Is 24h nicotine equivalents a surrogate for smoke exposure based on its relationship with other biomarkers of exposure?
- 17 February 2011
- journal article
- Published by Informa UK Limited in Biomarkers
- Vol. 16 (2), 144-154
- https://doi.org/10.3109/1354750x.2010.536257
Abstract
Nicotine and its 5 major metabolites (Nicotine equivalents, NE) may serve as a surrogate biomarker for smoke exposure. Objective: To investigate the relationship between nicotine equivalents (NE) and biomarkers of exposure (BOE) to cigarette smoke. Methods: Data from nine controlled studies in 916 adult smokers were used. BOEs to nicotine, NNK, pyrene, acrolein, benzene, 1,3-butadiene and CO were used. Results: Among all the factors investigated (NE, cigarette type, age, gender, BMI and study), NE was the most statistically significant factor for all biomarker relationships. Weak to moderate relationships (0.32 ≤ R2 ≤ 0.65) were found between NE and the BOEs. Conclusions: Based on the relationships with BOEs, NE may be considered as a surrogate biomarker of total cigarette smoke exposure.Keywords
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