Collected Dataset / CanCOLD_Healthy_controls_18months

The population is composed of non-institutionalized adults, men and women, aged 40 and more, with a normal post bronchodilator spirometry, who are never smokers and without respiratory diseases.

Questionnaires were used to collect information on sociodemographic, smoking history and work exposure, consequences of health problems for employment, symptoms and disability; global chest symptoms, capacity of daily living, medication, co-morbid conditions, lifestyle such as dietary habits and physical activities and health status and psychosocial characteristics such as anxiety and depression. Spirometry (pre-and post post bronchodilator test) and a six minute walk test were completed. A blood sample was collected as well. Health care utilization (including use of medications), health outcomes and mortality information was collected using provincial health care administrative and vital statistic databases.