The Rivermead Post Concussion Symptoms Questionnaire: a confirmatory factor analysis.

Area of Science:

• Neuroscience
• Psychology
• Rehabilitation Medicine

Background:

• Traumatic brain injury (TBI) can lead to persistent post-concussion symptoms (PCS).
• The Rivermead Post Concussion Symptoms Questionnaire (RPQ) is commonly used to assess these symptoms.
• Understanding the factor structure of the RPQ is crucial for accurate diagnosis and management.

Purpose of the Study:

• To examine the underlying factor structure of the RPQ in individuals with TBI.
• To determine if PCS can be categorized into distinct symptom clusters.

Main Methods:

• Structural equation modeling was used to analyze RPQ data from 168 TBI patients.
• The study evaluated one-factor, two-factor, and three-factor models of PCS.

Main Results:

• A three-factor model, comprising cognitive, emotional, and somatic symptoms, demonstrated good fit.
• High covariation was observed between these factors.
• A two-factor model combining emotional and somatic symptoms also showed acceptable fit, while a one-factor model was inadequate.

Conclusions:

• Post-concussion symptoms represent a constellation of related cognitive, emotional, and somatic experiences.
• While separable, these symptom categories exhibit significant overlap.
• The findings support the RPQ's utility in clinical practice, with suggested classification bands for symptom severity.