The symptoms of ASDs typically are present before age 3 years and often are
accompanied by abnormalities in cognitive functioning, learning, attention, and sensory
A formal diagnosis is generally not made until the age of five.
The vast majority of cases of autism are idiopathic, the best scientific evidence
available to us today points toward a potential for various combinations of factors,
namely multiple genetic components and certain environmental and socio-economic
factors. Timing of exposure during the child's development (before, during or after
birth) may also play a role in the development or final presentation of the disorder.
To estimate the effect of certain socio-economic and other risk factors on the
prevalence of Autism in Qatar.
The target population for this study are children diagnosed with Autism attending the
Shafallah Center for children with special needs.
Clinical evaluation is conducted by a developmental psychologist, and/or pediatrician, it
includes a medical, developmental, and behavioral history; a standard physical and
neurologic examination, In addition, the Autism Diagnostic Interview (ADI-R), and
Autism Diagnostic Observation Schedule-G (ADOS-G) will be administered.
Preliminary analysis of 171 subjects showed the highest prevalence among age group
7-14 years (61%).
Male/female ratio was 82% /18%, which is around 5/1.
Other factors like consanguinity,education,and family income found to have an effect
on the prevelance of the disease in Qatar.
Obtaining a reliable estimate is important in planning for providing the best health care
and educational services needed to improve the overall outcome of Autism in Qatar.
See more of: Epidemiology
See more of: Prevalence, Risk factors & Intervention