Dr. Denis Talbot, Ph.D., is a regular investigator at the CHU de Québec – Laval University Research Center and professor in biostatistics at the Department of Social and Preventive Medicine of Laval University’s School of Medicine. His research interests focus on the development of statistical methods to perform causal inference and the application of such methods in health research, particularly in cardiovascular health research. Causal inference seeks to predict the effect that a potential intervention would have, for instance the effect of a public health policy or a medical treatment.
Model selection for causal inference
When observational data are utilized to investigate the relationship between an exposure and a disease, there can be variables that are both associated with the exposure and the disease. Such variables, called confounders, may distort the observed relationship between the exposure and the disease, unless adequate control is performed. Unfortunately, identifying confounders solely based on substantive knowledge can be difficult. Moreover, once confounders are identified, an appropriate statistical modeling approach must be employed to eliminate the bias that confounders produce.
One strategy to circumvent these problems would be to use statistical methods to supplement scientific knowledge with the information available in the data. Such methods would facilitate the identification and the control for confounders, and thus facilitate the identification of the causal relationship between the exposure and the disease. An important part of Dr. Talbot’s research program, funded by the Natural Sciences and Engineering Research Council of Canada, targets the development of such statistical methods.
Other interests in causal inference
Dr. Talbot is also interested in many other aspects of causal inference, notably in causal mediation methods and treatment regime effects (for example, cumulative exposure, and marginal structural models). He is involved in various collaborative research projects, for instance on health at work, nutrition or physical activity.
1050, chemin Sainte-Foy
Canada G1S 4L8
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Body-mass index and metastatic melanoma outcomes.Journal Article
Lancet Oncol, 19 (5), pp. e226, 2018, ISSN: 1470-2045.
Importance of the lipid-related pathways in the association between statins, mortality, and cardiovascular disease risk: The Multi-Ethnic Study of Atherosclerosis.Journal Article
Pharmacoepidemiol Drug Saf, 27 (4), pp. 365-372, 2018, ISSN: 1053-8569.
Saturated Fats from Butter but Not from Cheese Increase HDL-Mediated Cholesterol Efflux Capacity from J774 Macrophages in Men and Women with Abdominal Obesity.Journal Article
J Nutr, 148 (4), pp. 573-580, 2018, ISSN: 0022-3166.
Evaluation of the Quebec Healthy Enterprise Standard: Effect on Adverse Psychosocial Work Factors and Psychological Distress.Journal Article
Int J Environ Res Public Health, 15 (3), 2018, ISSN: 1661-7827.
Development and Validation of a Behavioural Index for Adaptation to High Summer Temperatures among Urban Dwellers.Journal Article
Int J Environ Res Public Health, 14 (7), 2017, ISSN: 1661-7827.
- Centre hospitalier universitaire de Québec - CHU de Québec-Université Laval, Subvention, Centre hospitalier universitaire de Québec - Université Laval, Centres de recherche affiliés, from 2017-01-01 to 2099-12-31
- DecreAsing sedentary behaviour and inCreasing physical acTIvity fOr healthy ageing (ACTION) study, Subvention, Instituts de recherche en santé du Canada, Subvention Projet, from 2017-04-01 to 2021-08-31
- Inégalités sociales dans les trajectoires d'usage des traitements oraux pour le cancer du sein : Une comparaison France - Québec, Subvention, Instituts de recherche en santé du Canada, Subvention de fonctionnement, from 2017-04-01 to 2019-03-31
- Model and variable selection for causal inference., Subvention, Conseil de recherches en sciences naturelles et génie Canada, Subventions à la découverte SD (individuelles et d'équipe), from 2016-04-01 to 2021-03-31
- Observatoire québécois de l'adaptation aux changements climatiques, Subvention, Institut national de santé publique du Québec, from 2015-01-01 to 2019-03-31
- Real-World Cost-Effectiveness of Direct Oral Anticoagulants in Atrial Fibrillation: A Canadian Health Technology Reassessment Study, Subvention, Instituts de recherche en santé du Canada, Subvention Projet, from 2018-04-01 to 2020-09-30
Recently finished projects
- Sélection de modèles statistiques pour effectuer de l'inférence causale à l'aide de données épidémiologiques., Subvention, Fondation du CHU de Québec, from 2016-07-19 to 2017-03-31