Air pollution, physical activity and ischaemic heart disease: a prospective cohort study of interaction effects.

ABSTRACT:

Objective

To assess a possible interaction effect between physical activity and air pollution on first incidence of ischaemic heart disease (IHD).

Design

Prospective cohort study.

Setting

Umeå, Northern Sweden.

Participants

We studied 34 748 adult participants of Västerbotten Intervention Programme cohort from 1990 to January 2014. Annual particulate matter concentrations (PM_2.5 and PM₁₀) at the participants' residential addresses were modelled and a questionnaire on frequency of exercise and active commuting was completed at baseline. Cox proportional hazards modelling was used to estimate (1) association with physical activity at different levels of air pollution and (2) the association with particulate matter at different levels of phys

SUBMITTER: Raza W 

PROVIDER: S-EPMC8051414 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature