Hallvard Gjerde

Summary

Affiliation: Norwegian Institute of Public Health
Country: Norway

Publications

  1. ncbi Analysis of alcohol and drugs in oral fluid from truck drivers in Norway
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Medicine and Drug Abuse Research, Oslo, Norway
    Traffic Inj Prev 13:43-8. 2012
  2. ncbi Estimating equivalent cutoff thresholds for drugs in blood and oral fluid using prevalence regression: a study of tetrahydrocannabinol and amphetamine
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, PO Box 4404 Nydalen, 0403 Oslo, Norway
    Forensic Sci Int 212:e26-30. 2011
  3. ncbi Toxicological investigations of drivers killed in road traffic accidents in Norway during 2006-2008
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, Lovisenberggata 6, PO Box 4404, Nydalen, 0403 Oslo, Norway
    Forensic Sci Int 212:102-9. 2011
  4. ncbi Prevalence of driving with blood drug concentrations above proposed new legal limits in Norway: estimations based on drug concentrations in oral fluid
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, P O Box 4404 Nydalen, 0403 Oslo, Norway
    Forensic Sci Int 210:221-7. 2011
  5. ncbi Alcohol, psychoactive drugs and fatal road traffic accidents in Norway: a case-control study
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, Lovisenberggata 6, PO Box 4404 Nydalen, NO 0403 Oslo, Norway
    Accid Anal Prev 43:1197-203. 2011
  6. ncbi Comparison of zopiclone concentrations in oral fluid sampled with Intercept(®) oral specimen collection device and Statsure Saliva Sampler™ and concentrations in blood
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, P O Box 4404 Nydalen, NO 0403 Oslo, Norway
    J Anal Toxicol 34:590-3. 2010
  7. ncbi The prevalence of alcohol and drugs in sampled oral fluid is related to sample volume
    Hallvard Gjerde
    Norwegian Institute of Public Health, Oslo, Norway
    J Anal Toxicol 34:416-9. 2010
  8. ncbi Use of alcohol and drugs by Norwegian employees: a pilot study using questionnaires and analysis of oral fluid
    Hallvard Gjerde
    Norwegian Institute of Public Health, Pb 4404 Nydalen, NO 0403 Oslo, Norway
    J Occup Med Toxicol 5:13. 2010
  9. ncbi Comparison of drug concentrations in blood and oral fluid collected with the Intercept sampling device
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, Oslo, Norway
    J Anal Toxicol 34:204-9. 2010
  10. ncbi Can the prevalence of high blood drug concentrations in a population be estimated by analysing oral fluid? A study of tetrahydrocannabinol and amphetamine
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, Oslo, Norway
    Forensic Sci Int 195:153-9. 2010

