Laura, With a BA of 13, I'm surprised your ped. endo hasn't suggested Lupron for your daughter. When you say it's because she hasn't yet reached puberty, I assume you mean she hasn't had her period. I thought that a reason for giving the Lupron was to prevent periods from starting too soon, so isn't waiting till after the fact waiting almost too long? (Sorry, not trying to sound the alarm, just trying to understand the rationale.)

I believe that girls generally get their periods at around BA 13.3---maybe even sooner because kids are maturing much earlier these days, historically it used to be at a greater BA---so your daughter is basically on the brink. I know that different doctors use different ways to determine the onstart of puberty. My son was given a challenge test called an LHRH test, which measures levels of the pituitary hormones LH and FSH. I know Beth's daughter, Julia, also had this test done, before she was put on the Lupron. (You may also want to read Kay's post above, about her daughter's experience with Lupron, if you haven't seen it already.)

In thinking further about the BA/percentage of growth completed issue, I think that Amandasmom (Maxine) must be right when she says that girls reach most of their adult height by the time they start menstruating (again, usually at around BA 13.3, possibly earlier.) I was an early developer myself, got my period at age 9, end of 4th grade, tall for my age at that point. But I grew only another 1-2 inches, before I maxed out at my current adult height (5'-0") which was age 11, 6th grade. That was what made me correct my original post above, thinking that the numbers I had given in my original post, therefore, couldn't possibly pertain equally to boys and girls. (Offhand, it would seem that they are different by at least a couple of years.)

Perhaps this would be an issue worth revisiting with with your ped. endo. And please keep us posted...I'd be very interested what he/she says!