LindaHi!
I am new to all of this, but from what I understand from my pedio endo is that it is most important to look at the progression over time of the childs growth. I was under the assumption that it is consistancy they are looking for. For instance, if your child was in the 50th percentile that they STAY in that percentile until puberty.
I hope that helps you!
God Bless!
Linda