Description

Cheng et al developed equations for predicting body height in Chinese children based on a variety of body measurements. This can be used if height cannot be measured because of injury, deformity or other cause.

Subjects: Chinese children between 3 to 18 years of age

Based on Arm Span

standing height for boys in cm =

= 16.62 + (0.60 * (age in years)) + (0.83 * (arm span in cm))

standing height for girls in cm =

= 16.90 + (0.60 * (age in years)) + (0.83 * (arm span in cm))

Based on Upper Extremity Long Bones

standing height for boys in cm =

= 40.17 + (1.45 * (age in years)) + (4.15 * (radius length in cm))

standing height for girls in cm =

= 40.45 + (1.45 * (age in years)) + (4.15 * (radius length in cm))

standing height for boys in cm =

= 31.45 + (1.48 * (age in years)) + (3.52 * (humerus length in cm))

standing height for girls in cm =

= 31.15 + (1.48 * (age in years)) + (3.52 * (humerus length in cm))

standing height for boys in cm =

= 31.12 + (1.29 * (age in years)) + (4.32 * (ulna length in cm))

standing height for girls in cm =

= 30.35 + (1.29 * (age in years)) + (4.32 * (ulna length in cm))

Based on Lower Extremity Measurements

standing height for boys in cm =

= 41.89 + (1.64 * (age in years)) + (2.55 * (tibia length in cm))

standing height for girls in cm =

= 41.05 + (1.64 * (age in years)) + (2.55 * (tibia length in cm))

standing height for boys in cm =

= 19.51 + (2.12 * (age in years)) + (0.45 * (foot length in millimeters))

standing height for girls in cm =

= 20.40 + (2.12 * (age in years)) + (0.45 * (foot length in millimeters))

where:

• Using centimeters for foot length gives absurd results. Figure 9 on page 390 gives the plot of foot length in millimeters vs age.

• R-square for the equations range from 0.97 to 0.99