Detail Information

Publications13

  1. ncbi Analysis of alcohol and drugs in oral fluid from truck drivers in Norway
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Medicine and Drug Abuse Research, Oslo, Norway
    Traffic Inj Prev 13:43-8. 2012
    ..To examine alcohol and drug use among truck drivers compared to car or van drivers in Norway by analyzing samples of oral fluid...
  2. ncbi Estimating equivalent cutoff thresholds for drugs in blood and oral fluid using prevalence regression: a study of tetrahydrocannabinol and amphetamine
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, PO Box 4404 Nydalen, 0403 Oslo, Norway
    Forensic Sci Int 212:e26-30. 2011
    ....
  3. ncbi Toxicological investigations of drivers killed in road traffic accidents in Norway during 2006-2008
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, Lovisenberggata 6, PO Box 4404, Nydalen, 0403 Oslo, Norway
    Forensic Sci Int 212:102-9. 2011
    ....
  4. ncbi Prevalence of driving with blood drug concentrations above proposed new legal limits in Norway: estimations based on drug concentrations in oral fluid
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, P O Box 4404 Nydalen, 0403 Oslo, Norway
    Forensic Sci Int 210:221-7. 2011
    ..The results from a roadside survey of 10,816 drivers was used as basis for the estimation, and the most prevalent drugs were included...
  5. ncbi Alcohol, psychoactive drugs and fatal road traffic accidents in Norway: a case-control study
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, Lovisenberggata 6, PO Box 4404 Nydalen, NO 0403 Oslo, Norway
    Accid Anal Prev 43:1197-203. 2011
    ..For most substances, higher ORs were found when studying drivers involved in single vehicle accidents than for those involved in multiple vehicle accidents, but confidence intervals were wider...
  6. ncbi Comparison of zopiclone concentrations in oral fluid sampled with Intercept(®) oral specimen collection device and Statsure Saliva Sampler™ and concentrations in blood
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, P O Box 4404 Nydalen, NO 0403 Oslo, Norway
    J Anal Toxicol 34:590-3. 2010
    ..35. The results indicate that the type of sampling device may significantly affect the analytical result for zopiclone in sampled oral fluid...
  7. ncbi The prevalence of alcohol and drugs in sampled oral fluid is related to sample volume
    Hallvard Gjerde
    Norwegian Institute of Public Health, Oslo, Norway
    J Anal Toxicol 34:416-9. 2010
    ..If not analyzed, positive drug cases will be missed, and the total prevalence of alcohol and drugs in the population being studied will be underestimated...
  8. ncbi Use of alcohol and drugs by Norwegian employees: a pilot study using questionnaires and analysis of oral fluid
    Hallvard Gjerde
    Norwegian Institute of Public Health, Pb 4404 Nydalen, NO 0403 Oslo, Norway
    J Occup Med Toxicol 5:13. 2010
    ..The use of alcohol and drugs may affect workplace safety and productivity. Little is known about the magnitude of this problem in Norway...
  9. ncbi Comparison of drug concentrations in blood and oral fluid collected with the Intercept sampling device
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, Oslo, Norway
    J Anal Toxicol 34:204-9. 2010
    ..1 amphetamine, 2.9 methamphetamine, 5.4 codeine, 1.9 morphine, and 4.7 tetrahydrocannabinol. The correlation coefficients between drug concentrations in oral fluid and blood ranged from 0.15 to 0.96 for the six most prevalent drugs...
  10. ncbi Can the prevalence of high blood drug concentrations in a population be estimated by analysing oral fluid? A study of tetrahydrocannabinol and amphetamine
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, Oslo, Norway
    Forensic Sci Int 195:153-9. 2010
    ..To study several methods for estimating the prevalence of high blood concentrations of tetrahydrocannabinol and amphetamine in a population of drug users by analysing oral fluid (saliva)...
  11. ncbi Prevalence of alcohol and drugs among Norwegian motor vehicle drivers: a roadside survey
    Hallvard Gjerde
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, P O Box 4404 Nydalen, NO 0403 Oslo, Norway
    Accid Anal Prev 40:1765-72. 2008
    ..4%), benzodiazepines (1.4%), codeine (0.8%), tetrahydrocannabinol (0.6%) and amphetamines (0.3%). Two or more drugs were found in 0.6% of the samples, corresponding to 15% of the drug-positive drivers...
  12. ncbi Ethyl glucuronide concentrations in oral fluid, blood, and urine after volunteers drank 0.5 and 1.0 g/kg doses of ethanol
    Gudrun Høiseth
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, Nydalen, Oslo, Norway
    J Anal Toxicol 34:319-24. 2010
    ..5 h (range 3.5-11.5 h) in oral fluid. According to this, the detection time for EtG in oral fluid is therefore only a few hours longer than for ethanol itself and represents limited additional value...
  13. ncbi Levels of ethyl glucuronide and ethyl sulfate in oral fluid, blood, and urine after use of mouthwash and ingestion of nonalcoholic wine
    Gudrun Høiseth
    Norwegian Institute of Public Health, Division of Forensic Toxicology and Drug Abuse, Oslo, Norway
    J Anal Toxicol 34:84-8. 2010
    ..Finally, the study showed that a positive EtG or EtS result after accidental alcohol exposure is unlikely in blood and oral fluid...