3 Topic Commentaries

COPD Severity Tied to Life Expectancy

• 

  Paul D. Scanlon, MD

  Pulmonary and Critical Care Medicine

  •

  Mayo Clinic

  If you quit smoking, lung functioning improves a little bit and then stabilizes so that … you can live to a ripe old age with only mild impairment.

  Source
• 

  Chin-Chung Shu, MD, PhD

  Pulmonology / Thoracic Medicine

  •

  National Taiwan University Hospital

  Regarding the association between death and severity of COPD, the HRs for all-cause mortality increased with COPD stage, from stage 1 (HR: 1.15) to stage 2 (HR: 1.40), stage 3 (1.69) and stage 4 (HR: 2.44).

  Source
• 

  David M. Mannino, MD

  Pulmonary Medicine / Epidemiology

  •

  University of Kentucky College of Medicine

  At age 65, the reductions in male life expectancy for stage 1, stage 2, and stages 3 or 4 disease in current smokers are 0.3 years, 2.2 years, and 5.8 years.

  Source