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Gestational diabetes hinders language development in offspring.

Ginette Dionne¹, Michel Boivin, Jean R Séguin

¹Research Unit on Psychosocial Maladjustment in Children, bSchool of Psychology, Laval University, Quebec City, Quebec, Canada. ginette.dionne@psy.ulaval.ca

|November 4, 2008

Summary

This summary is machine-generated.

Gestational diabetes negatively impacts children's expressive language development into middle childhood. Maternal education and genetics play a role in mitigating these effects in infants of diabetic mothers.

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Area of Science:

Developmental psychology
Pediatric health
Genetics

Background:

Previous research suggests language development may be affected in infants of diabetic mothers.
Systematic investigations into this link have been lacking.

Purpose of the Study:

To compare language outcomes in infants of diabetic mothers versus controls from 18 months to 7 years.
To identify factors that may moderate the impact of gestational diabetes on child language.

Main Methods:

A case-control longitudinal study utilizing two birth cohorts (Quebec Longitudinal Study of Child Development and Quebec Newborn Twin Study).
Language development was assessed using standardized tests (e.g., McArthur CDI, PPVT) and teacher-based evaluations (EDI) at multiple time points from 18 months to 7 years.
Analyses controlled for gender, socioeconomic status, and perinatal factors.

Main Results:

Infants of diabetic mothers showed significantly lower expressive language scores at 18, 30, and 72/84 months compared to controls.
Children exposed to gestational diabetes were 2.2 times more likely to have a language impairment.
Both genetic factors and maternal education level were found to moderate the effect of gestational diabetes on expressive language.

Conclusions:

Gestational diabetes adversely affects expressive language development in children through middle childhood.
Genetic factors are strongly linked to language delay risk in infants of diabetic mothers.
Higher maternal education appears to offer a protective effect against language deficits in this population.