Association between annual change in FEV₁ and comorbidities or impulse oscillometry in chronic obstructive pulmonary disease.

ABSTRACT:

Background

Chronic obstructive pulmonary disease (COPD) is characterized by persistent respiratory symptoms and airflow limitation. The decline in forced expiratory volume in one second (FEV₁) is considered to be one of the most important outcome measures for evaluating disease progression. However, the only intervention proven to improve COPD prognosis is smoking cessation. This study therefore investigated the factors associated with annual FEV₁ decline in COPD.

Methods

This retrospective study followed up 65 patients treated for COPD for 5 years: 13 current smokers and 52 former smokers, 25 with pneumonia, 24 with asthma, 18 with cancer, and 17 with cardiovascular disease. The patients were divided into groups based on clinical cutoff parameters of t

SUBMITTER: Sugawara H 

PROVIDER: S-EPMC9080138 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature