Publications

These publications are examples of research made possible with data from CanPath and its regional cohorts.

2022

Socio-Demographic Factors Associated With COVID-19 Vaccine Hesitancy Among Middle-Aged Adults During the Quebec’s Vaccination Campaign

Authors: Rodolphe Jantzen, Mathieu Maltais, Philippe Broët

This study aimed to describe how socioeconomic and demographic characteristics affect vaccine hesitancy. Using data from 6,105 CARTaGENE participants, researchers found that those born outside of Canada and those with a household income under $100,000 had the greatest hesitancy.

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2022

Five-year absolute risk estimates of colorectal cancer based on CCRAT model and polygenic risk scores: A validation study using the Quebec population-based cohort CARTaGENE

Authors: Rodolphe Jantzen, Yves Payette, Thibault de Malliard, Catherine Labbé, Nolwenn Noisel, Philippe Broët

This study aimed to assess the Colorectal Cancer Risk Assessment tool’s predictive performance alongside three polygenic risk scores to predict the occurrence of colorectal cancer within five years. Using data from 6,747 CARTaGENE participants, the researchers found that this tool requires better calibrations before practical use in Québec.

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2021

Validation of breast cancer risk assessment tools on a French-Canadian population-based cohort

Authors: Rodolphe Jantzen, Yves Payette, Thibault de Malliard, Catherine Labbe, Nolwenn Noisel, Philippe Broet

This study evaluated the use of the Breast Cancer Risk Assessment Tool (BCRAT), International Breast Cancer Intervention Study risk evaluation tool (IBIS), Polygenic Risk Scores (PRS) and combined scores to predict the occurrence of invasive breast cancers at 5 years in a French-Canadian population.

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2020

Quantifying the Predictive Accuracy of a Polygenic Risk Score for Predicting Incident Cancer Cases: Application to the CARTaGENE Cohort

Authors: Julianne Duhaze, Rodolpje Jantzen, Yves Payette, Thibault De Malliard, Catherine Labbe, Nolwenn Noisel, Philippe Broet

This study evaluated the 5-year predictivity of an 18-single nucleotide polymorphism PRS for incident breast cancer cases in the CARTaGENE cohort using pseudo R^2 indices. It concluded that the proposed pseudo-R^2 is easy to implement and well suited to evaluate PRS for predicting incident events in cohort studies.

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