Evidence map›Paper›PMID 26719482›Full record

ArticleThe British journal of general practice : the journal of the Royal College of General Practitioners2016

Persistent problems 1 year after mild traumatic brain injury: a longitudinal population study in New Zealand.

Alice Theadom, Varsha Parag, Tony Dowell, Kathryn McPherson, Nicola Starkey, Suzanne Barker-Collo, Kelly Jones, Shanthi Ameratunga, Valery L Feigin, BIONIC Research Group

Abstract readMulticenter Study
PubMed Full text at PMC Publisher
In one paragraph

Article in The British journal of general practice : the journal of the Royal College of General Practitioners, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed, 5 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

94 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
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  6. Trial
  7. Memory Perfectionism is Associated with Persistent Memory Complaints after Concussion.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2022
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  16. Subjective Cognitive Complaints in Mild Traumatic Brain Injury: Association with Cognitive Test Performance and Protective Psychological Factors.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2025
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  19. Review
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34 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Alice TheadomNational Institute for Stroke and Applied Neuroscience;
Varsha ParagNational Institute for Health Innovation;
Tony DowellPrimary Health Care and General Practice, University of Otago, Wellington, New Zealand.
Kathryn McPhersonPerson Centred Research Centre, Health and Rehabilitation Institute; Auckland University of Technology, Auckland, New Zealand.
Nicola StarkeySchool of Psychology, University of Waikato, Hamilton, New Zealand.
Suzanne Barker-ColloSchool of Psychology;
Kelly JonesNational Institute for Stroke and Applied Neuroscience;
Shanthi AmeratungaSchool of Population Health; University of Auckland, Auckland, New Zealand.
Valery L FeiginNational Institute for Stroke and Applied Neuroscience;
BIONIC Research Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMild traumatic brain injury (mTBI) is a common problem in general practice settings, yet previous research does not take into account those who do not attend hospital after injury. This is important as there is evidence that effects may be far from mild.

aimTo determine whether people sustain any persistent effects 1 year after mTBI, and to identify the predictors of health outcomes. DESIGN AND

settingA community-based, longitudinal population study of an mTBI incidence cohort (n = 341) from a mixed urban and rural region (Hamilton and Waikato Districts) of the North Island of New Zealand (NZ).

methodAdults (>16 years) completed assessments of cognitive functioning, global functioning, post-concussion symptoms, mood, and quality of life over the year after injury.

resultsNearly half of participants (47.9%) reported experiencing four or more post-concussion symptoms 1 year post-injury. Additionally, 10.9% of participants revealed very low cognitive functioning. Levels of anxiety, depression, or reduced quality of life were comparable with the general population. Having at least one comorbidity, history of brain injury, living alone, non-white ethnic group, alcohol and medication use, and being female were significant predictors of poorer outcomes at 12 months.

conclusionAlthough some people make a spontaneous recovery after mTBI, nearly half continue to experience persistent symptoms linked to their injury. Monitoring of recovery from mTBI may be needed and interventions provided for those experiencing persistent difficulties. Demographic factors and medical history should be taken into account in treatment planning.

Indexed as

Population SurveillanceQuality of LifeAdolescentAdultAnxietyBrain ConcussionDepressionFemaleFollow-Up StudiesHumansIncidenceMaleNew ZealandTime Factorsepidemiologyhead injurymild traumatic brain injuryoutcomeprediction

Identifiers

PMID26719482
PMCPMC4684031

What OpenQuestion holds

Textmetadata
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.