Measure your waist, measure your risk.
The rationale for using waist circumference is simple – the greater the waistline for a given BMI, higher the likelihood for relatively more amount of intra-abdominal fat. As a result, waist size measurement is a pretty good surrogate marker of abdominal obesity. For adult patients with a BMI of 25 to 34.9 kg/m2, sex-specific waist circumference cut-offs should be used in conjunction with BMI to identify increased disease risk.