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Cited by 304

The DOI matches its Crossref record; 53 of the 53 references it cites were found in a registry or an index.

Overview of Cotinine Cutoff Values for Smoking Status Classification

Open access
Kim, Sungroul·2016·International Journal of Environmental Research and Public Health

Abstract

While cotinine is commonly used as a biomarker to validate self-reported smoking status, the selection of an optimal cotinine cutoff value for distinguishing true smokers from true nonsmokers shows a lack of standardization among studies. This review describes how the cutoff values have been derived, and explains the issues involved in the generalization of a cutoff value. In this study, we conducted an English-language literature search in PubMed using the keywords “cotinine” and “cutoff” or “self-reported” and “smoking status” and “validation” for the years 1985–2014. We obtained 104 articles, 32 of which provided (1) sensitivity and specificity of a cutoff value and (2) determination methods for the given cutoff value. We found that the saliva cotinine cutoff value range of 10–25 ng/mL, serum and urine cotinine cutoff of 10–20 ng/mL and 50–200 ng/mL, respectively, have been commonly used to validate self-reported smoking status using a 2 × 2 table or a receiver operating characteristics (ROC) curve. We also found that recent large population-based studies in the U.S. and UK reported lower cutoff values for cotinine in serum (3 ng/mL) and saliva (12 ng/mL), compared to the traditionally accepted ones (15 and 14 ng/mg, respectively).

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Metadata

Authors
Kim, S.
Venue
International Journal of Environmental Research and Public Health
Publisher
MDPI AG
Published
2016-12-14
Volume
13
Issue
12
Pages
1236
ISSN
1660-4601 (ISSN-L)
OpenAlex
W2564037959
Cited by
304
References
53
FWCI
16.43
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Overview of Cotinine Cutoff Values for Smoking Status Classification. https://app.cochat.ai/papers/10.3390/ijerph13121236
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Kim, S. (2016). Overview of Cotinine Cutoff Values for Smoking Status Classification. International Journal of Environmental Research and Public Health. https://doi.org/10.3390/ijerph13121236

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