Association of forced expiratory volume in 0.5 seconds/forced vital capacity ratio with all-cause mortality in adults: a cohort study.

ABSTRACT:

Background

Current lung function indicators are insufficient for identifying clinical characteristics and early lesions in chronic respiratory diseases (CRDs). Consequently, there is a necessity to explore new lung function indicators related to respiratory prognosis. Previous studies have demonstrated that the forced expiratory volume in 0.5 seconds (FEV_0.5)/forced vital capacity (FVC) ratio plays a significant role in lung function assessment in infants and preschoolers. No studies have explored the same in adults. In this study, we aimed to explore the association between FEV_0.5/FVC and respiratory health outcomes in adults.

Methods

The participants were recruited from the National Health and Nutrition Examination Survey (NHANES; 1988-1994 and 2007-2

SUBMITTER: Peng R 

PROVIDER: S-EPMC12688529 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature