Figure 5.

Left panel: NPhL development for males (black open circle) and females (shaded gray triangles) with growth curve using a fourth degree polynomial fit for males (dashed black line) and females (solid gray line). Male versus female fits are significantly different (p=0.008). The second Y-axis reflects the percent growth for males (black, outwards tick orientation) and females (gray, inwards tick orientation). NPhL is a calculated measurement of VT-V minus PCL. Right panel: Growth rate of NPhL for males (dashed black line) and females (solid gray line) as a function of age.