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KMID : 1156220220480040216
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Journal of Environmental Health Sciences
2022 Volume.48 No. 4 p.216 ~ p.226
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Analysis of the Accuracy and Related Factors of Self-Reported Smoking Status according to Urinary Cotinine Concentration in Adolescents: The KoNEHS Cycle (2015~2017)
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Jung Sun-Kyoung
Park Sang-Shin
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Abstract
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Background: The amount of smoking in adolescence increases with a younger age of smoking initiation and affects physical health. To establish and evaluate smoking-related policies, it is important to determine actual smoking status. Validation of self-reported questionnaires can identify the accuracy of the questionnaire data reflecting smoking status.
Objectives: The purpose of this study was to evaluate the validity of self-reported smoking status and identify factors affecting the accuracy of self-reported smoking in South Korean adolescents.
Methods: This study investigated the consistency between cotinine concentrations and self-reported questionnaire data through the analysis of urine samples collected from 922 adolescents aged 13~18 among the participants of Cycle 3 of the Korean National Environmental Health Survey. Smoking status was classified using the cotinine cut-off point of 39.85 μg/L in adolescents, and factors affecting the accuracy were analyzed through multiple logistic regression analysis.
Results: The smoking rates according to the self-reported questionnaire and cut-off point-based cotinine concentrations among adolescents were 3.1% and 5.1%, respectively. The results found 97.1% consistency between self-reported smokers and smokers according to cotinine concentration. Factors affecting the discrepancy showed a significant relationship, including gender, secondhand smoke, and use of e-cigarettes.
Conclusions: The results can be used as basic data to establish a smoking policy for adolescents through continuous monitoring and improvement of questionnaire items of factors affecting the discrepancy.
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KEYWORD
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Accuracy, adolescent, cotinine, self-report, smoking
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