Intellectual disability affects about 2–3% of the general population. 75–90% of the affected people have mild intellectual disability. Non-syndromic or idiopathic ID accounts for 30–50% of cases. About a quarter of cases are caused by a genetic disorder. Cases of unknown cause affect about 95 million people . It is more common in males and in low to middle income countries.
symptom of Birth defect
symptoms of Birth defect
symptom of Congenital heart defect
symptom of Stillbirth
types of Head injury
symptom of Nuchal cord
symptom of Achondroplasia
symptom of Arrhythmia