Factors affecting vocabulary acquisition at age 2 in children born between 23 and 28 weeks' gestation
Marston, Louise, Peacock, Janet L., Calvert, Sandra A., Greenough, Anne and Marlow, Neil (2007) Factors affecting vocabulary acquisition at age 2 in children born between 23 and 28 weeks' gestation. Developmental Medicine & Child Neurology, 49, (8), 591-596. (doi:10.1111/j.1469-8749.2007.00591.x).
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Language development is often slower in preterm children compared with their term peers. We investigated factors associated with vocabulary acquisition at 2 years in a cohort of children born at 28 weeks' gestation or less. For children entered into the United Kingdom Oscillation Study, language development was evaluated by using the MacArthur-Bates Communicative Development Inventories score, completed by parents as part of a developmental questionnaire. The effect of demographic, neonatal, socioeconomic factors, growth, and disability were investigated using multifactorial random effects modelling. Questionnaires were returned by 288 participants (148 males, 140 females). The mean number of words vocalized was 42 (SD 29). Multifactorial analysis showed only four factors were significantly associated with vocabulary acquisition. These were: (1) level of disability (mean words: no disability, 45; other disability, 38; severe disability, 30 [severe disability is defined as at least one extreme response in one of the following clinical domains: neuromotor, vision, hearing, communication, or other physical disabilities]; 95% confidence interval [CI] for the difference between no and severe disability 7- 23); (2) sex (39 males, 44 females; 95% CI 0.4-11); (3) length of hospital stay (lower quartile, 47; upper quartile, 38; 95% CI -12 to -4); and (4) weight SD score at 12 months (lower quartile, 39; upper quartile, 44; 95% CI 1-9). There was no significant association between gestational age and vocabulary after multifactorial analysis. There was no significant effect of any socioeconomic factor on vocabulary acquisition. We conclude that clinical factors, particularly indicators of severe morbidity, dominate the correlates of vocabulary acquisition at age 2 in children born very preterm.
|Keywords:||analysis, sex, language development, male, confidence intervals, questionnaires, disability evaluation, communication, socioeconomic factors, cohort studies, child, disability,preschool, health, physiology|
|Subjects:||R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
R Medicine > RJ Pediatrics > RJ101 Child Health. Child health services
|Divisions:||University Structure - Pre August 2011 > School of Medicine > Clinical Neurosciences
University Structure - Pre August 2011 > School of Medicine > Community Clinical Sciences
University Structure - Pre August 2011 > School of Medicine
|Date Deposited:||09 Sep 2008|
|Last Modified:||01 Jun 2011 15:01|
|Contributors:||Marston, Louise (Author)
Peacock, Janet L. (Author)
Calvert, Sandra A. (Author)
Greenough, Anne (Author)
Marlow, Neil (Author)
|Date:||16 July 2007|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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