Evidence map›Paper›PMID 35470456›Full record

ArticleBritish journal of clinical pharmacology2022

Concentrations of psychoactive substances in blood samples from non-fatal and fatal opioid overdoses.

Hilde Marie Erøy Edvardsen, Carl Aamodt, Stig Tore Bogstrand, Peter Krajci, Vigdis Vindenes, Eline Borger Rognli

Open access · hybridAbstract read
In one paragraph

Article in British journal of clinical pharmacology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.4field-weighted citation impact, top 20% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 9 citations in OpenAlex.

  1. Interpol review of forensic drug chemistry, 2022-2025.Forensic science international. Synergy · 2026
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Hilde Marie Erøy EdvardsenDepartment of Forensic Sciences, Oslo University Hospital, Oslo, Norway.ORCID 0000-0001-7532-2416
Carl AamodtDepartment of Substance Use Disorder Treatment, Oslo University Hospital, Oslo, Norway.
Stig Tore BogstrandDepartment of Forensic Sciences, Oslo University Hospital, Oslo, Norway.ORCID 0000-0001-8497-9014
Peter KrajciDepartment of Substance Use Disorder Treatment, Oslo University Hospital, Oslo, Norway.ORCID 0000-0001-8250-9502
Vigdis VindenesDepartment of Forensic Sciences, Oslo University Hospital, Oslo, Norway.ORCID 0000-0002-3549-3023
Eline Borger RognliDivision of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.ORCID 0000-0002-7248-3019
Oslo University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimThe primary aim was to compare concentrations of psychoactive substances in blood in non-fatal and fatal opioid overdoses. The secondary aim was to assess the concentration levels of naloxone in blood in non-fatal overdoses and the association between naloxone findings and concomitantly detected drugs. METHOD

designCase-control study.

settingNorway. Fatal overdoses from 2017 and non-fatal overdoses from February 2018 to September 2019. CASES: Thirty-one non-fatal and 160 fatal opioid overdose cases. Data from the non-fatal overdoses were collected from hospital records and blood samples, and data from the fatal overdoses were collected from autopsy reports. Concentrations of psychoactive substances (including ethanol) in blood samples were collected at the time of hospital admission for the non-fatal overdoses and during autopsy for the fatal overdoses.

resultsThe median number of different substances detected was four for fatal and five for non-fatal overdoses. The fatal overdoses had higher pooled concentrations of opioids (188 vs 57.2 ng/mL, P < .001), benzodiazepines (5467 vs 2051 ng/mL, P = .005) and amphetamines (581 vs 121 ng/mL, P < .001) than the non-fatal overdoses. A linear relationship between naloxone and concomitant pooled opioid concentrations was found (95% confidence interval = 0.002-0.135, P < .05).

conclusionThe total load of drug concentrations was associated with the fatal outcome of an overdose, while the number of drugs used, to a lesser extent, differentiated between those who survived and those who died from an overdose. Higher opioid concentrations were associated with treatment with higher naloxone doses.

Indexed as

Drug OverdoseOpiate OverdoseAnalgesics, OpioidCase-Control StudiesHumansNaloxoneNarcotic AntagonistsAnalgesics, OpioidNaloxoneNarcotic Antagonistsamphetaminesbenzodiazepinesdrug concentrationsnaloxonenon-fatal overdoseopioid overdoseopioidsoverdose death

Identifiers

PMID35470456
PMCPMC9543683
OpenAlexW4224623363

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.