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Willeman T, Grunwald J, Manceau M, Lapierre F, Krebs-Drouot L, Boudin C, Scolan V, Eysseric-Guerin H, Stanke-Labesque F, Revol B. Smartphone swabs as an emerging tool for toxicology testing: a proof-of-concept study in a nightclub. Clin Chem Lab Med 2024; 0:cclm-2024-0242. [PMID: 38578968 DOI: 10.1515/cclm-2024-0242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 03/27/2024] [Indexed: 04/07/2024]
Abstract
OBJECTIVES Smartphones have become everyday objects on which the accumulation of fingerprints is significant. In addition, a large proportion of the population regularly uses a smartphone, especially younger people. The objective of this study was to evaluate smartphones as a new matrix for toxico-epidemiology. METHODS This study was conducted during two separate events (techno and trance) at an electronic music nightclub in Grenoble, France. Data on reported drug use and whether drugs were snorted directly from the surface of the smartphone were collected using an anonymous questionnaire completed voluntarily by drug users. Then, a dry swab was rubbed for 20 s on all sides of the smartphone. The extract was analyzed by liquid chromatography coupled to tandem mass spectrometry on a Xevo TQ-XS system (Waters). RESULTS In total, 122 swabs from 122 drug users were collected. The three main drugs identified were MDMA (n=83), cocaine (n=59), and THC (n=51). Based on declarative data, sensitivity ranged from 73 to 97.2 % and specificity from 71.8 to 88.1 % for MDMA, cocaine, and THC. Other substances were identified such as cocaine adulterants, ketamine, amphetamine, LSD, methamphetamine, CBD, DMT, heroin, mescaline, and several NPS. Numerous medications were also identified, such as antidepressants, anxiolytics, hypnotics, and painkillers. Different use patterns were identified between the two events. CONCLUSIONS This proof-of-concept study on 122 subjects shows that smartphone swab analysis could provide a useful and complementary tool for drug testing, especially for harm-reduction programs and toxico-epidemiolgy studies, with acceptable test performance, despite declarative data.
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Affiliation(s)
- Théo Willeman
- 36724 Laboratoire de Pharmacologie, Pharmacogénétique et Toxicologie, CHU Grenoble Alpes , 27015 Institut de Biologie et de Pathologie, Univ Grenoble Alpes , Grenoble, France
- 36724 Clinique de Médecine Légale, CHU Grenoble Alpes , 27015 Univ Grenoble Alpes , Grenoble, France
| | - Justine Grunwald
- 36724 Laboratoire de Pharmacologie, Pharmacogénétique et Toxicologie, CHU Grenoble Alpes , 27015 Institut de Biologie et de Pathologie, Univ Grenoble Alpes , Grenoble, France
- 36724 CEIP-Addictovigilance, CHU Grenoble Alpes , 27015 Univ Grenoble Alpes , Grenoble, France
| | - Marc Manceau
- Clinical Research Center, Inserm CIC1406, Grenoble Alpes University Hospital, Grenoble, France
| | | | - Lila Krebs-Drouot
- 36724 Clinique de Médecine Légale, CHU Grenoble Alpes , 27015 Univ Grenoble Alpes , Grenoble, France
| | - Coralie Boudin
- Laboratoire de Médecine Légale, Univ Grenoble Alpes, Grenoble, France
| | - Virginie Scolan
- 36724 Clinique de Médecine Légale, CHU Grenoble Alpes , 27015 Univ Grenoble Alpes , Grenoble, France
- Laboratoire de Médecine Légale, Univ Grenoble Alpes, Grenoble, France
| | - Hélène Eysseric-Guerin
- 36724 Laboratoire de Pharmacologie, Pharmacogénétique et Toxicologie, CHU Grenoble Alpes , 27015 Institut de Biologie et de Pathologie, Univ Grenoble Alpes , Grenoble, France
- Laboratoire de Médecine Légale, Univ Grenoble Alpes, Grenoble, France
| | - Françoise Stanke-Labesque
- 36724 Laboratoire de Pharmacologie, Pharmacogénétique et Toxicologie, CHU Grenoble Alpes , 27015 Institut de Biologie et de Pathologie, Univ Grenoble Alpes , Grenoble, France
- Laboratoire HP2 Inserm U1300, Univ Grenoble Alpes, Grenoble, France
| | - Bruno Revol
- 36724 CEIP-Addictovigilance, CHU Grenoble Alpes , 27015 Univ Grenoble Alpes , Grenoble, France
