Related Experiment Video
Updated: Jul 19, 2026

Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease
Published on: August 24, 2019
Developing COPD: a 25 year follow up study of the general population
A Løkke1, P Lange, H Scharling
1Department of Cardiology and Respiratory Medicine, 253 Hvidovre Hospital, Kettegård Alle 30, DK-2650 Hvidovre, Denmark.
Continuous smoking significantly increases the 25-year risk of developing chronic obstructive pulmonary disease (COPD) to at least 25%. Early smoking cessation substantially reduces this risk in both men and women.
Area of Science:
- Pulmonary Medicine
- Epidemiology
Background:
- Previous studies on smoking and chronic obstructive pulmonary disease (COPD) risk were limited to 10 years.
- Long-term absolute risk of COPD development in smokers versus non-smokers remained unclear.
Purpose of the Study:
- To determine the 25-year absolute risk of developing COPD in men and women.
- To assess the impact of smoking on long-term COPD incidence.
Main Methods:
- A 25-year prospective follow-up of 8045 adults aged 30-60 with normal baseline lung function.
- Regular lung function measurements and analysis of COPD-related mortality.
Main Results:
- The 25-year incidence of moderate and severe COPD was 20.7% and 3.6%, respectively.
- Continuous smokers had a significantly higher risk compared to never smokers.
- Smoking cessation, particularly early cessation, markedly reduced COPD risk.
Conclusions:
- The absolute risk of developing COPD for continuous smokers over 25 years is at least 25%.
- This long-term risk is higher than previously estimated.
- Smoking cessation is a critical factor in mitigating COPD development.
Related Concept Videos
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
Medical History
Chronic Obstructive Pulmonary Disease I: Introduction
Chronic Obstructive Pulmonary Disease-I: Introduction
Chronic Obstructive Pulmonary Disease
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
COPD: Pathogenesis and Clinical Features
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
COPD: Management Using Bronchodilators and Corticosteroids