Electronic Cigarette Use and Quitting in Youth

October 27, 2016 updated by: Dr. Wang Man-Ping, The University of Hong Kong

A Pilot Study on Electronic Cigarette Use and Their Impact on Smoking and Quitting in Youth

A mixed method (longitudinal, trajectory and qualitative studies) to provide comprehensive evidence on the impact of e-cigarette use on smoking and quitting among smoking youth in Hong Kong.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Subjects are from a cohort of Youth Quitline callers and smoking youth (N=200) in Hong Kong. The longitudinal study will investigate the effects of baseline e-cigarette use on quitting (including relapse), nicotine addiction and intention to smoke at 12-month telephone follow-up. A qualitative study will be conducted on 10 ex- and 10 current smokers to supplement and facilitate interpretation of the quantitative findings.

Study Type

Observational

Enrollment (Actual)

189

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Hong Kong
      • Hong Kong, Hong Kong
        • Youth Quitline, School of Nursing, The University of Hong Kong

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

No older than 25 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Youth in Hong Kong

Description

Inclusion Criteria:

  1. Ethnic Chinese
  2. Cantonese speakers
  3. Smoke at least 1 cigarette in the past 30 days

Exclusion Criteria:

  1. Psychologically or physically unable to communicate
  2. Undergoing other smoking cessation programme

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Electronic cigarette ever user
Youth Quitline callers who reported ever use of e-cigarette at baseline.
Device: Electronic cigarette
Electronic cigarettes are devices that do not burn or use tobacco leaves but instead vaporize a solution the user then inhales. The device contains an electronic vaporization system, rechargeable batteries, electronic controls and cartridges of the liquid is vaporized.
Other Names:
  • Electronic nicotine delivery system
Electronic cigarette never user
Youth Quitline callers who reported never use of e-cigarette at baseline.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
7-day point prevalence abstinence assessed in the telephone follow-up survey
Time Frame: 12 months after baseline survey

Self-reported 7-day point prevalence abstinence (PPA) is a validated, commonly used measure of smoking cessation. Subjects who reports no smoking in the preceding 7 days at the time of 12-month survey in the follow-up are regarded as quitters.

This measure has serval advantages compared to continuous abstinence. First, it can include smokers who take delayed action and quit. It also allows relapses to occur in the follow up period, without classifying smokers as permanent failure. Third, it does not rely on recall of past events happened long ago.
12 months after baseline survey

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Quit attempts assessed in the telephone follow-up survey
Time Frame: 12 months after baseline survey
Smokers report how many times they try to abstain from cigarette for more than 24 hours in the whole follow-up period
12 months after baseline survey
Intention to quit assessed in the telephone follow-up survey
Time Frame: 12 months after baseline survey
Smokers report whether they intend to quit smoking at the time of 12-month survey in the follow-up
12 months after baseline survey

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

The University of Hong Kong

Investigators

  • Principal Investigator: Man Ping Wang, PhD, mpwang@hku.hk

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2015

Primary Completion (Actual)

June 1, 2016

Study Completion (Actual)

August 1, 2016

Study Registration Dates

First Submitted

May 19, 2016

First Submitted That Met QC Criteria

October 27, 2016

First Posted (Estimate)

October 31, 2016

Study Record Updates

Last Update Posted (Estimate)

October 31, 2016

Last Update Submitted That Met QC Criteria

October 27, 2016

Last Verified

October 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • EC use and quitting in youth

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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