Associations of Fine Particulate Matter and Its Specific Components With Recurrent Stroke and Secondary Morbidity and Mortality

BACKGROUND AND OBJECTIVES: and its specific components with several different clinical progression phases of stroke. METHODS: and its components. We also conducted subgroup analyses to explore potential effect modification. RESULTS: for nonlinearity <0.001). Of interest, patients with good functional outcomes (modified Rankin Scale score ≤3) or mild strokes (NIH Stroke Scale score <5) had a higher risk of recurrence or death, possibly because of increased exposure to outdoor air pollution. DISCUSSION: and its specific components was positively associated with the risk of recurrent stroke, and secondary morbidity and mortality. Exposure assessment relied on residential addresses rather than personal measurements, which should be noted as a limitation.