Evidence map›Paper›PMID 40353977›Full record

ArticleEuropean journal of epidemiology2025

Maternal cannabis use in pregnancy, perinatal outcomes, and cognitive development in offspring: a longitudinal analysis of the ALSPAC cohort using paternal cannabis use as a negative control exposure.

Daniel J Corsi, Tim T Morris, Zoe E Reed, George Davey Smith

Abstract read
In one paragraph

Article in European journal of epidemiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Clinical practice guideline "preconception care".Archives of gynecology and obstetrics · 2026
    Guideline
  2. Article
  3. Review
  4. Endocrine Disruption and Male Fertility.Current environmental health reports · 2026
    Review
  5. Article
  6. 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

4 authors.

Daniel J CorsiFaculty of Medicine, School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada. dcorsi@cheo.on.ca.ORCID http://orcid.org/0000-0001-7063-3354
Tim T MorrisCentre for Longitudinal Studies, Social Research Institute, University College London, London, UK.
Zoe E ReedMRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK.
George Davey SmithMRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Maternal cannabis use in pregnancy is reported to be associated with perinatal and neurodevelopmental outcomes in offspring. Such associations, however, may be biased by residual confounding by socioeconomic position (SEP). To assess confounding, we use paternal cannabis use in pregnancy as a negative control exposure. We use data from 15,013 mother-father-child trios from the ALSPAC birth cohort, with participants initially recruited between 1990 and 1992. Exposures were maternal and paternal cannabis use during pregnancy. Neonatal anthropometry, perinatal, cognitive, and neurodevelopmental outcomes were modelled as a function of maternal and paternal cannabis use in pregnancy, adjusting for household-level SEP markers and maternal and paternal tobacco, alcohol, and drug use in pregnancy. We compared the strength of the association between maternal and paternal cannabis on outcomes using Wald tests. 5 and 13% of mothers and fathers reported cannabis use, which was inversely related to measures of SEP. Maternal cannabis use during pregnancy was associated with decreased infant birth weight (b = - 110.2 g, 95% CI - 185.1 to - 35.3 for any cannabis use) and length (b = - 0.45 cm, 95% CI - 0.84 to - 0.07). Maternal cannabis during pregnancy was also associated with neonatal special care admission (odds ratio 1.64, 95% CI 1.05 to 2.56) and lower education achievement scores at age 16 (b = - 19.2, 95% CI - 32.0 to - 6.3). Maternal cannabis use in pregnancy was modestly associated with perinatal outcomes and markers of cognitive development. However, most associations were attenuated after controlling for potential confounders, including SEP, and associations were not quantitatively different from paternal cannabis use. The association of maternal cannabis use in pregnancy with perinatal or cognitive outcomes in offspring may be driven by residual confounding, including SEP, rather than causal biological effects.

Indexed as

Child DevelopmentCognitionFathersMarijuana UsePrenatal Exposure Delayed EffectsAdultBirth WeightCannabisFemaleHumansInfant, NewbornLongitudinal StudiesMaleMothersPregnancyPregnancy OutcomeALSPACCannabisCognitive developmentEpidemiologyNeurodevelopmentPerinatalPregnancySubstance use

Identifiers

PMID40353977
PMCPMC12170737

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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.