographic disparities in the use of and accessibility to health services; use of Hierarchical Bayesian models to deal with longitudinal and spatially correlated count data. In substance use and HIV/AIDS research, research focussed at conceptual models relating constructs such as substance use behaviours, acculturation and socio-cultural assets as well as growth models within the structural equations modelling approach. A secondary data analysis of the Youth Risk Behaviour Survey explored HIV/AIDS and substance use risk behaviours among adolescents. Other work explored the correlates of the inter-generation transmission of substance use (drug and alcohol drinking) between Latina mothers and daughters. Finally, multi-level survival models were also used to evaluate the role of socio-economic status variable in explaining racial disparities in AIDS survival. In these models, socio-economic indices were developed and used to measure rural-urban differences in the incidence of AIDS and to predict HIV/AIDS survival. Other work examined: effects of folic acid food fortification on the prevalence of neural tube defects in Canada; racial/ethnic and geographic variations in infant mortality rates and in childhood lead poisoning in South Florida. In terms of bio-psycho-social determinants of health, research focused on pregnancy planning and bio-psychosocial determinants of pregnancy length and fetal growth, exploring factors such stress and self-esteem.
Key Words: biostatistics; geographic variations; longitudinal study; cancer epidemiology; cancer research; cardiovascular risk factors; substance abuse; human immunodeficiency virus (HIV); acquired immunodeficiency syndrome (AIDS); psychosocial predictors; Spatio-temporal models; Multi-level and SEM Models; Pschosocial and biomedical determinants of health.
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Adjunct Associate Professor, University of South Australia
In men choosing radical prostatectomy for localised prostate cancer, does a multimodal pre-habilitation intervention give better functional and quality of life outcomes than usual care?
1/01/20 → 30/06/22
Environmental and social determinants of health in the Australian Capital Territory: program interventions aimed at reducing the burden of disease and avoidable hospital admissions.
5/04/19 → 30/04/23
Does ankle tape improve proprioception acuity immediately after application and following a netball session? A randomised controlled trialSmyth, E., Waddington, G., Witchalls, J., Newman, P., Weissensteiner, J., Hughes, S., Niyonsenga, T. & Drew, M., Mar 2021, In: Physical Therapy in Sport. 48, p. 20-25 6 p.
Research output: Contribution to journal › Article › peer-review
The knowledge of danger signs of obstetric complications among women in rural India: evaluating an integrated microfinance and health literacy programAhmad, D., Mohanty, I., Hazra, A. & Niyonsenga, T., 23 Jan 2021, In: BMC Pregnancy and Childbirth. 21, 1, p. 1-23 23 p., 79.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile
A Multilevel Mixed Effects Analysis of Informal Carers Health in Australia: The role of Community Participation, Social Support and Trust at Small Area levelMohanty, I., Niyonsenga, T., Cochrane, T. & Rickwood, D., Dec 2020, In: BMC Public Health. 20, 1, p. 1-16 16 p., 1801.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile1 Downloads (Pure)
Are changes in depressive symptoms, general health and residential area socio-economic status associated with trajectories of waist circumference and body mass index?Niyonsenga, T., Carroll, S. J., Coffee, N. T., Taylor, A. W. & Daniel, M., 8 Jan 2020, In: PLoS One. 15, 1, p. 1-19 19 p., e0227029.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile3 Citations (Scopus)15 Downloads (Pure)
A smartphone app for sedentary behaviour change in cardiac rehabilitation and the effect on hospital admissions: the ToDo-CR randomised controlled trial study protocolPatterson, K., Davey, R., Keegan, R., Niyonsenga, T., Mohanty, I., van Berlo, S. & Freene, N., 15 Dec 2020, In: BMJ Open. 10, 12, p. 1-13 13 p., e040479.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile3 Downloads (Pure)