The Social Attention and Communication Study involved the successful implementation of developmental surveillance of the early markers of autism spectrum disorders in a community-based setting. The objective in the current study was to determine the most discriminating and predictive markers of autism spectrum disorders used in the Social Attention and Communication Study at 12, 18 and 24 months of age, so that these could be used to identify children with autism spectrum disorders with greater accuracy. The percentage of ‘yes/no’ responses for each behavioural marker was compared between children with autistic disorder (n = 39), autism spectrum disorder (n = 50) and developmental and/or language delay (n = 20) from 12 to 24 months, with a logistic regression also conducted at 24 months. Across all ages, the recurring key markers of both autistic disorder and autism spectrum disorder were deficits in eye contact and pointing, and from 18 months, deficits in showing became an important marker. In combination, these behaviours, along with pretend play, were found to be the best group of predictors for a best estimate diagnostic classification of autistic disorder/autism spectrum disorder at 24 months. It is argued that the identified markers should be monitored repeatedly during the second year of life by community health-care professionals.

Approximately 2% of individuals worldwide are on the autism spectrum,^1,2 with some studies reporting a prevalence of 4% or higher.³ Early identification is crucial for children on the autism spectrum and their families because it facilitates early diagnosis, and access to supports and services, which greatly improves outcomes^4-7; however, the mean age of diagnosis in childhood is still approximately 4 years.^8,9 Early identification can be achieved via single-time autism screening in the general population (level 1 tools) or targeted groups (level 2 tools), such as siblings of children on the autism spectrum or those in clinical settings (eg, hospitals). Other approaches include developmental surveillance during which children are repeatedly monitored over time.^10,11 The information source can also vary, with tools using parental or caregiver report, professional observations, or a combination of both.^12,13

Parenting an autistic child can reduce the time parents have to participate in their own interests, but the impact this has on caregiver quality of life is not well understood. The aim in undertaking this scoping review was to examine and describe current research about occupational participation and quality of life among parents of autistic children. Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension guidelines, a comprehensive search of multiple databases was conducted with a systematic selection process resulting in a final set of 70 articles. These included publications related to leisure, community and employment occupations, and quality of life in parents and caregivers of autistic children or children with additional needs. The review revealed the impact of caregiving demands and challenges in raising an autistic child that often take priority over the caregiver’s own needs and desires, particularly in occupational participation, which impacts their quality of life. Gaps were identified in the literature on parental occupations and the relationship with quality of life among caregivers of autistic children, particularly fathers. Further investigation into caregiving experiences and examination of the relationship between parental occupations and quality of life in caregivers of autistic children is needed, as the findings can inform the development of suitable supports for them. Lay We searched a wide range of academic journals for published information on the participation levels of caregivers of autistic children in activities relating to leisure, social, community and employment contexts, and the impact that participation may have on caregiver quality of life. Overall, we found that the impact of parenting an autistic child is broad with caregivers often prioritising their child’s needs over their own, particularly in occupational participation, which impacts their quality of life. Findings also highlighted a need for further research to investigate the experience of caregivers, and the relationship between participation and quality of life in caregivers of autistic children, as the results can inform the development of better supports for them.

Autism spectrum disorder diagnoses in toddlers have been established as accurate and stable across time in high-risk siblings and clinic-referred samples. Few studies have investigated diagnostic stability in children prospective identified in community-based settings. Furthermore, there is a dearth of evidence on the individual behaviours that predict diagnostic change over time. The stability and change of autism spectrum disorder diagnoses were investigated from 24 to 48 months in 77 children drawn from the Social Attention and Communication Study. Diagnostic stability was high, with 88.3% overall stability and 85.5% autism spectrum disorder stability. The behavioural markers at 24 months that contributed to diagnostic shift off the autism spectrum by 48 months included better eye contact, more directed vocalisations, the integration of gaze and directed vocalisations/gestures and higher non-verbal developmental quotient. These four variables correctly predicted 88.7% of children into the autism spectrum disorder–stable and autism spectrum disorder–crossover groups overall, with excellent prediction for the stable group (96.2%) and modest prediction for the crossover group (44.4%). Furthermore, non-verbal developmental quotient at 24 months accounted for the significant improvement across time in ‘Social Affect’ scores on the Autism Diagnostic Observation Schedule for both groups and was the only unique predictor of diagnostic crossover. These findings contribute to the body of evidence on the feasibility of diagnoses at earlier ages to facilitate children’s access to interventions to promote positive developmental outcomes.