Original sentence: The two differences are that IDF state if BMI>30 kg/m2 central obesity can be assumed and waist circumference does not need to be measured, however this potenitally excludes any subject without increased waist circumference if BMI<30, while in the NCEP definition metabolic syndrome can be diagnosed based on other criteria and the IDF uses geography-specific cut points for waist circumference, while NCEP uses only one set of cut points for waist circumference regardless of geography
Edited sentence: The two differences are that IDF state if BMI>30 kg/m2 central obesity can be assumed and waist circumference does not need to be measured, however this potentially excludes any subject without increased waist circumference if BMI<30, while in the NCEP definition metabolic syndrome can be diagnosed based on other criteria and the IDF uses geography-specific cut points for waist circumference, while NCEP uses only one set of cut points for waist circumference regardless of geography