Figure 4
Regression plot for square root transformed MMP-2 (matrix metalloproteinase-2) by globe axial length stratified by gender. Blue line of fit for females (F) and red line of fit for males (M). Each mm increase in axial length of a female eye led to 0.57 ng/mL increase of MMP-2 in the aqueous humor while the increase was 0.86 ng/mL for a male eye within the axial range from 22 to 36 mm. The heavier shaded area indicates the confidence region for the fitted line and the lighter shaded area indicates the confidence region for individual predicted values.
