Ventilatory functions of normal children and young adults: Mexican-American, white, and black. III. Sitting height as a predictor

J Pediatr. 1983 Jun;102(6):860-5. doi: 10.1016/s0022-3476(83)80012-2.


We studied the ventilatory functions of 1800 normal children ranging in age 7 to 20 years. Boys and girls of black, white, and Mexican-American ethnic groups were represented adequately. The FVC and FEV1 of normal black children were fully 1 SD lower than those of white children with the same standing height. Such racial differences could not be corrected by a scaling factor, because the differences vary with sex and also with height as the children grow. Using sitting height as a predictor greatly reduced the racial differences of ventilatory functions and permitted the application of one set of prediction equations for children of all three groups.

Publication types

  • Comparative Study

MeSH terms

  • Adolescent
  • Adult
  • Blacks*
  • Body Height
  • Child
  • Female
  • Hispanic or Latino*
  • Humans
  • Lung / physiology*
  • Lung Volume Measurements
  • Male
  • Posture
  • Respiration*
  • Whites*