Alan Martin Emond

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OBJECTIVE To calculate the prevalence of developmental coordination disorder at 7 years of age by using Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition criteria in a large UK birth cohort. METHODS Cases of developmental coordination disorder were defined by using data from the Avon Longitudinal Study of Parents and Children, a UK(More)
Using data on 4,813 children from the ALSPAC cohort in Bristol, United Kingdom, recontacted in 1998-1999, the authors investigated whether intrauterine growth restriction (indexed by birth weight and length) was associated with behavioral problems at age 7 years. Childhood behavioral problems were measured by using a brief behavioral screening questionnaire(More)
A questionnaire study of Jamaican patients with homozygous sickle cell (SS) disease indicated a 42% prevalence of priapism, with a median age at onset of 21 years. Two predominantly different patterns of priapism were recorded: short "stuttering" episodes lasting less than three hours, with normal consequent sexual function, and severe prolonged attacks(More)
OBJECTIVE To investigate the feeding, diet and growth of young children with autism spectrum disorders (ASD). METHOD Data on feeding and food frequency were collected by questionnaires completed at 6, 15, 24, 38 and 54 months by participants in the Avon Longitudinal Study of Parents and Children. A food variety score was created, and the content of the(More)
OBJECTIVE To chart the emergence of precursors and early signs of autism spectrum disorder (ASD) and autistic traits in the Avon Longitudinal Study of Parents and Children, a prospective longitudinal cohort study of the surviving offspring of 14,541 pregnant women from southwestern England with an expected delivery date between April 1991 and December 1992.(More)
Of a cohort of 308 children with homozygous sickle cell disease diagnosed at birth, 89 experienced 132 clinically significant attacks of acute splenic sequestration (ASS) over a 10-year period. The age at first attack ranged from 3 months to 6 years. Survival curve analysis of the interval until first attack indicated a cumulative probability of 0.225 by 2(More)
OBJECTIVE To investigate the psychological problems associated with bedwetting and combined (day and night) wetting in children aged around 7(1/2) years. METHODS Participants were a cohort of over 8000 children enrolled in the population-based Avon Longitudinal Study of Parents and Children. Parents completed postal questionnaires assessing common(More)
OBJECTIVE The proportion of schoolchildren with mild social communicative deficits far exceeds the number diagnosed with an autistic spectrum disorder (ASD). We aimed to ascertain both the population distribution of such deficits and their association with functional adaptation and cognitive ability in middle childhood. METHOD The parent-report Social and(More)
The aim of this study was to determine the prevalence of autistic spectrum disorder (ASD) within a large representative population sample: the Avon Longitudinal Study of Parents and Children (ALSPAC). Cases of ASD were identified from the clinical notes of children in the ALSPAC with a suspected developmental disorder and from the Pupil Level Annual Schools(More)
Previous studies have identified possible neighbourhood-level influences on the risk of injuries to preschool children, but none have had sufficient data at both household and area level to explain these neighbourhood effects. We used data from the Avon Longitudinal Study of Parents and Children, which recruited over 14,062 children at birth in the former(More)