Prevalence of airway obstruction in the elderly: results from a cross-sectional spirometric study of nine age cohorts between the ages of 60 and 93 years.
AIMS: To study the prevalence of airway obstruction according to age, gender and smoking habits using spirometry, and to compare the results using different definitions, classifications and spirometric reference values in an elderly population. METHODS: A random sample of 2046 men and women in nine age cohorts (aged 60, 66, 72, 78, 81, 84, 87, 90 and 93 years) were drawn from the Swedish municipal
