Performance evaluation of the DrugWipe® 5/5+ on-site oral fluid screening device.

International Journal of Legal Medicine
Anna PehrssonPirjo Lillsunde

Abstract

This study presents a retrospective performance evaluation of an on-site oral fluid drug screening device DrugWipe® 5/5+ (Securetec). The results obtained by the device were compared with gas chromatography-mass spectrometry confirmation analysis results in whole blood. Data used in the comparison were based on 1,807 real cases in which the Finnish police had conducted an on-site drug test on persons suspected of driving under the influence of drugs. The present data cover only cases wherein the DrugWipe device has shown a positive result for at least one substance. The data were compiled from the databases of Alcohol and Drug Analytics Unit at the National Institute for Health and Welfare. The performance of the DrugWipe was evaluated for its relevant drug groups: amphetamines, cannabis, opiates, and cocaine. The evaluation was carried out by calculating the sensitivity, specificity, and accuracy as well as the positive and negative predictive values. These calculations were based on the classification of the results as true positives, false positives, true negatives, and false negatives. Additionally, the demographics of the cases and analytical findings in whole blood are discussed. According to this study, the DrugWipe devi...Continue Reading

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Citations

Jun 16, 2011·Analytical and Bioanalytical Chemistry·Sabina Strano-RossiMarcello Chiarotti
Apr 5, 2014·Forensic Science International : Synergy·Frank MusshoffBurkhard Madea

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