Developmental regression and autism reported to the Vaccine Adverse Event Reporting System.

TitleDevelopmental regression and autism reported to the Vaccine Adverse Event Reporting System.
Publication TypeJournal Article
Year of Publication2007
AuthorsWoo EJ, Ball R, Landa R, Zimmerman AW, Braun MM
Corporate AuthorsVAERS Working Group
JournalAutism : the international journal of research and practice
Date Published2007 Jul

We report demographic and clinical characteristics of children reported to the US Vaccine Adverse Event Reporting System (VAERS) as having autism or another developmental disorder after vaccination. We completed 124 interviews with parents and reviewed medical records for 31 children whose records contained sufficient information to evaluate the child's developmental history. Medical record review indicated that 27 of 31 (87%) children had autism/ASD and 19 (61.3%) had evidence of developmental regression (loss of social, language, or motor skills). The proportion of VAERS cases of autism with regression was greater than that reported in population-based studies, based on the subset of VAERS cases with medical record confirmation. This difference may reflect preferential reporting to VAERS of autism with regression. In other respects, the children in this study appear to be similar to other children with autism. Further research might determine whether the pathogenesis of autism with developmental regression differs from that of autism without regression.

Alternate JournalAutism