Tobacco Patterns and Risk of Chronic Obstructive Pulmonary Disease: Results From a Cross-Sectional Study
Julia Rey-Brandariz1, Mónica Pérez-Ríos2, Jasjit S Ahluwalia3
1Department of Preventive Medicine and Public Health, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
Archivos De Bronconeumologia
|July 27, 2023
Summary
Chronic Obstructive Pulmonary Disease (COPD) risk escalates with smoking duration, intensity, and total consumption. Quitting smoking significantly reduces COPD risk, potentially returning it to never-smoker levels after 15-25 years.
Area of Science:
- Pulmonology
- Epidemiology
- Public Health
Background:
- Uncertainty exists regarding specific cigarette smoking factors influencing Chronic Obstructive Pulmonary Disease (COPD) risk.
- Identifying these factors is crucial for targeted prevention and intervention strategies.
Purpose of the Study:
- To quantify the association between various smoking parameters and COPD risk.
- Investigate the impact of smoking duration, intensity, lifetime consumption, age of initiation, and abstinence duration on COPD development.
Main Methods:
- An analytical cross-sectional study utilizing data from the EPISCAN-II study (n=9092).
- Participants underwent interviews and post-bronchodilator spirometry.
- COPD defined as post-bronchodilator FEV1/FVC < 70%, analyzed using logistic regression and generalized additive models.
Main Results:
- COPD risk significantly increased with longer smoking duration (≥50 years), higher intensity (≥39 cigarettes/day), and greater lifetime tobacco consumption (>29 pack-years).
- Starting smoking at age 22 or later showed no increased COPD risk (OR 0.9).
- COPD risk decreased with increasing years of smoking abstinence, with the lowest risk observed after 15-25 years.
Conclusions:
- COPD risk is strongly linked to cumulative smoking exposure (duration, intensity, lifetime consumption).
- Age of smoking initiation does not appear to influence COPD risk.
- Smoking cessation is highly effective, with risk potentially normalizing to never-smoker levels after 15-25 years of abstinence.
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