Preliminary validation of the coma recovery scale for pediatrics in typically developing young children

Area of Science:

• Pediatric Neurology
• Neurorehabilitation
• Psychometrics

Background:

• Disorders of Consciousness (DoC) in young children require specialized assessment tools.
• The Coma Recovery Scale-Revised (CRS-R) is a standard for adults but needs adaptation for pediatric populations.
• Validating psychometric properties is crucial for reliable clinical use.

Purpose of the Study:

• To evaluate the psychometric properties of a modified CRS-R for pediatric use, named the Coma Recovery Scale for Pediatrics (CRS-P).
• To assess the reliability and age-appropriateness of the CRS-P in typically developing young children.
• To determine the CRS-P's ability to identify emergence to a conscious state (CS) in pediatric patients.

Main Methods:

• The CRS-R was adapted into the CRS-P.
• The CRS-P was administered to 33 typically developing children aged 8-59 months.
• Inter-rater reliability, total and subtest scores, and performance on key emergence items (functional object use, functional communication) were analyzed.

Main Results:

• The CRS-P demonstrated adequate inter-rater reliability (K_w = .87-1.00) across subscales.
• Performance on the CRS-P, including emergence to CS indicators, strongly correlated with chronological age.
• Specific age thresholds were identified for functional object use (≥12 months) and functional communication (≥3 years).

Conclusions:

• The CRS-P is a psychometrically sound instrument suitable for assessing children as young as 12 months.
• The CRS-P effectively measures emergence to a conscious state (CS), a critical milestone in pediatric DoC recovery.
• Age-based performance norms support the CRS-P's utility in clinical settings for pediatric DoC assessment.