ArticleJournal of studies on alcohol and drugs2018
Recent Self-Reported Cannabis Use Is Associated With the Biometrics of Delta-9-Tetrahydrocannabinol.
Article in Journal of studies on alcohol and drugs, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
11 citing papers in PubMed.
- Co-Use of Some Substances Associated With Higher Doses in Adolescents: Findings From the Adolescent Brain Cognitive Development Study.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2026Article
- Cannabinoid profiling across toxicology samples in adolescents and young adults by route of administration and in relation to depression symptoms.Journal of analytical toxicology · 2025Article
- Assessing Cannabis Use in People with Psychosis.Cannabis and cannabinoid research · 2024Review
- Psychoactive drugs and male fertility: impacts and mechanisms.Reproductive biology and endocrinology : RB&E · 2023Review
- The Association between Monthly, Yearly, and Lifetime Cannabis Use, and Semen Parameters in Asian-American Men.The world journal of men's health · 2023Article
- Concordance between substance use self-report and hair analysis in community-based adolescents.The American journal of drug and alcohol abuse · 2023Article
- Assessment of transient dopamine responses to smoked cannabis.Drug and alcohol dependence · 2021Article
- Preliminary Evidence for Cannabis and Nicotine Urinary Metabolites as Predictors of Verbal Memory Performance and Learning Among Young Adults.Journal of the International Neuropsychological Society : JINS · 2021Article
- Interaction of maternal choline levels and prenatal Marijuana's effects on the offspring.Psychological medicine · 2020Article
- Population pharmacokinetic modeling of plasma Δ9-tetrahydrocannabinol and an active and inactive metabolite following controlled smoked cannabis administration.British journal of clinical pharmacology · 2020Article
- Substance use onset in high-risk 9-13 year-olds in the ABCD study.Neurotoxicology and teratologyArticle
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
objectiveResearch typically characterizes cannabis use by self-report of cannabis intake frequency. In an effort to better understand relationships between measures of cannabis use, we evaluated if Δ-9-tetrahydrocannabinol (THC) and metabolite concentrations (biometrics) were associated with a calibrated timeline followback (TLFB) assessment of cannabis use.
methodParticipants were 35 young adult male cannabis users who completed a calibrated TLFB measure of cannabis use over the past 30 days, including time of last use. The calibration required participants handling four plastic bags of a cannabis substitute (0.25, 0.5, 1.0, and 3.5 grams) to quantify cannabis consumed. Participants provided blood and urine samples for analysis of THC and metabolites, at two independent laboratories. Participants abstained from cannabis use on the day of sample collection. We tested Pearson correlations between the calibrated TLFB measures and cannabis biometrics.
resultsStrong correlations were seen between urine and blood biometrics (all r > .73, all p < .001). TLFB measures of times of use and grams of cannabis consumed were significantly related to each biometric, including urine 11-nor-9-carboxy-Δ9-tetrahydrocannabinol (THCCOOH) and blood THC, 11-hydroxy-THC (11-OH-THC), THCCOOH, THCCOOH-glucuronide (times of use: r > .48-.61, all p < .05; grams: r > .40-.49, all p < .05).
conclusionsThis study extends prior work to show TLFB methods significantly relate to an extended array of cannabis biometrics. The calibration of cannabis intake in grams was associated with each biometric, although the simple TLFB measure of times of use produced the strongest relationships with all five biometrics. These findings suggest that combined self-report and biometric data together convey the complexity of cannabis use, but allow that either the use of calibrated TLFB measures or biometrics may be sufficient for assessment of cannabis use in research.
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