6. Norway – 5,2
The low number of patients with autism and the new research show that Norway, number 6 on our list of developed countries with lowest autism rates does not have autism epidemic as many other countries on this list. The reason could be different methodology, where only children with visible and obvious symptoms of autism are taken into account due to the claim that only mental retardation can be considered as the main autism symptom in children, while others are secondary symptoms of this disease. However, many things have been changed in Norway in the past years, including food, medicines and lifestyle, as the project “Barn I Bergen” has shown.