This study compared Lange and McGaw calipers in a pediatric population. Biceps and triceps skinfold measurements were made in 240 pediatric patients ranging in age from 2 weeks to 18 years. Skinfold measurements McGaw calipers were 12.6% lower than with a Lange caliper. They concluded that McGaw and Ross plastic calipers would be an adequate substitute where cost prohibits the use of Lange calipers.