Which birth order has the most occurences of ADHD?

I am no professional, this is just out of the families I know. My family and my husbands family both have 5 kids ... in both our families the middle and the last child have ADD.

We are friends with a couple who have 3 kids and their middle child has ADD.

We also both know two more families with 5 kids and the middle and last child have ADD.

This is just my observation. What a coincidence....

people and their ADHD obsession. most kids don't even hav eADHD they have irresponsible parents who feed them food full of sugar, park them in front of video games, don't discipline and never enforce proper manners. A bored, sugar-wired child whose parents never want to teach him to sit still and listen to rules for fear it will "hurt their individuality" or their feelings is not a child that needs to be given so much mind altering speed that they shut down so they are "easy" on teachers and parents. There is no conclusive study on birth order but younger children do sometimes exhibit more symptoms- could it be because they want attention and are over stimulated? most likely.

well my mom had two kids (me and my brother) my brother has ADHD and i have ADD. i think its sort of a "Russian roulette" thing my brother is 6 years older then me if that's of any importance to you. i also know kids who two out of three kids have it (the youngest and oldest)