Physical activity among cancer survivors: do neighborhood walkability and metropolitan size play a role?

To examine associations between walkability, metropolitan size, and physical activity (PA) among cancer survivors and explore if the association between walkability and PA would vary across United States metropolitan sizes. This study used data from the 2020 National Health Interview Survey to examine independent associations of walkability and metropolitan size with engaging in moderate-to-vigorous PA (MVPA) and to explore the effect modification of metropolitan size using log-binomial regression. The dependent variable was dichotomized as