Spirometry testing in patients with COPD or those at high-risk for COPD (ages 50-74 years)
Individuals who had at least one spirometry (numerator), among Individuals aged 50-74 years diagnosed with COPD or defined at high-risk for COPD (denominator)
COPD (Chronic Obstructive Pulmonary Disease) is a common respiratory disease characterized by persistent respiratory symptoms and airflow limitation that is due to airway and/or alveolar abnormalities. According to WHO data, in 2015 COPD was the fourth leading cause of death worldwide . Despite being the gold standard for the diagnosis and assessment of COPD, spirometry testing is underused. Earlier diagnosis using spirometry testing supports a treatment plan that may slow the progression of symptoms and decrease the number of exacerbations .
Individuals in the denominator who had at least one spirometry ever since 01/01/2011
Individuals aged 50-74 years diagnosed with COPD or defined at high-risk for COPD ever since 01/01/2012
Individuals diagnosed with COPD are defined by a new diagnosis of COPD, chronic bronchitis, pulmonary emphysema or chronic bronchiectasis or by purchasing COPD specific medications. Individuals at high risk for COPD are defined as persons with a history of tobacco smoking that were either diagnosed with asthma or purchased medications for chronic respiratory diseases.
 J. B. Soriano et al., “Global, regional, and national deaths, prevalence, disability, adjusted life years, and years lived with disability for chronic obstructive pulmonary disease and asthma: a systematic analysis for the Global Burden of Disease Study 2015,” Lancet Respir. Med., 5(9):691–706.
 Global Initiative for Chronic Obstructive Lung Disease. 2017. “Global Strategy for the Diagnosis, and Prevention of Chronic Obstructive Pulmonary Disease.” Available: