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OBJECTIVES Our goals were to document (1) the onset of stuttering and (2) whether specific child, family, or environmental factors predict stuttering onset in children aged up to 3 years. METHODS Participants included a community-ascertained cohort of 1619 2-year-old Australian children recruited at 8 months of age to study the longitudinal development of(More)
BACKGROUND Knowledge is scarce on what contributes to whether children with early language delay (LD) show persistent, recovering or sometimes late-onset LD without a prior history of early LD in subsequent preschool years. AIMS To explore whether an integrative model of vital risk factors, including poor early communication skills, family history of(More)
OBJECTIVES To document the natural history of stuttering by age 4 years, including (1) cumulative incidence of onset, (2) 12-month recovery status, (3) predictors of stuttering onset and recovery, and (4) potential comorbidities. The study cohort was a prospective community-ascertained cohort (the Early Language in Victoria Study) from Melbourne, Australia,(More)
OBJECTIVE To quantify the contributions of child, family, and environmental predictors to language ability at 4 years. METHODS A longitudinal study was performed with a sample of 1910 infants recruited at 8 months in Melbourne, Australia. Predictors were child gender, prematurity, birth weight and order, multiple birth, socioeconomic status, maternal(More)
AIM The epidemiology of preschool speech sound disorder is poorly understood. Our aims were to determine: the prevalence of idiopathic speech sound disorder; the comorbidity of speech sound disorder with language and pre-literacy difficulties; and the factors contributing to speech outcome at 4 years. METHOD One thousand four hundred and ninety-four(More)
The purpose of the present study was to examine the grammatical morphology and sentence imitation performance of two different groups of children with language impairment and to compare their performance with that of children learning language typically. Expressive use of tense-bearing and non-tense-related grammatical morphemes was explored. Children with(More)
OBJECTIVES This study investigated predictors of delayed language development at 18 months of age in a large population cohort of Norwegian toddlers. METHODS Data were analyzed on 42,107 toddlers. Language outcome at age 18 months was measured using a standard parent report instrument, the Ages and Stages Questionnaire, communication scale. Confirmatory(More)
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(More)
BACKGROUND Parent report instruments are frequently used for the identification of both 'at-risk' children and to support the diagnosis of communication delay. Whilst the evidence is strong for the accuracy of parent report of vocabulary between 2 and 3 years, there are fewer studies that have considered the ability of parents to report on early(More)
AIM To describe changes in infant prelinguistic communication skills between 8 and 12 months, and identify factors associated with those skills. METHODS DESIGN Parent questionnaire data for a prospective population-based cohort of infants in metropolitan Melbourne, Australia. PARTICIPANTS 1911 infants born November 2002-August 2003. OUTCOME Infant(More)