Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
The main hypothesis is that persons that smoke or smoked tobacco and marihuana have worsen lung function as compared with persons that only smoke or smoked tobacco.
We will follow persons with already diagnosed COPD (chronic bronchitis and/or emphysema). Obtain their smoking history: tobacco and marihuana and review their pulmonary function study results. Then we are planning to compare both groups.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| COPD tobacco and/or marihuana users | COPD patients with history of tobacco and/or marihuana smoking. |
Not provided
| Measure | Description | Time Frame |
|---|---|---|
| Obstructive limitation in pulmonary function test | Comparison on the severity of obstruction among both groups | 1 year |
| Measure | Description | Time Frame |
|---|---|---|
| Decreased diffusion capacity for carbon monoxide | Comparison on the severity of decreased DLco among groups. | 1 year |
| Airtrapping | Comparison on the severity of air-trapping by pulmonary function testing among groups. |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
COPD patients recruited in pulmonary clinic.
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Rosa M Estrada-Y-Martin, MD | The University of Texas Health Science Center, Houston | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Lyndon B Johnson General Hospital | Houston | Texas | 77026 | United States | ||
| The University of Texas- Health Science Center at Houston |
Not provided
| ID | Term |
|---|---|
| D029424 | Pulmonary Disease, Chronic Obstructive |
| D008385 | Marijuana Smoking |
| ID | Term |
|---|---|
| D008173 | Lung Diseases, Obstructive |
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
| D002908 | Chronic Disease |
Not provided
Not provided
Not provided
Not provided
Not provided
| 1 year |
| Houston |
| Texas |
| 77030 |
| United States |
| D020969 |
| Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D000074609 | Marijuana Use |
| D001519 | Behavior |
| D000073847 | Smoking, Non-Tobacco Products |
| D012907 | Smoking |