Evidence map›Paper›PMID 29443414›Full record

ArticleAddiction (Abingdon, England)2018

Neonatal outcomes after fetal exposure to methadone and buprenorphine: national registry studies from the Czech Republic and Norway.

Blanka Nechanská, Viktor Mravčík, Svetlana Skurtveit, Ingunn Olea Lund, Roman Gabrhelík, Anders Engeland, Marte Handal

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Addiction (Abingdon, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
9.4field-weighted citation impact, top 2% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Opioids affect the fetal brain: reframing the detoxification debate.American journal of obstetrics and gynecology · 2019
    Article
  5. Observational
  6. Article
  7. Article
  8. Article
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

7 authors at 2 institutions in 2 countries.

Blanka NechanskáDepartment of Addictology, First Faculty of Medicine, Charles University, Prague, Czech Republic.ORCID 0000-0001-8172-6089
Viktor MravčíkDepartment of Addictology, First Faculty of Medicine, Charles University, Prague, Czech Republic.ORCID 0000-0001-5062-5744
Svetlana SkurtveitNorwegian institute of Public Health, Oslo, Norway.ORCID 0000-0001-7525-9701
Ingunn Olea LundNorwegian institute of Public Health, Oslo, Norway.ORCID 0000-0001-7412-4776
Roman GabrhelíkDepartment of Addictology, First Faculty of Medicine, Charles University, Prague, Czech Republic.ORCID 0000-0002-7672-3753
Anders EngelandNorwegian institute of Public Health, Oslo, Norway.ORCID 0000-0001-5620-9207
Marte HandalNorwegian institute of Public Health, Oslo, Norway.ORCID 0000-0003-1773-0184
Norwegian Institute of Public Health · NOCharles University · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsOpioid maintenance treatment (OMT) is recommended to opioid-dependent females during pregnancy. However, it is not clear which medication should be preferred. We aimed to compare neonatal outcomes after prenatal exposure to methadone (M) and buprenorphine (B) in two European countries.

designNation-wide register-based cohort study using personalized IDs assigned to all citizens for data linkage.

settingThe Czech Republic (2000-14) and Norway (2004-13). [Correction added after online publication on 26 April 2018: The Czech Republic (2000-04) corrected to (2000-14).]

participantsOpioid-dependent pregnant Czech (n = 333) and Norwegian (n = 235) women in OMT who received either B or M during pregnancy and their newborns. MEASUREMENTS: We linked data from health registries to identify the neonatal outcomes: gestational age, preterm birth, birth weight, length and head circumference, small for gestational age, miscarriages and stillbirth, neonatal abstinence syndrome (NAS) and Apgar score. We performed multivariate linear regression and binary logistic regression to explore the associations between M and B exposure and outcomes. Regression coefficient (β) and odds ratio (OR) were computed.

findingsMost neonatal outcomes were more favourable after exposure to B compared with M, but none of the differences was statistically significant. For instance, in the multivariate analysis, birth weight was β = 111.6 g [95% confidence interval (CI) = -10.5 to 233.6 and β = 83.1 g, 95% CI = -100.8 to 267.0] higher after B exposure in the Czech Republic and Norway, respectively. Adjusted OR of NAS for B compared with M was 0.94 (95% CI = 0.46-1.92) in the Norwegian cohort.

conclusionsTwo national cohorts of women receiving opioid maintenance treatment during pregnancy showed small but not statistically significant differences in neonatal outcomes in favour of buprenorphine compared with methadone.

Indexed as

Abortion, SpontaneousAdultAnalgesics, OpioidApgar ScoreBuprenorphineCzech RepublicFemaleGestational AgeHumansInfant, NewbornInfant, Small for Gestational AgeLinear ModelsLogistic ModelsMaleMethadoneNeonatal Abstinence SyndromeAnalgesics, OpioidBuprenorphineMethadoneBuprenorphinehealth registriesmethadoneneonatal outcomesopioid maintenance treatmentprenatal exposure

Identifiers

PMID29443414
PMCPMC6221017
OpenAlexW2790705640

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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.