Whose Planet Is It Anyway.  The blogger points out that the strongest association (schizophrenia), though statistically signficant, occurred in a mighty small number of either parents or children.  In fact, overall there was a lot less depression among the parents of kids with autism than one might expect.  And meanwhile, autism has historically been conflated with schizophrenia, so no wonder an association might turn up.  She says it better than I summarize of course.  Got to give some respect to anyone blogging under the name Autistic Bitch from Hell!!