Assessing the impact of correlated environmental mixture on body mass index and waist hip ratio using Bayesian kernel regression model among older Canadian adults: a longitudinal study

Year:

2025

Applicant:

Mamiya, Hiroshi

Trainee:

Geddes, Spencer

Institution:

McGill University

Email:

hiroshi.mamiya@mcgill.ca

Project ID:

2510016

Approved Project Status:

Active

Project Summary

Studies suggest modifiable urban environmental factors have an impact on health outcomes, including obesity, a significant public health concern in Canada. As such, there is growing interest in funding urban infrastructure initiatives. However, existing studies mainly focus on individual urban features, and thus, a better understanding of the interacting effects between coexisting urban features is needed for more effective policy decisions. This study will estimate the nonlinear associations between many urban features and obesity at high spatial resolution using the Canadian Longitudinal Study on Aging cohort linked with environmetrics. The study will use a Bayesian kernel machine regression approach, which has seen use in other areas of epidemiology, and allows for an estimation of interacting effects between urban features. This is a longitudinal study which will use urban data from the Canadian Urban Environmental Health Research Consortium (CANUE), combined with Body Mass Index.