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Brief Report: Prevalence of Autistic Spectrum Disorders in the Sultanate of Oman


Prevalence of autistic spectrum disorders (ASD) in Oman is unknown. We conducted a cross-sectional study to estimate the prevalence of ASD among 0–14 year old children. Diagnoses were made as per DSM-IV-TR criteria and supplemented with information collected with the standard Childhood Autism Rating Scale (CARS) questionnaire. A total 113 cases of ASD were enumerated nationwide, indicating an overall prevalence of 1.4 (95% CI 1.2, 1.7) cases per 10,000 children aged 0–14 years. More prevalent cases were among boys (75%) and among low-income families. Ritualistic interests were more common among girls as an onset-symptom compared to boys (p = 0.03). The reported low prevalence of ASD in Oman is likely due to under-diagnosis and under-reporting.

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The project was supported by funds from Sultan Qaboos University, College of Agricultural and Marine Sciences, grant number IG/AGR/FOOD/10/01.

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Correspondence to Yahya M. Al-Farsi.

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There has been no change in affiliation of any of the authors subsequent to the time of the study.

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Al-Farsi, Y.M., Al-Sharbati, M.M., Al-Farsi, O.A. et al. Brief Report: Prevalence of Autistic Spectrum Disorders in the Sultanate of Oman. J Autism Dev Disord 41, 821–825 (2011).

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  • Autism
  • ASD
  • Prevalence
  • Symptoms
  • Oman