- Laboratoire HP2 Inserm U1300, Univ Grenoble Alpes, Grenoble, France
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Eassey C, Hughes CE, Wadds P, de Andrade D, Barratt MJ. A systematic review of interventions that impact alcohol and other drug-related harms in licensed entertainment settings and outdoor music festivals. Harm Reduct J 2024; 21:47. [PMID: 38383344 PMCID: PMC10882826 DOI: 10.1186/s12954-024-00949-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 01/26/2024] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND Harms associated with the use of alcohol and other drugs (AOD) in licensed entertainment settings (LES) and outdoor music festivals (OMF) are ongoing public health and criminal justice concerns. This systematic review provides a comprehensive, synthesized report on the evidence base of interventions that impact harm in these settings, and how they affect health, behavioral, and criminal justice outcomes. METHODS Nine databases were searched for experimental and observational studies published between 2010 and 2021. Studies were included if they were peer-reviewed, published in English, described interventions which could impact AOD-related harms in LES or OMF (and were delivered in these environments), and reported on health, criminal justice and/or behavioral outcomes. Methodological quality was assessed using the Effective Public Health Practice Project's Quality Assessment Tool for Quantitative Studies and the Critical Appraisal Skills Program for qualitative studies. A narrative synthesis was conducted to synthesize outcomes across studies. The review protocol was registered in PROSPERO (CRD42020140004). RESULTS Of the 48,303 studies screened, 100 met the inclusion criteria. 86 focused solely on reducing alcohol-related harm, 7 on reducing illicit drug-related harm, and 7 on both. Most (n = 88) focused on LES and evaluated changes in laws and regulations (n = 28) and/or multicomponent interventions/policies (n = 41). Multicomponent interventions showed the best results for both health (62% positive) and criminal justice (84% positive) outcomes, with 71% of studies being rated as strong quality. There was also good evidence to support the careful application of trading hour restrictions and limited but promising evidence to support medical services and drug checking. CONCLUSION The breadth, quality and volume of evidence regarding what works in reducing AOD-related harm in recreational settings have increased in the past decade, particularly regarding LES. Findings support onsite medical services (reducing ambulance transfer rates), multicomponent interventions targeting alcohol accessibility and availability (reducing assaults), and drug checking services, but suggest other interventions such as drug detection dogs may exacerbate harm. Further, higher quality research is required to address identified gaps in the evidence base, particularly on optimal interventions within OMF, around illicit drugs more broadly and in the Global South.
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Affiliation(s)
- Christopher Eassey
- National Drug and Alcohol Research Centre, UNSW Sydney, Sydney, Australia
| | - Caitlin E Hughes
- National Drug and Alcohol Research Centre, UNSW Sydney, Sydney, Australia
- Centre for Crime Policy and Research, Flinders University, Adelaide, Australia
| | - Phillip Wadds
- The School of Law, Society and Criminology, and Centre for Criminology, Law and Justice, Faculty of Law and Justice, UNSW Sydney, Sydney, Australia
| | - Dominique de Andrade
- Griffith Criminology Institute, Griffith University, Brisbane, Australia
- School of Psychology, University of Queensland, Brisbane, Australia
- Centre for Drug Use, Addictive and Anti-Social Behaviour Research, School of Psychology, Deakin University, Geelong, Australia
| | - Monica J Barratt
- National Drug and Alcohol Research Centre, UNSW Sydney, Sydney, Australia.
- Social Equity Research Centre and Digital Ethnography Research Centre, RMIT University, 124 La Trobe Street, Melbourne, VIC, 3000, Australia.
