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Mouth Level Nicotine in a Clinical Setting versus Non-clinical Setting

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Objective: Our objective was to improve understanding of the differences in cigarette use behavior and exposure for participants smoking their own brand of cigarettes in a clinical setting versus smoking under natural conditions. Methods: Adult daily smokers (N = 163) attended 2 clinic visits where they smoked through a CReSS™ topography device. Participants collected cigarette butts smoked without a CReSS™ device and completed a diary of location, mood, and activity for each cigarette smoked. Cigarette butts were used to determine mouth level nicotine (MLN). Least square means (LSMs) were estimated from mixed effects models. Results: The LSM for MLN was higher among participants who smoked cigarettes in the clinical setting. LSM MLN was 1.589 [95% CI: 1.312, 1.924] mg/cig for cigarettes smoked in the clinic and 1.087 [95% CI: 0.902, 1.310] mg/cig for cigarettes smoked outside of the clinic; we found differences between race and sex. Conclusions: Our results show nicotine intake and some smoking behavior are significantly biased upwards when studied in a clinical setting. Therefore, tobacco smoke expo- sure determinations in a clinical setting may not be completely generalizable to smoke exposure determinations in naturalistic settings.
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Document Type: Research Article

Publication date: May 1, 2019

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  • Tobacco Regulatory Science (Electronic ISSN 2333-9748) is a rigorously peer-reviewed online scientific journal for the dissemination of research relevant to the regulation of tobacco products. The journal content includes a broad array of research domains, including chemistry, biology, behavior, community, and population-level surveillance and epidemiology, as well as knowledge syntheses (eg, meta-analyses or state-of-the-art reviews) and analytic modeling. All articles describe the policy relevance of the research outcomes. Given the global nature of tobacco regulation, particularly as a result of international and national policies, Tobacco Regulatory Science publishes high quality research that is relevant to global regulatory needs and requirements. Tobacco Regulatory Science is published electronically 6 times per year.
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