common wrote:
I totally agree. I have no mathematics background, so I don't know how to express it in proper terms, but a straight up ratio doesn't properly compare a person who is four feet tall with someone who is seven feet tall. There must be some kind of additional manipulation that needs to be done there.
Since weight is proportional to volume it would make most sense to use the height cubed to weight. BMI uses height squared which is probably one of its problems, since leanness often correlates with height a power law of about 2.5 is probably optimum.