Prevalence of respiratory symptoms related to chronic obstructive pulmonary disease and asthma among middle aged and older adults

Abstract

OBJECTIVE: The aim of this study was to assess the prevalence of chronic obstructive pulmonary disease in middle aged and older adults. METHODOLOGY: A random sample of 7,005 adults aged between 45 and 69 years was drawn from electoral rolls for Melbourne, Victoria, Australia. A postal survey was conducted using the European Community Respiratory Health Survey respiratory screening questionnaire with additional questions on chronic bronchitis and emphysema. Participants were asked to return the survey by reply mail. Non-responders were sent a reminder postcard after 2 weeks, a replacement questionnaire after 4 weeks and then contacted by telephone. RESULTS: Completed questionnaires were retur..