title: Linear regression to approximate longitudinal growth curves: revised standards for velocity of weight and length in infants.
abstract: Because of lack of acceptability of the previous log-linear model of slope velocity for the assessment of weight and length in children 1 to 36 months of age, a modified method for least squares determination of velocity of growth by slope has been designed. This model uses a compound logarithmic expression of time and a newly designed graphic scale. The acceptability of the graphic (hand-drawn) line is retained while "goodness of fit" of the model is improved. This improved model makes it possible to revise our standards for velocity of growth of children 1 to 36 months of age.
mesh_terms: D000886:Anthropometry; D001827:Body Height; D001835:Body Weight; D002675:Child, Preschool; D005260:Female; D006128:Growth; D006801:Humans; D007223:Infant; D008297:Male; D013223:Statistics as Topic