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Persistent Postconcussion Symptoms After Injury.

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Preinjury factors like mood, family discord, and lower income increase the risk of persistent postconcussion symptoms (PCSs) in children after mild traumatic brain injury (mTBI). Female sex and adolescence also contribute to PCS vulnerability.

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Area of Science:

  • Pediatric neurology
  • Neuroscience
  • Public health

Background:

  • Postconcussion symptoms (PCSs) can persist long after mild traumatic brain injury (mTBI) in children.
  • Understanding factors influencing PCS chronicity is crucial for effective intervention and management.
  • Previous research has not fully elucidated the interplay of preinjury, demographic, and family factors in pediatric PCS development.

Purpose of the Study:

  • To investigate preinjury, demographic, and family factors associated with persistent PCSs in children following mild traumatic brain injury (mTBI).
  • To identify predictors of PCSs at 3, 6, and 12 months post-injury across different age groups.
  • To examine risk and protective factors for chronic PCSs one year after injury.

Main Methods:

  • Prospective, longitudinal cohort study of children with mTBI (n=119), complicated mTBI (cmTBI) (n=110), or orthopedic injury (OI) (n=118).
  • Caregiver surveys collected preinjury demographic, child, and family characteristics.
  • Validated rating scales assessed PCSs; multivariable regression models analyzed predictors of PCS trajectories and chronic PCSs.

Main Results:

  • PCSs were similar in mTBI and cmTBI groups, and elevated compared to OI. Trajectories varied by age and sex, with adolescents showing improvement and young children less change.
  • Girls and adolescents experienced higher PCSs than boys and younger children, respectively. Vulnerability factors included female sex, adolescence, preinjury mood issues, lower income, and family discord.
  • PCSs persisted in 25-31% of the mTBI group at 1 year. Chronic PCSs were nearly twice as likely in girls and over four times as likely in young children with cmTBI versus mTBI.

Conclusions:

  • A significant minority of children experience persistent PCSs one year after mTBI or OI.
  • Preinjury mood problems, lower socioeconomic status, family discord, female sex, and adolescence are key risk factors for persistent PCSs.
  • Social capital may act as a protective factor, highlighting the importance of supportive environments in pediatric TBI recovery.