Chronic Obstructive Pulmonary Disease With Asthma-Like Features in the General Population in China.

ABSTRACT:

Background

Patients with features of both asthma and chronic obstructive pulmonary disease (COPD) are seen commonly in the clinic but less is known in the general population. We investigated the prevalence and the heterogeneity of COPD with concomitant features of asthma in Chinese adult population.

Methods

COPD was defined as post-bronchodilator ratio of forced expiratory volume in 1s (FEV₁) to forced vital capacity of less than the lower limits of normal. COPD with concomitant features of asthma was defined as either COPD with asthma diagnosed by self-reported physician-diagnosis or by presence of current wheeze, or as COPD with high bronchodilator response (HBR) defined as an increase in FEV₁ >15% and >400 ml after bronchodilator.

Results

COPD

SUBMITTER: Huang K 

PROVIDER: S-EPMC9120624 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature