39w1d decrease in fundal height

My sister's place up in Yorkshire has charts according to your height
which gives you your expected fundal height. She was way over from early
on (and got bigger)-and had a small (9%) baby. My fundal height ended up
about 8cm too low, but she was about 50%.

I'm not sure maternal height alone is a particularly good indicator,
possibly worse than a blanket cm per week. Doctors would like to catch 10th
centile and below babies, so it failed in this instance, though it's only a
subset of the 10th centile and below that are IUGR rather than just small
and some above 10th centile are IUGR, again reinforcing that it's patterns
of growth that are more important.

I think the customised charts that are working well use a lot of factors,
but I don't know what the factors are, I know ethnic background is in there
somewhere.

Anne