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Feltmann K, Elgán TH, Böttcher M, Lierheimer S, Hermansson S, Beck O, Gripenberg J. Feasibility of using breath sampling of non-volatiles to estimate the prevalence of illicit drug use among nightlife attendees. Sci Rep 2022; 12:20283. [PMID: 36434044 PMCID: PMC9700783 DOI: 10.1038/s41598-022-24741-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 11/18/2022] [Indexed: 11/27/2022] Open
Abstract
The prevalence of drug use among nightlife attendees needs to be accurately estimated to, for example, evaluate preventive interventions. This study tested the feasibility of using a breath-sampling device to estimate the prevalence of drug use among nightlife attendees. The study was conducted at five nightclubs and a large music festival in Stockholm, Sweden. Participants were invited to participate and microparticles in exhaled breath were sampled and analyzed for 47 compounds using a state-of-the-art analytic method that follows forensic standards. In addition, participants' breath alcohol concentration was measured and they were interviewed about demographics, drinking habits, and drug use. Of the people invited, 73.7% (n = 1223) agreed to participate, and breath samples were collected from 1204 participants. Breath sampling was fast and well-accepted by participants. 13 percent of participants tested positive for an illicit drug, but only 4.3% self-reported drug use during the last 48 h. The most common substances detected were cocaine, amphetamine, and MDMA. There was no agreement between self-reported and measured use of any drug. Breath sampling is a convenient method to test illicit drug use among a large number of participants at events, and can be used as an estimate of drug use prevalence.
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Affiliation(s)
- Kristin Feltmann
- STAD, Stockholm Prevents Alcohol and Drug Problems, Stockholm, Sweden ,grid.4714.60000 0004 1937 0626Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, Norra Stationsgatan 69, plan 7, 11364 Stockholm, Sweden
| | - Tobias H. Elgán
- STAD, Stockholm Prevents Alcohol and Drug Problems, Stockholm, Sweden ,grid.4714.60000 0004 1937 0626Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, Norra Stationsgatan 69, plan 7, 11364 Stockholm, Sweden
| | - Michael Böttcher
- MVZ Medizinische Labore Dessau Kassel GmbH, Dessau-Roßlau, Germany
| | | | | | - Olof Beck
- grid.4714.60000 0004 1937 0626Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, Norra Stationsgatan 69, plan 7, 11364 Stockholm, Sweden
| | - Johanna Gripenberg
- STAD, Stockholm Prevents Alcohol and Drug Problems, Stockholm, Sweden ,grid.4714.60000 0004 1937 0626Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, Norra Stationsgatan 69, plan 7, 11364 Stockholm, Sweden
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Pooled Urine Analysis at a Belgian Music Festival: Trends in Alcohol Consumption and Recreational Drug Use. Prehosp Disaster Med 2022; 37:806-809. [PMID: 36148611 DOI: 10.1017/s1049023x22001285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Recreational drug use has become more and more accepted in society. Availability and purity are rising and new psychoactive substances (NPS) are popping up.The aim of this study was to provide objective data on illicit drug use at a Belgian festival in order to report on arising trends. This may provide additional information to help develop preventive strategies. METHODS A cross-sectional study took place during a music festival in the summer of 2019, where 43 samples of pooled urine were collected at four different locations and at different moments of the day. Analysis was performed using gas chromatography with a flame ionization detector (GC-FID) to determine ethanol concentrations. Drugs of abuse were quantified using liquid chromatography-tandem mass spectrometry. A qualitative analysis was performed using high-resolution mass spectrometry. RESULTS Median ethanol concentration was 0.88g/L. Cocaine, 3,4-methylenedioxymethamphetamine (MDMA), amphetamines, ketamine, and cannabis were detected in almost every sample and often in high concentrations. Furthermore, two NPS were detected and a variety of over-the-counter medication and adulterants were also found. DISCUSSION The findings were largely in-line with trends outlined in the European Drug Report. Striking were the relatively high concentrations of MDMA and ketamine and detection of two synthetic cathinones. Two possible adulterants of cocaine were detected, namely flecainide and amlodipine. CONCLUSION Music festivals are considered a high-risk setting for alcohol consumption and illicit drug use. Analysis of pooled urine samples at a festival therefore provides a valuable method to evaluate trends and to screen for new substances. Wide-spread use of classical drugs and identification of two NPS were observed during a major international music festival in Belgium. Results need to be interpreted carefully, taking into account the possibilities and limitations of the used techniques and a standardized sampling is required.
