Comparison of the Cozart DDS 801 on-site drug test device and gas chromatography/mass spectrometry (GC/MS) confirmation results of cannabis and cocaine in oral fluid specimens

Autor: Eneko Barbería, M. Teresa Marrón, Agustí Mora, Marta Sánchez, Maria Barbal, Amparo Arroyo
Rok vydání: 2013
Předmět:
Zdroj: Australian Journal of Forensic Sciences. 46:272-281
ISSN: 1834-562X
0045-0618
DOI: 10.1080/00450618.2013.832796
Popis: Driving under the influence of drugs (DUID) is a problem around the world. The objective of this study is to assess the reliability of the oral fluid screening device the Cozart DDS 801 by comparing the on-site results with confirmatory gas chromatography/mass spectrometry (GC/MS) oral fluid analysis. The study was carried out in Catalonia (Spain) with a sample of 2180 oral fluid specimens taken from subjects suspected of driving under the influence of drugs of abuse, and collected by police officers during 2009–2010. Statistical parameters of the tests were determined for cannabis and cocaine. The sensitivity, specificity, predictive positive value, predictive negative value, likelihood positive ratio and likelihood negative ratio for cocaine were 92%, 90%, 95%, 85%, 9.44, and 0.09 respectively. Sensitivity, specificity, predictive positive value, predictive negative value, likelihood positive ratio and likelihood negative ratio for cannabis were 87%, 86%, 94%, 73%, 6.15 and 0.6 respectively. Accuracy wa...
Databáze: OpenAIRE