Prevalence of Autism Spectrum Disorders in Guanajuato, Mexico: The Leon survey

J Autism Dev Disord. 2016 May;46(5):1669-85. doi: 10.1007/s10803-016-2696-6.


There are no epidemiological data on autism for Mexico. This study was conducted to generate a first estimate of ASD prevalence in Mexico. We surveyed children age eight in Leon (Guanajuato). The sample was stratified in two strata: (1) children having special education and medical records (SEMR; N = 432) and (2) children attending regular schools (GSS; N = 11,684). GSS children were screened with the SRS and those with the highest scores were invited to a diagnostic evaluation. The final sample comprised 36 children (80.6 % male) who had confirmed ASD. A third had intellectual disability, 25 % were non-verbal, 69 % had co-occurring behavioral problems. The prevalence overall was 0.87 % (95 % CI 0.62, 1.1 %). This survey provides an estimate for ASD prevalence in Mexico that is consistent with recent studies.

Keywords: Autism spectrum disorders; Cultural; Epidemiology; Prevalence; Screening.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Autism Spectrum Disorder / diagnosis*
  • Autism Spectrum Disorder / epidemiology*
  • Autism Spectrum Disorder / psychology
  • Child
  • Child, Preschool
  • Education, Special / trends
  • Female
  • Humans
  • Male
  • Medical Records
  • Mexico / epidemiology
  • Prevalence
  • Surveys and Questionnaires*