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Mohr ALA, Fogarty MF, Krotulski AJ, Logan BK. Evaluating Trends in Novel Psychoactive Substances Using a Sentinel Population of Electronic Dance Music Festival Attendees. J Anal Toxicol 2021; 45:490-497. [PMID: 32860703 DOI: 10.1093/jat/bkaa104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/25/2020] [Accepted: 08/24/2020] [Indexed: 11/13/2022] Open
Abstract
Electronic dance music (EDM) festivals have become a popular venue for recreational drug use, including the use of traditional stimulants like 3,4-methylenendioxymethamphetamine (MDMA) and novel psychoactive substances (NPS). Using this cohort of people who use drugs recreationally, this study sought to collect biological specimens and self-reported drug use data from EDM festival attendees in the United States to monitor regional and temporal trends related to NPS use and turnover between 2014 and 2017. Oral fluid samples were collected at three United States EDM festival locations, including Miami, Florida (2014 to 2017); Tampa, Florida (2017) and Atlanta, Georgia (2017). Samples were screened by liquid chromatography-quadrupole time-of-flight mass spectrometry and confirmed by liquid chromatography-tandem mass spectrometry. Over the 4 years, 1,233 oral fluid samples were collected. With respect to self-reported drug use, 63% of respondents reported medicinal and/or recreational drug use within the last week. When comparing 4 years of data from Miami (2014 to 2017), NPS trends showed the disappearance of alpha-PVP after 2014 followed by a significant increase in ethylone positivity in 2015 and rapid decrease in 2016. Dibutylone was identified for the first time in Miami 2016, and N-ethyl pentylone was identified for the first time in Miami 2017. Additionally, 3,4-methylenendioxymethamphetamine positivity steadily increased from 2014 to 2017. A comparison across study sites (Miami, Tampa and Atlanta) and specific trends with respect to novel simulant use are described within. Using this opportunistic approach of monitoring drug trends, we have found that peak positivity of novel stimulants usually is within a year of their first detection. Understanding the dynamics of NPS drug markets will allow laboratories to plan for resource allocation and scope updates within a timely fashion to assist with the detection and confirmation of these emerging substances in samples submitted for forensic analysis.
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Affiliation(s)
- Amanda L A Mohr
- Center for Forensic Science Research and Education (CFSRE), Fredric Rieders Family Foundation, Willow Grove, PA 19090, USA
| | - Melissa F Fogarty
- Center for Forensic Science Research and Education (CFSRE), Fredric Rieders Family Foundation, Willow Grove, PA 19090, USA
| | - Alex J Krotulski
- Center for Forensic Science Research and Education (CFSRE), Fredric Rieders Family Foundation, Willow Grove, PA 19090, USA
| | - Barry K Logan
- Center for Forensic Science Research and Education (CFSRE), Fredric Rieders Family Foundation, Willow Grove, PA 19090, USA.,Toxicology Department, NMS Labs, Horsham, PA 19044, USA
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Feltmann K, Elgán TH, Strandberg AK, Kvillemo P, Jayaram-Lindström N, Grabski M, Waldron J, Freeman T, Curran HV, Gripenberg J. Illicit Drug Use and Associated Problems in the Nightlife Scene: A Potential Setting for Prevention. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:4789. [PMID: 33946164 PMCID: PMC8125188 DOI: 10.3390/ijerph18094789] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/24/2021] [Accepted: 04/27/2021] [Indexed: 11/16/2022]
Abstract
Illicit drug use is prevalent in the nightlife scene, especially at electronic dance music (EDM) events. The aim of the present study was to investigate illicit drug use patterns and consequences of drug use among frequent visitors of EDM events. Young adults (18-34 years old) who had visited at least six EDM events in Sweden during the past year participated in a web-based survey on drug use patterns and its consequences. Fifty-nine percent of participants had used illicit drugs during the past year, most often cannabis followed by ecstasy, cocaine, and amphetamine. Nightlife venues were identified as the main setting for the use of central stimulants, while cannabis was mostly used at home. Frequent alcohol and tobacco use was associated with illicit drug use. The most prevalent negative consequences of drug use were related to mental health, such as impairments in mood, sleep, and memory problems, but physical manifestations were also reported, such as palpitations and collapsing. These findings confirm that drug use is prevalent and associated with negative health effects among EDM nightlife attendees. The nightlife scene is a setting with promising potential to reach a high-risk target group with illicit drug use prevention interventions.
