Related Experiment Video
Updated: May 15, 2026
06:07
Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System
Published on: October 22, 2020
Waterpipe smoking and dependence are associated with chronic bronchitis: a case-control study in Lebanon
1Faculty of Pharmacy, Lebanese University Beirut, Lebanon. psalameh@ul.edu.lb
Summary
Waterpipe smoking, especially mixed with cigarettes, significantly increases chronic bronchitis risk in Lebanon. Current waterpipe dependence also emerged as a key risk factor for this respiratory condition.
Area of Science:
- Respiratory Medicine
- Epidemiology
- Public Health
Background:
- The association between waterpipe smoking and chronic bronchitis remains under-researched, particularly in the Eastern Mediterranean region.
- Lebanon has a high prevalence of waterpipe use, necessitating an investigation into its respiratory health impacts.
Purpose of the Study:
- To assess the relationship between waterpipe smoking and chronic bronchitis in Lebanon.
- To identify specific smoking patterns associated with increased chronic bronchitis risk.
Main Methods:
- A case-control study conducted in Beirut between 2009-2010.
- Enrolled 274 chronic bronchitis cases and 559 controls (aged >= 40 years).
- Utilized questionnaires for data collection on demographics, symptoms, smoking habits, and nicotine dependence, followed by statistical analyses including logistic regression.
Main Results:
- Previous waterpipe smoking (OR=6.4), previous mixed smoking (OR=38.03), and current mixed smoking (OR=7.68) were strongly linked to chronic bronchitis (P<0.001).
- Current exclusive waterpipe smoking showed no significant association (OR=1.87).
- Current waterpipe dependence (OR=3.74) and ever waterpipe smoking > 20 WP-years were significantly associated with chronic bronchitis after adjustment (P<0.001).
Conclusions:
- Waterpipe smoking, particularly when combined with cigarette smoking, is a significant risk factor for chronic bronchitis in Lebanon.
- Nicotine dependence from waterpipe use is also associated with an increased risk of developing chronic bronchitis.
Related Concept Videos
01:24Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
01:23Chronic Obstructive Pulmonary Disease I: Introduction
Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
01:20Chronic Obstructive Pulmonary Disease-I: Introduction
Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
01:24Chronic Obstructive Pulmonary Disease
COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
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...
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...
01:23Chronic Obstructive Pulmonary Disease II: Emphysema
Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
01:27Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
Medical History