Evidence map›Paper›PMID 39393903›Full record

ArticleJournal of neurology, neurosurgery, and psychiatry2025

Poor long-term outcomes and abnormal neurodegeneration biomarkers after military traumatic brain injury: the ADVANCE study.

Neil Sn Graham, Grace Blissitt, Karl Zimmerman, Lydia Orton, Daniel Friedland, Emma Coady, Rhiannon Laban, Elena Veleva, Amanda J Heslegrave, Henrik Zetterberg and 7 more

Abstract read
In one paragraph

Article in Journal of neurology, neurosurgery, and psychiatry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

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

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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

17 authors.

Neil Sn GrahamDepartment of Brain Sciences, Imperial College London, London, UK.ORCID http://orcid.org/0000-0002-0183-3368
Grace BlissittDepartment of Brain Sciences, Imperial College London, London, UK.
Karl ZimmermanDepartment of Brain Sciences, Imperial College London, London, UK.
Lydia OrtonDepartment of Brain Sciences, Imperial College London, London, UK.
Daniel FriedlandDepartment of Brain Sciences, Imperial College London, London, UK.
Emma CoadyAcademic Department of Military Rehabilitation, Defence Medical Rehabilitation Centre, Loughborough, UK.
Rhiannon LabanUK Dementia Research Institute at UCL, London, UK.
Elena VelevaUK Dementia Research Institute at UCL, London, UK.
Amanda J HeslegraveUK Dementia Research Institute at UCL, London, UK.ORCID http://orcid.org/0000-0002-7290-6405
Henrik ZetterbergDepartment of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Susie SchofieldNational Heart and Lung Institute, Imperial College London, London, UK.
Nicola T FearKing's Centre for Military Health Research, King's College London, London, UK.
Christopher J BoosAcademic Department of Military Rehabilitation, Defence Medical Rehabilitation Centre, Loughborough, UK.
Anthony M J BullDepartment of Bioengineering, Imperial College London, London, UK.
Alexander BennettAcademic Department of Military Rehabilitation, Defence Medical Rehabilitation Centre, Loughborough, UK.
David J SharpDepartment of Brain Sciences, Imperial College London, London, UK david.sharp@imperial.ac.uk.ORCID http://orcid.org/0000-0003-4995-2240
ADVANCE Study

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTraumatic brain injury (TBI) is common in military campaigns and is a risk factor for dementia.

methodsTBI history was ascertained in 1145 servicemen and veterans, of whom 579 had been exposed to major trauma. Functional and mental health assessments were administered, and blood samples were collected approximately 8 years postinjury, with plasma biomarkers quantified (n=1125) for NfL, GFAP, total tau, phospho-tau

resultsTBI was present in 16.9% (n=98) of exposed participants, with 46.9% classified as mild-probable and 53.1% classified as moderate to severe. Depression (β=1.65, 95% CI (1.33 to 2.03)), anxiety (β=1.65 (1.34 to 2.03)) and post-traumatic stress disorder (β=1.30 (1.19 to 1.41)) symptoms were more common after TBI, alongside poorer 6 minute walk distance (β=0.79 (0.74 to 0.84)) and quality of life (β=1.27 (1.19 to 1.36), all p<0.001). Plasma GFAP was 11% (95% CI 2 to 21) higher post-TBI (p=0.013), with greater concentrations in moderate-to-severe injuries (47% higher than mild-probable (95% CI 20% to 82%, p<0.001). Unemployment was more common among those with elevated GFAP levels post-TBI, showing a 1.14-fold increase (95% CI 1.03 to 1.27, p<0.001) for every doubling in GFAP concentration.

conclusionsTBI affected nearly a fifth of trauma-exposed personnel, related to worse mental health, motor and functional outcomes, as well as elevated plasma GFAP levels 8 years post-injury. This was absent after extracranial trauma, and showed a dose-response relationship with the severity of the injury.

Indexed as

Brain Injuries, TraumaticMilitary PersonnelAdultAmyloid beta-PeptidesBiomarkersFemaleGlial Fibrillary Acidic ProteinHumansMaleMiddle AgedNeurofilament ProteinsPeptide FragmentsStress Disorders, Post-Traumatictau ProteinsUnited KingdomVeteransAmyloid beta-PeptidesBiomarkersGFAP protein, humanGlial Fibrillary Acidic Proteinneurofilament protein LNeurofilament ProteinsPeptide Fragmentstau Proteinsdementiahead injurytraumatic brain injury

Identifiers

PMID39393903
PMCPMC11877046

What Socratic 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 Socratic graph.