Kekes-Szabo et al reported equations for estimating abdominal fat distribution in CT images for adult white males. The authors are from the University of Alabama at Birmingham.
Patient selection: white males from 18-71 years
Outcomes:
(1) total abdominal fat
(2) subcutaneous fat
(3) intra-abdominal fat
Reference examination: CT
Parameters:
(1) age in years
(2) waist circumference in cm
(3) sum of mid-thigh and lower-thigh circumference in cm
(4) umbilicus circumference in cm
(5) body mass index in kg per square meter (BMI)
(6) vertical abdominal skinfold in millimeters
(7) chest skinfold in millimeters
(8) suprailiac skinfold in mm
total abdominal adipose tissue area in square cm =
= (5.36 * (umbilicus circ)) + (2.81 * (age)) + (4.11 * (chest SF)) + (10.54 * (BMI)) - 678.39
subcutaneous adipose tissue area in square cm =
= (3.98 * (umbilicus circ)) + (2.31 * (chest SF)) + (1.84 * (age)) + (3.41 * (suprailiac SF)) - 398.78
intra-abdominal adipose tissue area in square cm =
= (4.37 * (waist circ)) + (0.75 * (age)) + (1.26 * (vertical abdominal SF)) - (1.55 * (sum thigh circs)) - 202.04
