i think the 'increase' of diagnosis is because practitioners have become more adept at reccognizing and making diagnosis. my fear however is that some children who may not truly have any form of autism are being misdiagnosed in the same manner many children have been misdiagnosed with adhd.
reason i say this is-ds truly has adhd, and it intialy showed itself by much more than just behavioural issues. it took a long time to get the diagnosis because we and our doctors wanted to rule out any other possible issues (hearing, vision, allergies...)-then the diagnosis was done by 2 individual specialists in order to ensure it was correct. i'm therefore skeptical and frightened when i know of/read about kids that realy have shown only signs of minor behavioural problems getting a snap diagnosis of adhd from a teacher or a pediatrician whose not completly trained in the field. it seems like allot of parents embrace adhd as a means to excuse poor behaviour in their kids or poor parenting skills on their own part (as in the 'nanny 911' manner). i therefore wonder if some parents are rushing to accept a diagnosis of some of the milder forms of autism before everything else has been ruled out-and if all the doctors making these diagnosis are truly skilled to do so (i mean i would hope the diagnosis comes from a highly skilled doctor-it's just not something i would feel comfortable in accepting from my pediatrician or a gp or a fp).
here's an example-the other day ds was at the neurologists to get migrane meds. when we're sitting in the waiting room he begins to interact with another boy his age (10), little boy interacts with ds and us totaly on par with a 10 year old level-good eye contact, moves with ease from subject to subject (though of course the major topic was pokemon

), he and ds watch the movie on the tv....the mother of the boy then (unsolicited) starts telling dh and i how the best thing that ever happened for HER was when her doctor diagnosed her son as high functioning autistic. that he's now able to get the schooling (iep) that she WANTS for him, people are much more accepting of him...it was an odd conversation. she continues to tell us that we should pursue getting a diagnosis for our son

because of the 'advantages'. i could'nt help myself and asked her what symptoms led her to believe her son was autistic. she said that 1-he refused to hug or kiss family members that he had'nt seen in months or had never met ('i mean his grandparents came to see him when he was 5 and it had only been 3 years since their last visit-what 'normal' child would'nt want to run up and just hug grandma and grandpa to death?'), 2-when he was being stubborn or disciplined he avoided eye contact with her and just did'nt WANT to listen, 3-he would get 'stuck' with an interest that just seemed to be all consuming ('when he was a preschooler he was totaly into blues clues, then it was bob the builder, then it was power rangers, now it's pokemon-but he's doing so much better cause now he also likes yugioh')
i'm thinking-man every child i've ever taught, ever known is mildly autistic on this basis. i could'nt help but feel such concern for a child whose mom was so thrilled that she had a diagnosis to explain away what is pretty much the norm for kids at different ages-and then find it advantagous because it opened a door for her to get specialized ed. services-it was like a badge of honor for her
i guess what i'm saying is-i'm thrilled that med practitioners are more skilled at diagnosis, and that there is more recognition of the needed treatment for truly autistic kids-but i hope and pray that those practitioners don't make rash and inappropriate diagnosis. too many non adhd kids were given meds that did'nt need them-and not given the parenting they did. i would hate to see that become an issue with autisim.