Older fathers more likely to have autistic grandchildren

By Kate Kelland LONDON (Reuters) - Men who have children when they are older are more likely to have grandchildren with autism, according to a study which shows for the first time that risk factors for autism may build up over generations. Men who had a daughter when they were 50 or older were 1.79 times more likely to have a grandchild with autism than men between 20 and 24, and with sons the ... via http://news.yahoo.com/older-fathers-more-likely-autistic-grandchildren-200401290.html