Clinical Characteristics Associated With Stuttering Persistence: A Meta-Analysis

Area of Science:

• Pediatric Speech-Language Pathology
• Developmental Communication Disorders
• Clinical Linguistics

Background:

• Stuttering is a complex communication disorder affecting children.
• Differentiating persistent stuttering from naturally recovering stuttering is crucial for early intervention.
• Identifying predictive clinical markers aids in prognosis and treatment planning.

Purpose of the Study:

• To identify clinical characteristics that differentiate children who persist in stuttering from those who recover.
• To explore factors assessed during routine speech-language evaluations as potential prognostic markers.

Main Methods:

• A meta-analytic study synthesizing data from 11 eligible studies (41 reports).
• Inclusion criteria: young children (under 6) followed for ≥24 months, with initial clinical marker assessment and final classification (persistent vs. recovered).
• Statistical analyses included risk ratios and Hedges's g to estimate differences.

Main Results:

• Persistent stuttering was associated with older age at onset, higher stuttering-like disfluency frequency, and lower speech sound accuracy.
• Children with persistent stuttering also demonstrated poorer expressive and receptive language skills.
• Male sex and a family history of stuttering were linked to a higher likelihood of persistence.

Conclusions:

• Specific clinical characteristics are associated with an increased risk of stuttering persistence.
• These findings can inform the development of prognostic markers for stuttering.
• Further research can translate these markers into clinical tools for risk assessment.