The assessment of patients
FEVLow, COPD
CHRONIC OBSTRUCTIVE PULMONARY DISEASE, COPD, CHRONIC OBSTRUCTIVE LUNG DISEASE
The formula calculating the predicted FEVGOLD stages of COPD patientsGOLD, Global Initiative for Chronic Obstructive Lung Disease; COPD, chronic obstructive pulmonary disease; CI, confidence interval.GOLD stage I (mild COPD): FEVLow altitudes vs. high altitudes.Three patients older than 81 years were excluded.Bold values denote significant 