Which of the following circumference sites are used to compute a waist-to-hip ratio?

The abdomen and suprailiac are skinfold caliper measurement sites used in body fat percentage estimation, not the standard landmarks for waist-to-hip ratio.

The midaxillary line is a vertical anatomical reference used in skinfold measurements, not a circumference site used in the waist-to-hip ratio calculation.

The waist-to-hip ratio requires two specific circumference measurements: the waist, typically measured at the narrowest point of the torso or at the level of the navel, and the buttocks or hips, measured at the widest horizontal circumference of the gluteal region. These two sites are the internationally recognized landmarks for this ratio. Dividing waist by hip circumference produces a ratio used to assess central adiposity and associated cardiometabolic risk.

Midaxillary and suprailiac are both skinfold assessment sites and neither corresponds to the hip or waist circumference landmarks needed for the waist-to-hip ratio.