Factors That Impact the Relationship Between Pulmonary Status and Actual Electronic Cigarette Use

Completed

• Conditions: Electronic Cigarette Use; Pulmonary Disease
• Interventions: Other: health-related telephone surveys

• Registration Number: NCT04135404
• Lead Sponsor: University of Alabama at Birmingham

Brief Summary

Secondary data analysis will be performed as our approach to complete the study. A nationally representative dataset (BRFSS, 2017) will be used to answer the above hypotheses.

Detailed Description

Secondary data analysis will be performed as our approach to complete the study. A nationally representative dataset (BRFSS, 2017) will be used to answer our research questions. Our rationale is that there is insufficient research assessing the relationship between pulmonary status and e-cigarette use and that some factors, such as behavioral variables or psychosocial variables, might influence this relationship. Our expectation is that this study will deepen the understanding of the relationship between pulmonary status and e-cigarette use among U.S. adults. This study will cast light on different factors that influence the relationship between pulmonary status and e-cigarette use. Also, the following secondary outcomes will be tested: Severity of COPD symptoms (COPD group) moderate the relationship between pulmonary status (COPD status) and e-cigarette use, and Severity of asthma symptoms (asthma group) moderate the relationship between pulmonary status (asthma status) and e-cigarette use.

Basic Information
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Recruitment & Eligibility
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Study & Design

Study Timeline

• Study Start: 2017-01-01
• Primary Completion: 2017-12-30
• Study Completion: 2017-12-30
• Status Verified: 2019-10
• Study First Submitted: 2019-10-18
• Study First Submitted QC: 2019-10-21
• Last Update Submitted: 2019-10-21
• Study First Posted: 2019-10-22
• Last Update Posted: 2019-10-22

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 400000

Inclusion Criteria

Group 1: Pulmonary

• Are 18 years of age or older.
• Reported any of the pulmonary disease (Asthma, COPD). Group 2: Control Group
• Are 18 years of age or older.
• Free from any pulmonary disease (asthma, COPD).

Exclusion Criteria Group 1: Pulmonary

• Are younger than 18 years of age.
• Did not report any of the pulmonary disease (Asthma, COPD). Group 2: Control Group
• Are younger than 18 years of age.
• Reported any pulmonary disease (asthma, COPD

The Behavioral Risk Factor Surveillance System (BRFSS) is health-related telephone surveys that collect state data about United States residents regarding their health-related risk behaviors, chronic health conditions, and use of preventive services. This database contains data to help determine e-cigarette use in individuals with pulmonary disease in the US which little is known.

Note: The Behavioral Risk Factor Surveillance System (BRFSS) is a public dataset, and the data is publicly available online at (https://www.cdc.gov/brfss/annual_data/annual_2017.html)

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Exclusion Criteria

Not provided

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Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Pulmonary Group	health-related telephone surveys	This project will be achieved by using a publicly available data set (Behavioral Risk Factor Surveillance System, 2017). The subjects from the data set will be selected on their pulmonary status; pulmonary group are those who have reported any pulmonary diseases and they will be included in this study as pulmonary group.
Control Group	health-related telephone surveys	This project will be achieved by using a publicly available data set (Behavioral Risk Factor Surveillance System, 2017). The subjects from the data set will be selected on their pulmonary status; The control group are subjects without pulmonary diseases and they will be included as (control group).

Primary Outcome Measures

Name	Time	Method
E-cigarette use (Dependent Variable)	1 year	This survey item asks participants if they ever used an e-cigarette or other electronic "vaping" product, even just one time, in their entire life (Yes/No).
Poor mental health mediate the relationship between pulmonary status (pulmonary vs. non-pulmonary) and e-cigarette use.	1 year	This question assesses mental health, including stress, depression, and emotional problems, by asking participants the number of days out of the last 30 days that their mental health was not good (continuous variables).
Smoking mediate the relationship between pulmonary status (pulmonary vs. non-pulmonary) and e-cigarette use.	1 year	Smoking: This scale assesses the frequency of smoking cigarettes: 1 = every day, 2 = some days, 3 = not at all.
Alcohol use moderate the relationship between pulmonary status (pulmonary vs. healthy) and e-cigarette use	1 year	This question assesses the number of days in the last 30 days that participants have drunk alcohol (continuous variables).
(healthy days (health-related quality of life) mediate the relationship between pulmonary status (pulmonary vs. non-pulmonary) and e-cigarette use.	1 year	In reference to healthy days, these questions assess health-related quality of life, which is going to be assessed by asking questions concerning the number of days out of the last 30 days that the participants were physically or mentally ill (continuous variables).

Secondary Outcome Measures

Name	Time	Method
asthma symptoms (asthmatic group) moderate the relationship between pulmonary status (COPD, asthma) and e-cigarette use.	1 year	Several questions determine the severity of asthma symptoms. The first question will assess the asthma symptoms by asking the participants the number of days they were unable to work or carry out their usual activities because of their asthma symptoms (continuous variables). The second question will assess coughing, wheezing, shortness of breath, chest tightness and phlegm production by asking participants the number of days out of the last 30 that they have any of the previous symptoms (continuous variables). The final question will symptoms of asthma make it difficult for the participants to stay asleep (continuous variables).
Marijuana use moderate the relationship between pulmonary status (pulmonary vs. healthy) and e-cigarette use.	1 year	This question assesses the number of days in the last 30 days that participants have used marijuana or hashish (continuous variables).
Severity of COPD symptoms (COPD group) moderate the relationship between pulmonary status (COPD, asthma) and e-cigarette use	1 year	Three questions are posed to assess the severity of COPD symptoms. The responses of these questions are combined to form a composite score. The first question will assess coughing, the second question will assess phlegm production, and the third question will assess shortness of breath. Answers for each of the three questions will be in a yes/no format and will be represented on a scale of 1-3, where 1 is less severe and 3 is more severe.