The average age of AVM, or arteriovenous malformation, is difficult to determine. This is because AVM is a condition that can affect people of any age. While it's most commonly seen in young adults, AVM can affect people of any age, including children and the elderly.
The severity of AVM also varies from person to person, and the age of onset can range from infancy to adulthood. In general, AVM is more common in younger people and can become more severe with age.
In terms of the average age of AVM, the National Institute of Neurological Disorders and Stroke (NINDS) states that most AVM cases are diagnosed between the ages of 15 and 45. According to the American Association of Neurological Surgeons, the average age of an AVM patient is 36. This is most likely due to the fact that AVM is more likely to be seen in the younger population with more severe cases in the older population.
In conclusion, the average age of AVM is difficult to determine since it can affect people of any age. However, the NINDS and the American Association of Neurological Surgeons have stated that most cases are diagnosed between the ages of 15 and 45, with an average age of 36.