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Commonly used thresholds for staging FEV 1 have not been evaluated as standalone spirometric predictors of death in older persons. Specifically, the proportion of deaths attributed to a reduced FEV 1 , when staged by commonly used thresholds in L, percent of predicted (% pred), and Z scores, has not been previously reported.

FEV1 as a Standalone Spirometric Predictor and the Attributable Fraction for Death in Older Persons

FEV₁ as a Standalone Spirometric Predictor and the Attributable Fraction for Death in Older Persons