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The Test of Variables of Attention (T.O.V.A.) is a neuropsychological assessment that measures a person's attention while screening for attention deficit hyperactivity disorder. Generally, the test is 21.6 minutes long and is presented as a simple, yet boring, computer game.
The syndrome can present with variable symptoms, even between members of the same family harboring the same mutation. [1] Typically most or all tissues are resistant to thyroid hormone, so despite raised measures of serum thyroid hormone the individual may appear euthyroid (have no symptoms of over- or underactivity of the thyroid gland).
[3] [6] The International Classification of Diseases 11th Revision also updated its diagnostic criteria to better align with the new DSM-5 criteria, but in a change from the DSM-5 and the ICD-10, while it lists the key characteristics of ADHD, the ICD-11 does not specify an age of onset, the required number of symptoms that should be exhibited ...
A primary care (e.g. general or family physician) version of the mental disorder section of ICD-10 has been developed (ICD-10-PHC) which has also been used quite extensively internationally. [22] A survey of journal articles indexed in various biomedical databases between 1980 and 2005 indicated that 15,743 referred to the DSM and 3,106 to the ICD.
The prevalence of attention deficit hyperactivity disorder was found to be 3.4% overall in Riyadh, Saudi Arabia, among primary school students between the years of 2015 and 2016, with 22 children having symptoms that were both reported by their parents and teachers. The gender split among them was 3:1, with 13 (5.7%) boys and 9 (2.1%) girls. [17]
ICD-10 is the 10th revision of the International Classification of Diseases (ICD), a medical classification list by the World Health Organization (WHO). It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases. [1]
The DSM-IV criteria for diagnosis of ADHD is 3–4 times more likely to diagnose ADHD than is the ICD-10 criteria. [217] ADHD is alternately classified as neurodevelopmental disorder [218] or a disruptive behaviour disorder along with ODD, CD, and antisocial personality disorder. [219] A diagnosis does not imply a neurological disorder. [190]
To meet criteria for ADHD diagnoses, one must have 6 positive responses to either the core 9 inattentive symptoms or core 9 hyperactive symptoms, or both. [ 7 ] Both the parent and the teacher versions ask the respondent to rate the frequency of a child's behaviors on a 0–3 scale as follows: