Parent-reported atypical development in the first year of life and age of autism diagnosis.

This study looked at 423 families and found that certain early signs in a baby's first year may lead to earlier autism diagnosis. Parents who noticed their babies had difficulty with eye contact, didn't respond to social interactions, showed sensory sensitivities, or became fixated on parts of toys typically sought help sooner and received an autism diagnosis earlier. Most parents could look back and identify at least one area where their child's development seemed different in that first year.

This retrospective study of 423 children from the Australian Autism Biobank examined relationships between parent-reported atypical development in the first year of life and timing of autism diagnosis. Most parents retrospectively identified at least one domain of atypical development during their child's first year. Specific early signs were associated with earlier professional consultation and diagnosis. Social communication difficulties (gaze abnormalities, lack of response to social stimuli, and absence of social communication) and certain restrictive/repetitive behaviors (sensory hypo/hypersensitivity and preoccupation with object parts) were particularly predictive of earlier autism diagnosis.

The findings suggest that certain early developmental patterns may serve as important early indicators for families and clinicians.

These findings support the importance of early screening for specific social communication and sensory-behavioral markers in the first year. Clinicians should pay particular attention to parental concerns about gaze patterns, social responsiveness, and sensory behaviors as potential early indicators warranting further assessment.

The study relied on retrospective parent reports, which may be subject to recall bias. The abstract doesn't specify the study design or methodology details. Sample characteristics and timeframes for diagnosis are not clearly described, limiting interpretation of findings.

This study examined whether parent-reported atypical development in their child's first year was associated with age of diagnosis and age when parents first needed to consult a specialist about their child's development. It involved 423 children who participated in the Australian Autism Biobank. Most parents retrospectively identified ≥ 1 domain of atypical child development. Atypical development in most domains was associated with an earlier age when parents felt specialist consultation was needed.

Atypical development in the "gaze abnormalities", "lack of response to social stimuli", and "no social communication" subdomains within the social domain was associated with an earlier age of diagnosis, as was atypical development in the "hypo/hypersensitivity" and "preoccupation with parts of objects" subdomains within the stereotyped/restricted behavior domain.