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Affiliation(s)
- Kristin Feltmann
- STAD, Stockholm Prevents Alcohol and Drug Problems, SE-113 64 Stockholm, Sweden; (T.H.E.); (A.K.S.); (P.K.); (J.G.)
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, Norra Stationsgatan 69, SE-113 64 Stockholm, Sweden;
| | - Tobias H. Elgán
- STAD, Stockholm Prevents Alcohol and Drug Problems, SE-113 64 Stockholm, Sweden; (T.H.E.); (A.K.S.); (P.K.); (J.G.)
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, Norra Stationsgatan 69, SE-113 64 Stockholm, Sweden;
| | - Anna K. Strandberg
- STAD, Stockholm Prevents Alcohol and Drug Problems, SE-113 64 Stockholm, Sweden; (T.H.E.); (A.K.S.); (P.K.); (J.G.)
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, Norra Stationsgatan 69, SE-113 64 Stockholm, Sweden;
| | - Pia Kvillemo
- STAD, Stockholm Prevents Alcohol and Drug Problems, SE-113 64 Stockholm, Sweden; (T.H.E.); (A.K.S.); (P.K.); (J.G.)
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, Norra Stationsgatan 69, SE-113 64 Stockholm, Sweden;
| | - Nitya Jayaram-Lindström
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, Norra Stationsgatan 69, SE-113 64 Stockholm, Sweden;
| | - Meryem Grabski
- Clinical Psychopharmacology Unit, University College London, 1-19 Torrington Place, London WC1E 7HB, UK; (M.G.); (J.W.); (T.F.); (H.V.C.)
| | - Jon Waldron
- Clinical Psychopharmacology Unit, University College London, 1-19 Torrington Place, London WC1E 7HB, UK; (M.G.); (J.W.); (T.F.); (H.V.C.)
| | - Tom Freeman
- Clinical Psychopharmacology Unit, University College London, 1-19 Torrington Place, London WC1E 7HB, UK; (M.G.); (J.W.); (T.F.); (H.V.C.)
- Addiction and Mental Health Group (AIM), Department of Psychology, University of Bath, Bath BA2 7AY, UK
| | - Helen Valerie Curran
- Clinical Psychopharmacology Unit, University College London, 1-19 Torrington Place, London WC1E 7HB, UK; (M.G.); (J.W.); (T.F.); (H.V.C.)
| | - Johanna Gripenberg
- STAD, Stockholm Prevents Alcohol and Drug Problems, SE-113 64 Stockholm, Sweden; (T.H.E.); (A.K.S.); (P.K.); (J.G.)
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Region Stockholm, Norra Stationsgatan 69, SE-113 64 Stockholm, Sweden;
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Feltmann K, Gripenberg J, Elgán TH. Compliance to the Alcohol Law: Overserving to Obviously Intoxicated Visitors at Music Festivals. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17228699. [PMID: 33238559 PMCID: PMC7700124 DOI: 10.3390/ijerph17228699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/11/2020] [Accepted: 11/20/2020] [Indexed: 11/16/2022]
Abstract
Music festivals are often high-risk settings associated with large numbers of visitors and high alcohol intoxication levels, which contribute to a number of public health-related problems. According to the Swedish Alcohol Act, servers are responsible for not overserving alcohol to obviously intoxicated patrons. The aim of the current study was to examine compliance to the Swedish Alcohol Act at music festivals by assessing the rate of alcohol overserving to festival-goers. We conducted a study at a large music festival in Sweden hosting approximately 50,000 visitors. Professional actors, i.e., pseudo-patrons, enacted a standardized scene in which a highly intoxicated festival-goer attempted to buy beer at licensed premises inside the festival. Observers monitored each attempt. A total of 52 purchase attempts were conducted. The rate of overserving was 26.9% and was not influenced by the server’s gender, the number of servers, or the level of crowdedness at the bar area. Overserving differed between server age groups, which was not statistically significant when controlling for other factors. Compliance to the Alcohol Act at the festival can be improved. Intoxication levels and related problems can be reduced by implementing a multicomponent intervention including staff training, policy work, and improved enforcement.
