A method to determine the likelihood of transition to puberty in a heterogeneous prepubertal age group.

A model based on pubertal status and age in normal healthy children that can be used to estimate the probability that a given child will enter or progress through puberty in a given period is presented. This model could also be used to estimate the proportion of children who would be expected to have changes in their pubertal status over a given period, for example, in an interventional trial of growth promoting agents.