Toward Preventing Speech and Language Disorders of Known Genetic Origin: First Post-Intervention Results of Babble Boot Camp in Children With Classic Galactosemia.
Beate Peter, Jennifer Davis, Sarah Cotter and 12 others
PMID 34665663WHAT IT FOUND
Infants with classic galactosemia receiving early parent-coached speech intervention showed faster growth in babble complexity and larger expressive vocabularies than untreated peers.
At follow-up, most treated children had typical articulation and language scores, unlike untreated controls.
Key findings
01Treated children showed significantly steeper growth in babble complexity and meaningful speech sound production than the single untreated control child.
02Treated children had significantly higher expressive vocabulary scores than the untreated control, but receptive vocabulary scores did not differ.
03At follow-up, 11 of 12 treated children had typical articulation scores and all had typical language scores, which was better than expected for this condition.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
The sample size is very small, particularly for the untreated control group (only one child with complete data through 24 months). Recruitment and enrollment are ongoing, and the study is a pilot/interim report rather than a completed trial. The untreated control group was replaced by a delayed-entry group for retention reasons, meaning the comparison is not a true concurrent untreated control for all time points. The study cannot determine if the benefits came from the early babble-focused phase or the later language-focused phase, or both. Participants were predominantly White and from families with high educational attainment, limiting generalizability.
Declared interests
The study was supported by a National Institute of Child Health and Human Development grant. No conflicts of interest are reported in the provided text.
The easy way to misread this
Do not interpret the typical outcomes in treated children as proof that the intervention prevents disorders in all cases. The untreated group was extremely small (n=1 for main comparisons), and the study is an interim report with ongoing recruitment, so the results are suggestive but not definitive evidence of efficacy.