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L. Gjersing · SciRah

Researcher profile · Semantic Scholar

L. Gjersing

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L. Gjersing — researcher profile on SciRah

h-index: 15
Works: 41
Citations: 1,481

Most-cited papers

Cross-cultural adaptation of research instruments: language, setting, time and statistical considerations
L. Gjersing, J. Caplehorn, T. Clausen
2010BMC Medical Research Methodology839 citations Open access
Semantic Scholar
Patterns of substance use and mortality risk in a cohort of ‘hard‐to‐reach’ polysubstance users
L. Gjersing, A. Bretteville-Jensen
2018Addiction73 citations
Semantic Scholar
Gender differences in mortality and risk factors in a 13-year cohort study of street-recruited injecting drug users
L. Gjersing, A. Bretteville-Jensen
2014BMC Public Health51 citations Open access
Semantic Scholar
Diversity in causes and characteristics of drug-induced deaths in an urban setting
L. Gjersing, Kristine V. Jonassen, Stian Biong, E. Ravndal +3 more
2013Scandinavian Journal of Public Health49 citations Open access
Semantic Scholar
Illicit use of opioid substitution drugs: prevalence, user characteristics, and the association with non-fatal overdoses.
A. Bretteville-Jensen, Mats Lillehagen, L. Gjersing, J. B. Andreas
2015Drug and Alcohol Dependence46 citations Open access
Semantic Scholar
Open drug scenes: responses of five European cities
H. Waal, T. Clausen, L. Gjersing, M. Gossop
2014BMC Public Health45 citations Open access
Semantic Scholar
Naloxone distribution and possession following a large‐scale naloxone programme
Desiree Madah-Amiri, L. Gjersing, T. Clausen
2018Addiction35 citations Open access
Semantic Scholar
Increasing trend in accidental pharmaceutical opioid overdose deaths and diverging overdose death correlates following the opioid prescription policy liberalization in Norway 2010-2018.
L. Gjersing, E. Amundsen
2022The International journal on drug policy30 citations Open access
Semantic Scholar
Is opioid substitution treatment beneficial if injecting behaviour continues?
L. Gjersing, A. Bretteville-Jensen
2013Drug and Alcohol Dependence29 citations Open access
Semantic Scholar
Attitudes and beliefs towards methadone maintenance treatment among Australian prison health staff.
L. Gjersing, T. Butler, J. Caplehorn, J. Belcher +1 more
2007Drug and Alcohol Review29 citations Open access
Semantic Scholar
Staff attitudes and the associations with treatment organisation, clinical practices and outcomes in opioid maintenance treatment
L. Gjersing, H. Waal, J. Caplehorn, M. Gossop +1 more
2010BMC Health Services Research24 citations Open access
Semantic Scholar
[Extracorporeal shock wave therapy (ESWT) and radial extracorporeal shock wave therapy (rESWT) in chronic musculoskeletal pain].
K. Storheim, L. Gjersing, K. Bølstad, M. Risberg
2010Tidsskrift for Den Norske Laegeforening22 citations Open access
Semantic Scholar
COVID-19 survey among people who use drugs in three cities in Norway
G. Welle-Strand, S. Skurtveit, T. Clausen, Christine Sundal +1 more
2020Drug and Alcohol Dependence20 citations Open access
Semantic Scholar
Prehospital naloxone administration – what influences choice of dose and route of administration?
Ida Tylleskar, L. Gjersing, L. P. Bjørnsen, Anne-Cathrine Braarud +3 more
2020BMC Emergency Medicine16 citations Open access
Semantic Scholar
Individuals Dying of Overdoses Related to Pharmaceutical Opioids Differ from Individuals Dying of Overdoses Related to Other Substances: A Population-Based Register Study
S. Skurtveit, I. Odsbu, L. Gjersing, M. Handal +3 more
2022European Addiction Research15 citations Open access
Semantic Scholar
Illegal substance use among 1,309 music festival attendees: An investigation using oral fluid sample drug tests, breathalysers and questionnaires
L. Gjersing, A. Bretteville-Jensen, Håvard Furuhaugen, H. Gjerde
2019Scandinavian Journal of Public Health15 citations Open access
Semantic Scholar
Drug Use by Music Festival Attendees: A Novel Triangulation Approach Using Self-Reported Data and Test Results of Oral Fluid and Pooled Urine Samples
H. Gjerde, L. Gjersing, J. A. Baz-Lomba, L. Bijlsma +7 more
2019Substance Use & Misuse14 citations Open access
Semantic Scholar
Variations in treatment organisation, practices and outcomes within the Norwegian Opioid Maintenance Treatment Programme
L. Gjersing, H. Waal, J. Røislien, M. Gossop +1 more
201114 citations Open access
Semantic Scholar
Increases in drug overdose deaths in Norway and the United States during the COVID-19 pandemic
Joseph Friedman, L. Gjersing
2022Scandinavian Journal of Public Health13 citations Open access
Semantic Scholar
Correspondence between Oral Fluid Drug Test Results and Self-Reported Illicit Drug Use among Music Festival Attendees
H. Gjerde, L. Gjersing, Håvard Furuhaugen, A. Bretteville-Jensen
2019Substance Use & Misuse13 citations Open access
