Quote:
1-you have about a 25% higher chance of having an autistic child if you are a mechanical or computer engineer...OR IF you have (or had) a grandfather who was an engineer
It may be accurate to say that a child of a randomly-chosen engineer is 25% more likely to be autistic than a randomly-chosen child of a non-engineer, but does that equate to parents' chosen occupation influencing the likelihood of any future offspring being autistic?
If a condition is inherited then the children of someone having said condition or children of carriers of some condition are more likely to have that condition.
If autism is inherited and people with autistic traits are more likely to become engineers that might explain why children of engineers are more likely in general to be autistic. But if autism is inherited wouldn't it make more sense that only the children of engineers with autism or who carry autistic genes would be more likely to have autistic children?
Quote:
2- ............you have a 5 times higher risk if you are a male over the ages of about 42-44 and beyond of having an autistic child
If autism is inherited and people with autistic traits are more likely to be older when having children that might explain why children conceived by older males are more likely in general to be autistic. But if autism is inherited wouldn't it make more sense that only the children of older males with autism or of those who carry autistic genes would be more likely to have autistic children?
To go further, if an autistic male is lower functioning would it make sense that if said male breeds then it would be more likely that he would breed at a later age?
And is there really enough information to say that as an autistic father ages that the likelihood of passing autism to his children increases?
Both of your claims might be explained by the following:
- if autism is inherited, then
- if level of functioning in parents has an influence on likelihood of passing autism to one's children, then
- if autistic males or males related to autistic males are more likely to become engineers
- if the level of an autistic male's functioning has an inverse relationship with the average date on which said male would breed
If autism is inherited, and if functioning level has an influence on whether said inheritance is expressed in one's children, and if level of functioning has an inverse relationship with age of breeding, then wouldn't that create a situation where the average age of the parents of autistic newborn children would be higher than the average age of the parents of non-autistic newborn children?