New Spirometry Indices for Detecting Mild Airflow Obstruction

Airflow Limitation and Spirometry

The relationship between different diet quality indices and severity of airflow obstruction among COPD patients

Background: Chronic obstructive pulmonary disease (COPD) is a major public health problem worldwide. Smoking is the number one cause of COPD; however, genetic, environmental and dietary factors contribute to the etiology of this disease. In this study, we assessed the association between three diet quality indices -the Healthy Eating Index-2005 (HEI-2005), the Healthy Eating Index-2010 (HEI-201...

Defining airflow obstruction.

The authors of the article published recently in the European Respiratory Journal on the prevalence and correlates of airflow obstruction in >317 000 never-smoking Chinese subjects concluded that they found inconsistent associations with exposures to household air pollution and went on to outline what future work needed to be done [1]. In the first instance, they should present table 5 having r...

Defining airflow obstruction.

Using a very large number of predominantly Chinese nonsmoking females aged 30–79 years, SMITH et al. [1] studied the relationship between airflow obstruction, household air pollution, household income, educational level and prior tuberculosis. They defined airflow obstruction as a ratio of forced expiratory volume in 1 s (FEV1) to forced vital capacity (FVC) of <0.7 or <5th percentile, and grad...

“Mild” COPD: What Spirometry Conceals!