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Predicting language at 2 years of age: a prospective community study

Reilly, Sheena, Wake, Melissa, Bavin, Edith L., Prior, Margot, Williams, Joanne, Bretherton, Lesley, Eadie, Patricia, Barrett, Yin and Ukoumunne, Obioha C. 2007, Predicting language at 2 years of age: a prospective community study, Pediatrics, vol. 120, no. 6, pp. e1441-e1449, doi: 10.1542/peds.2007-0045.

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Title Predicting language at 2 years of age: a prospective community study
Author(s) Reilly, Sheena
Wake, Melissa
Bavin, Edith L.
Prior, Margot
Williams, JoanneORCID iD for Williams, Joanne
Bretherton, Lesley
Eadie, Patricia
Barrett, Yin
Ukoumunne, Obioha C.
Journal name Pediatrics
Volume number 120
Issue number 6
Start page e1441
End page e1449
Total pages 9
Publisher American Academy of Pediatrics
Place of publication Elk Grove Village, Ill.
Publication date 2007-12
ISSN 1098-4275
Keyword(s) Child, Preschool
Language Development
Language Development Disorders
Prospective Studies
Risk Factors
Summary OBJECTIVE: This article responds to evidence gaps regarding language impairment identified by the US Preventive Services Task Force in 2006. We examine the contributions of putative child, family, and environmental risk factors to language outcomes at 24 months of age. METHODS: A community-ascertained sample of 1720 infants who were recruited at 8 months of age were followed at ages 12 and 24 months in a prospective, longitudinal study in metropolitan Melbourne, Australia. Outcomes at 24 months were parent-reported infant communication (Communication and Symbolic Behavior Scales and MacArthur-Bates Communicative Development Inventories vocabulary production score). Putative risk factors were gender, preterm birth, birth weight, multiple birth, birth order, socioeconomic status, maternal mental health, maternal vocabulary and education, maternal age at birth of child, non-English-speaking background, and family history of speech-language difficulties. Linear regression models were fitted to total standardized Communication and Symbolic Behavior Scales and Communicative Development Inventories vocabulary production scores; a logistic regression model was fitted to late-talking status at 24 months. RESULTS: The regression models accounted for 4.3% and 7.0% of the variation in the 24-month Communication and Symbolic Behavior Scales and Communicative Development Inventories scores, respectively. Male gender and family history were strongly associated with poorer outcomes on both instruments. Lower Communication and Symbolic Behavior Scales scores were also associated with lower maternal vocabulary and older maternal age. Lower vocabulary production scores were associated with birth order and non-English-speaking background. When the 12-month Communication and Symbolic Behavior Scales Total score was added as a covariate in the linear regression of 24-month Communication and Symbolic Behavior Scales Total score, it was by far the strongest predictor. CONCLUSIONS: These early risk factors explained no more than 7% of the variation in language at 24 months. They seem unlikely to be helpful in screening for early language delay.
Language eng
DOI 10.1542/peds.2007-0045
Field of Research 111704 Community Child Health
11 Medical And Health Sciences
17 Psychology And Cognitive Sciences
Socio Economic Objective 920501 Child Health
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2007, American Academy of Pediatrics
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Document type: Journal Article
Collection: School of Health and Social Development
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