A group of scientists from University College cork recently installed: the risk of a child of autism at birth by caesarean section increases by 23%. This information was denied by the doctors, after re-analysis data.
Examining 13400 pairs of brothers and sisters, scientists came to the conclusion that autism is not dependent on the way in which the child was born. More importance have genetics, ecology, and social factors.
But the age of the parents has a direct impact on the risk of autism. Scientists from Ikan medical school conducted an analysis of the health status of almost 6 million children from Denmark, Israel, Norway, Sweden and Western Australia. Children born to fathers aged 20-30 years had a 66% increased risk of developing the disease. 40-50 years the risk was higher by 28%.