The relationship between preserved ratio impaired spirometry and mortality in the myocardial infarction survivors: a population-based cohort study.

Introduction: Preserved ratio impaired spirometry (PRISm) is a subtype of pulmonary function abnormality which is characterized by a proportional reduction in non-obstructive expiratory lung volume. Currently, no studies have shown a relationship between PRISm and mortality in myocardial infarction (MI) survivors.

Methods: We used cohort data from U.