Clinical features and associated factors of impaired ventilatory efficiency: findings from the ECOPD study in China.

ABSTRACT:

Background

Impaired ventilatory efficiency during exercise is a predictor of mortality in chronic obstructive pulmonary disease. However, little is known about the clinical features and associated factors of impaired ventilatory efficiency in China.

Methods

We conducted a cross-sectional community-based study in China and collected demographic and clinical information, cardiopulmonary exercise testing, spirometry, and CT data. Impaired ventilatory efficiency was defined by a nadir ventilatory equivalent for CO₂ production above the upper limit of normal. Multivariable linear and logistic regression models were used to explore the clinical features and associated factors of impaired ventilatory efficiency.

Results

The final analyses included 941 subjects, 70

SUBMITTER: Deng Z 

PROVIDER: S-EPMC11261676 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature