<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>The ratio of the abdominal circumference at the navel to maximum hip and buttocks circumference; looks at the proportion of fat stored on the body around the waist and hip. Carrying extra weight around the waist is a greater health risk than carrying extra weight around the hips or thighs.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>