Date/Time
Date(s) - 07/11/2025
3:30 pm - 4:30 pm

Location: Hamilton Hall, Room 305

Speaker: Patrick Brown (University of Toronto)

Title: Daily air pollution and mortality with a hierarchical functional model

Abstract:
Quantifying the short term health effects of air pollution is a task with many steps: uncertainty and gap-filling in exposures, adjusting for temporal dependence and trends in health outcomes, creating flexible yet stable models for exposure-response functions, and combining data from multiple cities.  In collaboration with Health Canada, our group has created a comprehensive and innovative methodology for this problem, with the last pieces currently being put together.  The core of the methodology is the case-crossover model, which has a non-standard likelihood requiring specialised model-fitting tools.  The latest development is the creation of a hierarchical functional model, which improves on the current ‘separate and combine’ method by producing stable estimates in smaller cities.  A near-monotone smoothing model is next on the agenda and preliminary results will be shown.

Coffee will be served in the same room, HH 216 at 3:00pm. All are welcome.