Association of residential air pollution, noise, and greenspace with initial ischemic stroke severity.

Background And Purpose: A number of environmental risk factors of acute ischemic stroke have been identified, but few studies have evaluated the influence of the outdoor environment on stroke severity. We assessed the association of residential ambient fine particulate matter air pollution (PM), noise, and surrounding greenspace with initial stroke severity.

Methods: We obtained data on patients hospitalized with acute ischemic stroke from a hospital-based prospective stroke register (2005-2014) in Barcelona.

Short-term exposure to traffic-related air pollution and ischemic stroke onset in Barcelona, Spain.

Objective: To assess the relationship between short-term exposure to outdoor ambient air pollutants (fine particulate matter [PM] and black carbon [BC]), ischemic stroke (IS) and its different subtypes, and the potential modifying effect of neighborhood greenspace and noise.

Methods: This time-stratified case-crossover study was based on IS and transient ischemic attacks (TIA) recorded in a hospital-based prospective stroke register (BASICMAR 2005-2014) in Barcelona (Catalonia, Spain). Daily and hourly pollutant concentrations and meteorological data were obtained from monitoring stations in the city.