Onset patterns in autism: Correspondence between home video and parent report

Sally J Ozonoff, Ana-Maria Iosif, Gregory S. Young, Susan Hepburn, Meagan Thompson, Costanza Colombi, Ian C. Cook, Emily Werner, Stacy Goldring, Fottfam Baguio, Sally J Rogers

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

Objective: The onset of autism is usually conceptualized as occurring in one of two patterns, early onset or regressive. This study examined the number and shape of trajectories of symptom onset evident in coded home movies of children with autism and examined their correspondence with parent report of onset. Method: Four social-communicative behaviors were coded from the home video of children with autism (n = 52) or typical development (n = 23). All home videos from 6 through 24 months of age were coded (3199 segments). Latent class modeling was used to characterize trajectories and determine the optimal number needed to describe the coded home video. These trajectories were then compared with parent reports of onset patterns, as defined by the Autism Diagnostic InterviewRevised. Results: A three-trajectory model best fit the data from the participants with autism. One trajectory displayed low levels of social-communication across time. A second trajectory displayed high levels of social-communication early in life, followed by a significant decrease over time. A third trajectory displayed initial levels of behavior that were similar to the typically developing group but little progress in social-communication with age. There was poor correspondence between home video-based trajectories and parent report of onset. Conclusions: More than two onset categories may be needed to describe the ways in which symptoms emerge in children with autism. There is low agreement between parent report and home video, suggesting that methods for improving parent report of early development must be developed.

Original languageEnglish (US)
JournalJournal of the American Academy of Child and Adolescent Psychiatry
Volume50
Issue number8
DOIs
StatePublished - Aug 2011

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Autistic Disorder
Communication
Motion Pictures

Keywords

  • autism
  • onset
  • parent report
  • regression

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Developmental and Educational Psychology

Cite this

Onset patterns in autism : Correspondence between home video and parent report. / Ozonoff, Sally J; Iosif, Ana-Maria; Young, Gregory S.; Hepburn, Susan; Thompson, Meagan; Colombi, Costanza; Cook, Ian C.; Werner, Emily; Goldring, Stacy; Baguio, Fottfam; Rogers, Sally J.

In: Journal of the American Academy of Child and Adolescent Psychiatry, Vol. 50, No. 8, 08.2011.

Research output: Contribution to journalArticle

Ozonoff, Sally J ; Iosif, Ana-Maria ; Young, Gregory S. ; Hepburn, Susan ; Thompson, Meagan ; Colombi, Costanza ; Cook, Ian C. ; Werner, Emily ; Goldring, Stacy ; Baguio, Fottfam ; Rogers, Sally J. / Onset patterns in autism : Correspondence between home video and parent report. In: Journal of the American Academy of Child and Adolescent Psychiatry. 2011 ; Vol. 50, No. 8.
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