Semantic Scholar
Identification and Assessment of Drug-User Groups Among Nightlife Attendees: Self-Reports, Breathalyzer-Tests and Oral Fluid Drug Tests
A. Bretteville-Jensen, Jasmina Burdzovic Andreas, L. Gjersing, E. Øiestad +1 more
2019European Addiction Research13 citations Open access
Semantic Scholar
Are overdoses treated by ambulance services an opportunity for additional interventions? A prospective cohort study.
L. Gjersing, A. Bretteville-Jensen
2015Addiction12 citations Open access
Semantic Scholar
Characteristics and risk of incarceration among "hard-to-reach" people who use drugs: A five-year prospective cohort study combining self-reports and registry data.
L. Gjersing, A. Bretteville-Jensen
2021The International journal on drug policy10 citations
Semantic Scholar
Misuse of prescription drugs and overdose deaths
C. Tjagvad, S. Skurtveit, J. Bramness, L. Gjersing +2 more
201610 citations
Semantic Scholar
Injecting Alone is More Common among Men, Frequent Injectors and Polysubstance Users in a Sample of People Who Inject Drugs
L. Gjersing, Marte Kristin Helle
2021Substance Use & Misuse9 citations Open access
Semantic Scholar
Emergency service use is common in the year before death among drug users who die from an overdose
L. Gjersing, Kristine V. Jonassen, S. Skurtveit, J. Bramness +1 more
20179 citations Open access
Semantic Scholar
Heightened mortality risk after a non-fatal opioid overdose: Risk factors for mortality in the week following emergency treatment.
Desiree Eide, L. Gjersing, Aksel Wüsthoff Danielsen, Arnre Kristian Skulberg +4 more
2024Addiction6 citations Open access
Semantic Scholar
“Hooked on the needle”: Exploring the paradoxical attractions towards injecting drug use
Kristin Hanoa, Ola Røed Bilgrei, Kristin Buvik, L. Gjersing
2021Drugs: education prevention and policy6 citations Open access
Semantic Scholar
Mortality during and following treatment with extended-release naltrexone based on data from two clinical trials.
L. Gjersing, L. Tanum, B. Weimand, K. Solli
2025Drug and Alcohol Dependence5 citations Open access
Semantic Scholar
Attitudes towards cannabis use legalization and openness to legal use among young party-goers in Norway
Jasmina Burdzovic Andreas, A. Bretteville-Jensen, L. Gjersing
2022Journal of Studies on Alcohol and Drugs3 citations
Semantic Scholar
A COVID-19 Survey among People Who Use Drugs in Norway
G. Welle-Strand, L. Gjersing, I. K. Olsen, T. Clausen
2022International Journal of Environmental Research and Public Health3 citations Open access
Semantic Scholar
How may alternative drug policy settings influence criminal charges? A longitudinal study of cannabis patients and a general population sample.
A. Bretteville-Jensen, Jenny Williams, L. Gjersing
2020The International journal on drug policy3 citations
Semantic Scholar
Patterns of filled prescriptions and the association with risk of drug‐induced death. A population‐based nested case‐control register study
E. Amundsen, I. Odsbu, S. Skurtveit, L. Gjersing
2024Pharmacoepidemiology and Drug Safety2 citations Open access
Semantic Scholar
Attitudes Toward Cannabis Use Legalization and Openness to Legal Use Among Young Partygoers in Norway.
Jasmina Burdzovic Andreas, A. Bretteville-Jensen, L. Gjersing
2023Journal of Studies on Alcohol and Drugs2 citations
Semantic Scholar
Health care service utilization and drug overdose death: A national nested case-control registry study.
L. Gjersing, E. Amundsen
2024American Journal on Addictions1 citations Open access
Semantic Scholar
Introduction to the special section on polysubstance use: Emerging trends, psychosocial drivers, and treatment challenges
Amanda Bunting, L. Gjersing, Robert Raffa
2024The International journal on drug policy1 citations Open access
Semantic Scholar
Prescribed and non-prescribed benzodiazepine use and its correlates in a sample of out-of-treatment people who use drugs
Kristin Hanoa, L. Gjersing
2026Journal of Substance Use0 citations Open access
Semantic Scholar
High-risk injecting practices among people who inject drugs in Norway: Prevalence, characteristics and associated factors.
Helene Storbråten Hagene, Thomas Clausen, L. Gjersing
2026Journal of substance use and addiction treatment0 citations Open access
Semantic Scholar
Staff attitudes towards opioid maintenance treatment (OMT) and the associations with treatment
L. Gjersing
20110 citations
Semantic Scholar
Holdninger og behandlinger
L. Gjersing, T. Clausen
20110 citations
Semantic Scholar
[Self-satisfied course leadership--seen from the other side].
L. Wüsthoff, I. Havnes, L. Gjersing, Astrid B Willersrud
2008Tidsskrift for Den Norske Laegeforening0 citations
Semantic Scholar

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M. Gossop×4
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Håvard Furuhaugen×3

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Kristine V. Jonassen×2

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