Can Urinary Cotinine Predict Nicotine Dependence Level in Smokers?

Jung, Hyun-Suk; Kim, Yeol; Son, Jungsik; Jeon, Young-Jee; Seo, Hong-Gwan; Park, So-Hee; Huh, Bong Ryul

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자료유형: 학술저널

저자정보: Jung, Hyun-Suk (Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University College of Medicine) Kim, Yeol (Center for Cancer Prevention and Detection, National Cancer Center) Son, Jungsik (Department of Family Medicine, INHA International Medical Center) Jeon, Young-Jee (Department of Family Medicine, Haeundae Paik Hospital, Inje University School of Medicine) Seo, Hong-Gwan (Center for Cancer Prevention and Detection, National Cancer Center) Park, So-Hee (The Korea Central Cancer Registry, National Cancer Center) Huh, Bong Ryul (Center for Cancer Prevention and Detection, National Cancer Center)

저널정보: 아시아태평양암예방학회 Asian Pacific journal of cancer prevention : APJCP Asian Pacific journal of cancer prevention : APJCP 제13권 제11호

발행연도: 2012.1

수록면: 5,483 - 5,488 (6page)

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Background: Although nicotine dependence plays a role as a main barrier for smoking cessation, there is still a lack of solid evidence on the validity of biomarkers to determine nicotine dependence in clinical settings. This study aimed to investigate whether urinary cotinine levels could reflect the severity of nicotine dependence in active smokers. Materials and Methods: Data regarding general characteristics and smoking status was collected using a self-administered smoking questionnaire. The Fagerstr$\ddot{o}$m test for nicotine dependence (FTND) was used to determine nicotine dependence of the participants, and a total of 381 participants were classified into 3 groups of nicotine dependence: low (n=205, 53.8%), moderate (n=127, 33.3%), and high dependence groups (n=49, 12.9%). Stepwise multiple linear regression model and receiver operating characteristic (ROC) curves analyses were used to determine the validity of urinary cotinine for high nicotine dependence. Results: In correlation analysis, urinary cotinine levels increased with FTND score (r=0.567, P<0.001). ROC curves analysis showed that urinary cotinine levels predicted the high-dependence group with reasonable accuracy (optimal cut-off value=1,000 ng/mL; AUC=0.82; P<0.001; sensitivity=71.4%; specificity=74.4%). In stepwise multiple regression analysis, the total smoking period (${\beta}$=0.042, P=0.001) and urinary cotinine levels (${\beta}$=0.234, P<0.001) were positively associated with nicotine dependence, whereas an inverse association was observed between highest education levels (>16 years) and nicotine dependence (${\beta}$=-0.573, P=0.034). Conclusions: The results of this study support the validity of using urinary cotinine levels for assessment of nicotine dependence in active smokers.

#Cotinine #biological markers #smoking #tobacco use disorder

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Jung, Hyun-Suk

소속기관 Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University College of Medicine