Chazeron ID, Daval S, Ughetto S, Richard D, Nicolay A, Lemery D, Llorca PM, Coudoré F. GC-MS determined cotinine in an epidemiological study on smoking status at delivery.
Pulm Pharmacol Ther 2007;
21:485-8. [PMID:
18086544 DOI:
10.1016/j.pupt.2007.11.001]
[Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2007] [Revised: 09/22/2007] [Accepted: 11/07/2007] [Indexed: 11/15/2022]
Abstract
The objective of this study was to measure the plasma cotinine levels in pregnant women and their newborns using a gas chromatography-mass spectrometry (GC-MS) method in an epidemiological-delivered population with a wide range of tobacco intakes. Nearly 1000 pregnant women from regional maternity wards (n=1007) were selected for the study. Each patient kept a tobacco diary and underwent a blood test to assess cotinine levels and at the same time that the newborns' cordonal plasma was taken. These values were then cross-checked. Cotinine was estimated using a selected-ion monitoring mode with a 1.5 ng/ml quantification limit. The cotinine levels in mothers and newborns were highly correlated, whatever the mother's smoking status, with a calculated cut-off for cotinine levels in active smokers of 21.5 ng/ml. Finally, the cotinine determined through this GC-MS method offered a sensitive and accurate measure of tobacco exposition of the pregnant women and their babies.
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