COPD (chronic obstructive pulmonary disease) definition and facts. Chronic obstructive pulmonary disease (COPD) is a chronic condition in which there is a slow, progressive obstruction of airflow into or out of the lungs. The primary cause of chronic obstructive pulmonary disease is cigarette smoking and/or exposure to tobacco smoke.
â¢ Information about the complaints process should be available in a variety of forms of communication, formats and languages appropriate to the needs of the customer. â¢ Complaints and all supporting documents provided during acomplaint resolution or investigation process should be accepted in a number of different
Your data must meet the following requirements: 1  Dependent variable that is continuous (i.e., interval or ratio level) Note: The paired measurements must be recorded in two separate variables. 2  Related samples/groups (i.e., dependent observations) The subjects in each sample, or group, are the same.