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Scientist, Clinical Epidemiology, Ottawa Hospital Research Institute
Assistant Professor, Department of Epidemiology and Community Medicine, Faculty of
Medicine, University of Ottawa
Biographical sketch
Dr. Ramsay's background is in mathematics (MSc in commutative algebra from Queen's University) and statistics. When he received his doctorate in statistics from Queen's University in 2000, he was awarded the Statistical Society of Canada's Pierre Robillard award for the best statistics dissertation of the year. After working for one year as a methodologist at Statistics Canada, he spent the following five years with the Institute of Population Health at the University of Ottawa. In 2004 he was awarded the NSERC/SSHRC/McLaughlin Chair in Quantitative Risk assessment, became a Principal Scientist with the Institute of Population Health, and was appointed Assistant Professor in the University of Ottawa's Department of Epidemiology and Community Medicine. He joined the Methods Centre of the OHRI Clinical Epidemiology Program in 2006 as an Associate Scientist where he now works as a biostatistician on a variety of different studies. He is passionate about applying the principles of biostatistics to scientific research and is interested in helping with all current and future research projects. He remains committed to education in biostatistics, both lecturing and supervising graduate students in the Department of Epidemiology and Community Medicine.
Research
As is illustrated by his list of publications, Dr. Ramsay's research interests extend over a diverse range of methodologic issues. He is currently the Thrombosis Unit biostatistician but consults with many different OHRI scientists in a variety of different areas. His research program is based on his consulting work, generalizing methodologic solutions that come up in the design and analysis of studies taking place at the OHRI. He believes that good biostatistical research should be aimed at solving applied problems, rather than formulating solutions to theoretical problems and then waiting for applications to arise which might use those solutions. Dr. Ramsay's research role is therefore primarily one of collaborator in clinical epidemiology studies initiated by other scientists. His personal research agenda of developing methodology follows from this collaboration.
Recent Publications
Fung, K.Y. Krewski, D. Ramsay, T. A comparison of methods for the analysis of recurrent health outcome data with environmental covariates. Statistics in Medicine (in press).
Nash, J. Ramsay, T. Viewpoint: Public health and security, house calls and medical service co-payments. Healthcare Policy (in press).
Fung, K.Y. Krewski, D. Burnett, R. Ramsay, T. Chen, Y. (2005) Testing the harvesting hypothesis by time-domain regression analysis. II: Covariate effects. Journal of Toxicology and Environmental Health 28(13-14):1155-1166.
Shin, H. Ramsay, T. Krewski, D. Zielinski, J. (2005) The effect of censoring on cancer risk estimates in occupational radiation exposure studies. Journal of Exposure Analysis and Environmental Epidemiology. 15: 398-406.
Ramsay, T. Elkum, N. Three different methods for outlier detection - a comparison. Journal of Biopharmaceutical Statistics. 2005;15(1):43-52.
Ramsay, T. The difficulties of defining the term "GM". Science, 2004; 303(5665):1765-1769.
Ramsay, T. Burnett, R. Krewski, D. Bias in a generalized additive models for spatial epidemiologic data. Environmental Health Perspectives, 2003;111:1283--1288.
Ramsay, T. Burnett, R. Krewski, D. Underestimation of standard errors in generalized additive models linking mortality to ambient particulate matter. Epidemiology 2003;14(1):18-23.
Ramsay, T. (2002) Spline smoothing over difficult regions. Journal of the Royal Statistical Society, Series B, 64, 307-319.
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