Maternal immigration is associated with substantial increased risk of autism-spectrum disorders with differential risk according to different region of birth and possibly ethnicity.

Despite longstanding clinical experience of unusual feeding difficulties in children with autism, there is no published literature describing their association with early onset FTT. This paper examines literature that may link feeding problems and abnormal growth with developmental and psychiatric conditions and describes seven cases of children with autism, who showed growth failure caused by severe feeding problems starting in the first year of life. Inadequacies in existing classifications systems are highlighted. The presence of severe or atypical feeding problems and FTT in infancy should alert professionals to possible underlying ASD. The aetiology of feeding disorders in autism appears to involve an unusually complex interactional model with biological vulnerabilities due to dysfunction in sensory, cognitive and emotional response interacting with dysfunctional attachment and learnt behaviours to produce a severe and intractable problem. Effective treatment therefore requires a novel multifaceted approach that can address each of these areas.

The mean weights of the sample differ considerably from those of the Gairdner and Pearson chart which are, therefore, considered to be inappropriate for the Sheffield population.

This study analyses the prevalence of ASD, comorbidity, educational provision and ability in autistic children in a single health district, born between 1983 and 1996. The number of recorded diagnoses doubled over a 4 year period. This appeared to be due to greater recognition of ASD in more able children, in children initially presenting with ADHD, and possibly in females. ADHD accounted for a substantial proportion of comorbidity. Age at diagnosis appeared to be related to school placement. Cognitive ability levels ranging from more than three standard deviations below the mean to more than one standard deviation above the mean were found in the moderate and severe learning difficulty school population as well as in the mainstream population. Exceptionally low levels of verbal ability were present in a high proportion of mainstream pupils. Measured levels of cognitive function show poor relationship with actual educational placement.