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Updated: Oct 9, 2025

Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System
Published on: May 24, 2017
E-Cigarette Dependence in Youth.
Martha Pienkowski1, Michael Chaiton1,2, Jolene Dubray1
1Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.
This study validated e-cigarette dependence measures for youth. A simple self-perceived measure is effective for assessing nicotine dependence in young people.
Area of Science:
- Public Health
- Adolescent Health
- Addiction Science
Background:
- Nicotine dependence from e-cigarette use is a growing concern in youth.
- Limited research exists on the validity of e-cigarette dependence measures for adolescents.
Purpose of the Study:
- To investigate and validate various e-cigarette dependence measures for youth populations.
- To assess the convergent and concurrent validity of different assessment tools.
Main Methods:
- A cross-sectional online survey of 1,205 Canadian youth (aged 16-24) who vape monthly.
- Assessed dependence using the Penn State Electronic Cigarette Dependence Index (PS-ECDI), E-Cigarette Dependence Scale (EDS), a self-perceived question, and time to first vape.
- Evaluated internal consistency, convergent validity, and concurrent validity.
Main Results:
- All measures (PS-ECDI, EDS, self-perceived, time to first vape) showed good internal consistency and validity.
- The self-perceived measure and PS-ECDI were effective for monthly vaping prediction.
- The self-perceived measure was superior for predicting daily vaping frequency.
Conclusions:
- All evaluated measures are valid for assessing e-cigarette dependence in youth.
- A single self-perceived question is a practical and effective tool, especially when time is limited or respondent fatigue is a concern.
- This finding aids in better understanding and addressing youth nicotine dependence from vaping.
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