I am a pediatric anesthesiologist and am interested in the perioperative outcomes of children with autism. It is a well known fact that children with normal development can have developmental regression after exposure to anesthesia. Different scales have been used to evaluate their post hospitalization outcomes.No such scales exist for children with autism and other developmental problems. I would like to develop such validated scale but am straggling with identifying the wright questions to ask. Any recommendations are welcome. Also any suggestions how to evaluate them.