Their baby was born prematurely and weighed only one kilogram.
The second assumes that the intensity increases from the base where it is 200 kilograms, to the summit where it reaches 400 kilograms.
The regression equation showed that internal circumference grew by an average of 0.73 cm per log kilogram increase in fetal and neonatal body weight.
This is a person's weight in kilograms divided by the square of the person's height in metres.
