Evidence map›Paper›PMID 26928125›Full record

ArticlePloS one2016

Relationships between Head Circumference, Brain Volume and Cognition in Children with Prenatal Alcohol Exposure.

Sarah Treit, Dongming Zhou, Albert E Chudley, Gail Andrew, Carmen Rasmussen, Sarah M Nikkel, Dawa Samdup, Ana Hanlon-Dearman, Christine Loock, Christian Beaulieu

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
15.7field-weighted citation impact, top 1% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 108 citations in OpenAlex.

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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

10 authors at 6 institutions in 1 country.

Sarah TreitNeuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada.
Dongming ZhouDepartment of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada.
Albert E ChudleyDepartments of Pediatrics and Child Health and Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba, Canada.
Gail AndrewDepartment of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.
Carmen RasmussenDepartment of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.
Sarah M NikkelDepartment of Pediatrics, University of Ottawa, Ottawa, Ontario, Canada.
Dawa SamdupDepartment of Pediatrics, Queens University, Kingston, Ontario, Canada.
Ana Hanlon-DearmanDepartment of Pediatrics and Child Health, University of Manitoba, Winnipeg, Manitoba, Canada.
Christine LoockDepartment of Pediatrics, University of British Columbia and Sunny Hill Health Centre for Children, Vancouver, British Columbia, Canada.
Christian BeaulieuNeuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada.
University of Alberta · CAUniversity of Manitoba · CAWomen and Children’s Health Research Institute · CAQueen's University · CASunny Hill Health Centre for Children · CAUniversity of Ottawa · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

Head circumference is used together with other measures as a proxy for central nervous system damage in the diagnosis of fetal alcohol spectrum disorders, yet the relationship between head circumference and brain volume has not been investigated in this population. The objective of this study is to characterize the relationship between head circumference, brain volume and cognitive performance in a large sample of children with prenatal alcohol exposure (n = 144) and healthy controls (n = 145), aged 5-19 years. All participants underwent magnetic resonance imaging to yield brain volumes and head circumference, normalized to control for age and sex. Mean head circumference, brain volume, and cognitive scores were significantly reduced in the prenatal alcohol exposure group relative to controls, albeit with considerable overlap between groups. Males with prenatal alcohol exposure had reductions in all three measures, whereas females with prenatal alcohol exposure had reduced brain volumes and cognitive scores, but no difference in head circumference relative to controls. Microcephaly (defined here as head circumference ≤ 3rd percentile) occurred more often in prenatal alcohol exposed participants than controls, but 90% of the exposed sample had head circumferences above this clinical cutoff indicating that head circumference is not a sensitive marker of prenatal alcohol exposure. Normalized head circumference and brain volume were positively correlated in both groups, and subjects with very low head circumference typically had below-average brain volumes. Conversely, over half of the subjects with very low brain volumes had normal head circumferences, which may stem from differential effects of alcohol on the skeletal and nervous systems. There were no significant correlations between head circumference and any cognitive score. These findings confirm group-level reductions in head circumference and increased rates of microcephaly in children with prenatal alcohol exposure, but raise concerns about the predictive value of this metric at an individual-subject level.

Indexed as

CognitionAdolescentAge FactorsBrainChildChild, PreschoolFemaleFetal Alcohol Spectrum DisordersHeadHumansMaleMicrocephalyOrgan SizeYoung Adult

Identifiers

PMID26928125
PMCPMC4771159
OpenAlexW2290797956

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.