Related Experiment Video
Updated: Mar 14, 2026
04:03
Author Spotlight: Evaluating the Therapeutic Efficacy of Moving Cupping Along Meridians for Acute Exacerbation of COPD
Published on: September 27, 2024
1.6K
Influence of country-level differences on COPD prevalence
Shawn D Aaron1, Andrea S Gershon2, Yuan Gao1
1Ottawa Hospital Research Institute, University of Ottawa, Ottawa.
International Journal of Chronic Obstructive Pulmonary Disease
|October 5, 2016
Summary
Chronic obstructive pulmonary disease (COPD) prevalence varies globally. Country-level factors, beyond individual risks like smoking, significantly influence COPD rates, though some key drivers remain unknown.
Area of Science:
- Epidemiology
- Global Health
- Respiratory Medicine
Background:
- Chronic obstructive pulmonary disease (COPD) prevalence is understood to differ across nations.
- Ecological studies are valuable for examining population-level health trends and risk factors.
Purpose of the Study:
- To investigate the influence of country-level risk factors on the global prevalence of COPD.
- To assess how variations in national socioeconomic development and environmental factors correlate with COPD rates.
Main Methods:
- A systematic review and meta-analysis of 80 English-language articles published between 2003 and 2014.
- Analysis of 1,583 COPD prevalence measures from representative national or subnational populations in 112 districts across 41 countries.
- Stepwise binomial regression was employed to identify associations between study- and country-level factors and COPD prevalence.
Main Results:
- Significant regional variations in COPD prevalence were observed, with lower rates in Australia/New Zealand and the Mediterranean, and higher rates in Latin America compared to North America, Southeast Asia, and Northern Europe.
- While established risk factors (sex, age, smoking) explained 64% of COPD prevalence variability, country-level factors increased explanatory power to 72%.
- High elevation above sea level emerged as a protective factor against COPD, while socioeconomic development showed mixed associations.
Conclusions:
- COPD prevalence exhibits significant geographical variation, even after accounting for individual risk factors.
- Further research is crucial to identify the primary country-level risk factors driving the global COPD epidemic.
Related Concept Videos
01:20Chronic Obstructive Pulmonary Disease-I: Introduction
4.0K
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.
4.0K
01:20COPD: Pathogenesis and Clinical Features
2.1K
Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
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...
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...
2.1K
01:24Chronic Obstructive Pulmonary Disease
2.9K
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...
2.9K
01:27Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
3.3K
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
3.3K
01:29Bias in Epidemiological Studies
1.5K
Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:
1.5K
01:18Factors Affecting Illness
5.6K
When a person's physical, emotional, intellectual, social development or spiritual functioning is compromised, this deviation from a healthy normal state is called illness. Illness creates stress that in turn harms individuals. Irritation, anger, denial, hopelessness, and fear are behavioral and emotional changes an individual experiences in the phases of illness. A variety of factors influence a person's health and well-being.
For instance, risk factors are connected to illness,...
For instance, risk factors are connected to illness,...
5.6K