Assessment of cotinine in urine and saliva of smokers, passive smokers, and nonsmokers: Method validation using liquid chromatography and mass spectrometry.

Conclusion: Analysis of variance showed that cotinine levels (urine and saliva) of smokers were significantly higher levels than passive smokers and nonsmokers (P < 0.01). Similarly, passive smokers also had significantly higher cotinine levels (urine and saliva) than nonsmokers (P < 0.001). PMID: 31142905 [PubMed]
Source: Indian Journal of Psychiatry - Category: Psychiatry Tags: Indian J Psychiatry Source Type: research