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Kerala Brain Injury Questionnaire: Feasibility, Reliability, and Validation Study.

Anne F Ambrose1, Dristi Adhikari2, V G Pradeep Kumar3

  • 1Department of Neurology, Renaissance School of Medicine, Stony Brook, NY, USA.

Neurology India
|November 11, 2025
PubMed
Summary
This summary is machine-generated.

The Kerala Brain Injury Questionnaire (KBIQ) effectively screens for chronic post-mild traumatic brain injury (mTBI) symptoms in older Indian adults. This reliable tool aids in early detection of potential health issues in community settings.

Keywords:
Concussionepidemiologyscreeningtraumatic brain injury

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Area of Science:

  • Neurology
  • Geriatrics
  • Public Health

Background:

  • Mild traumatic brain injury (mTBI) can lead to lasting neurological issues and cognitive decline in later life.
  • Identifying post-mTBI symptoms in elderly populations, particularly in low-income countries like India, is often insufficient.
  • India has a high incidence of traumatic brain injury (TBI), necessitating a dedicated screening tool.

Purpose of the Study:

  • To develop the Kerala Brain Injury Questionnaire (KBIQ) for assessing post-mild traumatic brain injury (mTBI) or postconcussive symptoms.

Main Methods:

  • The study evaluated the Kerala Brain Injury Questionnaire's (KBIQ) feasibility, reliability, and validity within the Kerala Einstein Study (KES) in India.
  • The KBIQ assessed clinical symptoms potentially linked to mTBI over the preceding month.
  • Principal component analysis was employed to define the KBIQ's structure.

Main Results:

  • The KBIQ was completed by 682 participants (mean age 68.5 years) without dementia; 14.9% reported a history of mTBI.
  • The questionnaire exhibited high acceptability and response rates, with no administration issues reported.
  • The KBIQ demonstrated strong internal consistency and good validity when compared against mTBI history, revealing a six-component structure.

Conclusions:

  • The Kerala Brain Injury Questionnaire (KBIQ) is a dependable and valid method for assessing chronic postconcussive symptoms in elderly Indian individuals.
  • Its usability by nonclinicians makes the KBIQ suitable for broad community-based case detection.
  • The KBIQ can serve as a prescreening tool, assisting clinicians in identifying potentially undiagnosed health conditions.