Table 2:

Change in UIA morphology measurements in relation to continuous UIA 2D and 3D growth^{^a}

Change in	Median (IQR)	Correlation Coefficient (P Value)
Change in	Median (IQR)	2D Growth, Length	2D Growth, Width	3D Growth, Volume
Volume (mm³)	1.60 (−3.70−10.80)	0.29 (<.01)^{^b}	0.28 (<.01)^{^b}	−
Area (mm²)	2.30 (−6.10−11.40)	0.25 (<.01)^{^b}	0.34 (<.01)^{^b}	0.90 (<.01)^{^b}
Compactness 1	0.50 (−1.70−2.60)^{^c}	0.10 (.28)	−0.01 (.89)	0.15 (.09)
Compactness 2	0.01 (−0.04−0.07)	0.09 (.30)	−0.02 (.86)	0.15 (.10)
Elongation	0.01 (−0.03−0.04)	0.01 (.89)	0.02 (.79)	0.09 (.33)
Flatness	0.00 (−0.03−0.04)	0.00 (.97)	0.05 (.58)	0.19 (.03)^{^b}
Sphericity	0.01 (−0.02−0.04)	0.10 (.27)	−0.01 (.94)	0.15 (.09)
Shape index	0.00 (−0.03−0.01)	−0.09 (.32)	−0.17 (.06)	−0.33 (<.01)^{^b}
Curvedness	−0.01 (−0.18−.07)	−0.12 (.16)	−0.15 (.09)	−0.33 (<.01)^{^b}

Note:—IQR indicates interquartile range; −, perfect correlation (same input variable).
↵a The correlation coefficient was calculated with the Pearson or Spearman correlation based on normality of morphologic change.
↵b P values are statistically significant.
↵c All values ×10³.