Composite variables in COPD and update of prevalence worldwide

Symposium
Chairs: C. Janson (Uppsala, Sweden), H. Pinnock (Edinburgh, United Kingdom)
Aims: This symposium will bring a broader knowledge about composite variables such as the BODE, ADO and DOSE indexes and their utility in epidemiological research and clinical practice, including primary care. An additional aim is to present an updated prevalence of COPD worldwide.

Underdiagnosis of COPD in the Latin American PLATINO study and worldwide M. Montes De Oca (Caracas, Venezuela)
The BODE index and other composite variables in COPD B.R. Celli (Boston, United States of America)
Composite variables and monitoring COPD in primary care B. Stallberg (Uppsala, Sweden)