"is much more common than classical . It is estimated to affect about one in every three or four hundred of the general population. More than half a million people in the United Kingdom have some kind of disorder on the autistic spectrum, with over 200,000 of them having Asperger's syndrome. Disorders of the autistic spectrum are found much more often in men than in women, although this may be because women are better at compensating for some of their more noticeable features, being better at social relationships and less likely to exhibit narrow interest patterns."