Information on age, gender, socio-d

Information on age, gender, socio-demographic characteristics,
and medical histories were collected by
computer-aided personal interviews. The definition of
cardiopulmonary disorders was based on self-reported
physician’s diagnosis, use of specific medication (ATC
code), electro- or echocardiographical pathological findings,
and lung function abnormalities measured by
spirometry and bodyplethysmography. Smoking status
(current, former, or never-smokers) and physical