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Bombana HS, Dos Santos MF, Muñoz DR, Leyton V. Hollow-fibre liquid-phase microextraction and gas chromatography-mass spectrometric determination of amphetamines in whole blood. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1139:121973. [PMID: 31962207 DOI: 10.1016/j.jchromb.2020.121973] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 02/02/2023]
Abstract
Here, we present a fully validated method using a hollow-fibre liquid-phase microextraction technique for the determination by gas chromatography-mass spectrometry (GC-MS) of amphetamine (AMP), methamphetamine (MET), fenproporex (FEN), 3,4-methylenedioxymethamphetamine (MDMA), 3,4-methylenedioxyamphetamine (MDA) and 3,4-methylenedioxyethylamphetamine (MDEA) in whole blood. The validation parameters presented successful values within those recommended by the Scientific Working Group for Forensic Toxicology (SWGTox) in the Standard Practices for Method Validation in Forensic Toxicology. The limits of detection ranged from 1 to 3 ng/mL, and the limits of quantification ranged from 2 to 5 ng/mL. The determination coefficients (r2) ranged from 0.990 to 0.997, and the method presented good intraday and interday accuracy (from 90.4% to 97.2%) and satisfactory recovery (from 68% to 110%). No carryover was observed. The heteroscedasticity was tested, and only AMP presented homoscedasticity. Weighting factors were applied to correct the linearity of MET (1/x2), MDA (1/x), FEN (1/x1/2), MDMA (1/x2) and MDEA (1/y). Dilution integrity was tested at ratios of 1:2, 1:5 and 1:10, and all maintained intraday precision (from 94.9% to 99.3%) and interday precision (from 89.4% to 94.9%). The validated method was applied to six real whole blood samples from individuals suspected of consuming ecstasy, and MDMA, MDA and amphetamine were successfully identified and quantified.
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Affiliation(s)
- Henrique Silva Bombana
- Faculty of Medicine, University of Sao Paulo, Av. Dr. Arnaldo, 455 Cerqueira Cesar, Sao Paulo 01246-903, Brazil.
| | - Marcelo Filonzi Dos Santos
- Faculty of Medicine, University of Sao Paulo, Av. Dr. Arnaldo, 455 Cerqueira Cesar, Sao Paulo 01246-903, Brazil
| | - Daniel Romero Muñoz
- Faculty of Medicine, University of Sao Paulo, Av. Dr. Arnaldo, 455 Cerqueira Cesar, Sao Paulo 01246-903, Brazil
| | - Vilma Leyton
- Faculty of Medicine, University of Sao Paulo, Av. Dr. Arnaldo, 455 Cerqueira Cesar, Sao Paulo 01246-903, Brazil
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Gjerde H, Gjersing L, Baz-Lomba JA, Bijlsma L, Salgueiro-González N, Furuhaugen H, Bretteville-Jensen AL, Hernández F, Castiglioni S, Johanna Amundsen E, Zuccato E. Drug Use by Music Festival Attendees: A Novel Triangulation Approach Using Self-Reported Data and Test Results of Oral Fluid and Pooled Urine Samples. Subst Use Misuse 2019; 54:2317-2327. [PMID: 31398072 DOI: 10.1080/10826084.2019.1646285] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: Self-reported data are commonly used when investigating illicit substance use. However, self-reports have well-known limitations such as limited recall and socially desirable responding. Mislabeling or adulteration of drugs on the illicit market may also cause incorrect reporting. Objectives: We aimed to examine what could be gained in terms of illicit drug use findings among music festival attendees when including biological sample test results in the assessment. Methods: We included 651 attendees at three music festivals in Norway from June to August 2016. Self-reported drug use was recorded using questionnaires, and samples of oral fluid were analyzed to detect use of illicit drugs. In addition, we analyzed samples of pooled urine from portable toilets at each festival. Results: All methods identified cannabis, MDMA, and cocaine as the most commonly used drugs. Overall, 6.6% of respondents reported use of illicit substances during the previous 48 hours. Oral fluid testing identified a larger number of drug users as 12.6% tested positive for illicit drugs. In oral fluid testing, we identified ketamine and three new psychoactive substances (NPS) that had not been reported on the questionnaire. In pooled urine testing, we identified amphetamine and three additional NPS that were neither reported used nor found in oral fluid samples. Conclusions/Importance: Drug testing of biological samples proved to be an important supplement to self-reports as a larger number of illicit substances could be detected.
