The outcome assessment was based on two methods. First, we used the International Classification of Disease to identify children with an ICD9 code of 317–319. These three codes identify mild, moderate, severe, and other specified or unspecified mental retardation. The second approach used the id...
[6,9,10,11]. Although ICD–10 provides for anxiety and depression as separate clinical entities [12], they are closely related. Both disorders share some symptoms, such as irritability, restlessness, insomnia, fatigue, cognitive impairment, short attention span, etc., which may even cause ...