Background: Chronic Obstructive Pulmonary Disease (COPD) is currently the fifth leading cause of death in Australia, and there are marked differences in mortality trends between men and women. In this study, we have sought to model and forecast age related changes in COPD mortality over time for men and women separately over the period 2006–2025. Methods: Annual COPD death rates in Australia from 1922 to 2005 for age groups (50–54, 55–59, 60–64, 65–69, 70–74, 75–79, 80–84, 85+) were …