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Affiliation(s)
- Hallvard Gjerde
- Section of Drug Abuse Research, Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway
| | - Linn Gjersing
- Department of Alcohol, Tobacco and Drugs, Norwegian Institute of Public Health, Oslo, Norway
| | | | - Lubertus Bijlsma
- Research Institute for Pesticides and Water, University Jaume I, Castellón, Spain
| | | | - Håvard Furuhaugen
- Section of Drug Abuse Research, Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway
| | | | - Félix Hernández
- Research Institute for Pesticides and Water, University Jaume I, Castellón, Spain
| | - Sara Castiglioni
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Ellen Johanna Amundsen
- Department of Alcohol, Tobacco and Drugs, Norwegian Institute of Public Health, Oslo, Norway
| | - Ettore Zuccato
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
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Gjerde H, Gjersing L, Furuhaugen H, Bretteville-Jensen AL. Correspondence between Oral Fluid Drug Test Results and Self-Reported Illicit Drug Use among Music Festival Attendees. Subst Use Misuse 2019; 54:1337-1344. [PMID: 30860932 DOI: 10.1080/10826084.2019.1580295] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Use of illicit substances is often under-reported. Testing positive in oral fluid provides an objective confirmation of recent intake. OBJECTIVES To examine the agreement between oral fluid test results and self-reported substance use among music festival attendees, and factors associated with reporting past 48 h drug use among users identified by drug testing. METHODS One thousand three hundred nine participants were recruited from six music festivals in Norway (June-August 2016). They completed a questionnaire and provided oral fluid samples analyzed for amphetamines, MDMA, tetrahydrocannabinol (cannabis), and cocaine. Additionally, their blood alcohol levels were measured. RESULTS Overall, 5.5% reported use of amphetamines, cannabis, cocaine, and/or MDMA during past 48 h in the questionnaire, whereas 10.8% tested positive in oral fluid. Only 16.7% of identified cocaine users and 31.1% of identified MDMA users reported past 48 h cocaine or MDMA use, respectively. Higher proportions of identified cannabis and amphetamine users reported past 48 h use (53.8% and 55.6%, respectively). Multivariable logistic regression analysis showed that among participants who tested positive, those reporting weekly illicit substance use (Adjusted Odds Ratio [AOR] 30.6; 95% Confidence Interval [CI] 6.3-147.9), and using such substances when younger than 18 years (AOR 5.0; 95% CI 1.9-13.4) were more likely to report past 48 h use. Conclusions/Importance: Oral fluid testing appears to be an important tool when studying illicit substance use among music festival attendees, as significant under-reporting was observed. Among those testing positive, regular, and experienced users were more likely to report recent use, compared to less regular and experienced users.
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Affiliation(s)
- Hallvard Gjerde
- a Section of Drug Abuse Research, Department of Forensic Sciences , Oslo University Hospital , Oslo , Norway
| | - Linn Gjersing
- b Department of Alcohol, Tobacco and Drugs , Norwegian Institute of Public Health , Oslo , Norway
| | - Håvard Furuhaugen
- a Section of Drug Abuse Research, Department of Forensic Sciences , Oslo University Hospital , Oslo , Norway
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