Figure 2.
Height velocity by Tanner stage at GnRH-analog initiation. Closed circles indicate youth designated male at birth (DMAB), and open circles indicate youth designated female at birth (DFAB). Horizontal line indicates the median for DMAB and DFAB combined. Comparison is made to height velocities of pre-pubertal youth in the Bone Mineral Density in Childhood Study (BMDCS), represented by the box and whisker plot in which the box and line indicate the median and interquartile range, respectively, and whiskers indicate minimum and maximum values. There was a significant difference in height velocity between participants who were Tanner Stage IV at GnRH analog initiation and those at Tanner Stage II and III (p = 0.002) and pre-pubertal participants in the BMDCS (p = 0.004).