The ratio of the stem-length, i. e., the sitting-height measured in a special and seemingly more accurate manner, to the stature is thought worth bringing to the attention of clinicians for the following reasons:
The proportional sitting-height (100 Si ÷ H) has an established value among investigators of growth in school children and, indeed, in general, among physical anthropologists.
The absolute measurements of sitting-height and the similar stemlength have been shown in the last six years to possess a notable parallelism to the body weight.1-5 Some have even believed this correlation to be closer than of weight to height.1,2 At least, it seems fair to urge those who take any measurements to include the stemlength.
The relationship of body trunk to extremities has, in the last three years, increasingly been brought forward by American physicians in regard to endocrine disease, especially of the hypophysis. This relationship may, in our opinion, be best
GRAY H. A STEM-STATURE INDEX. Arch Intern Med (Chic). 1923;31(4):491-498. doi:10.1001/archinte.1923.00110160038002