Table 4.

Correlation between semiquantitative scoring and the dimensions of PCA in PND21C.

Correlation descriptors	Dim 1 ($\sim \text{size}$)	Dim 2 ($\sim \text{local\hspace{0.17em}thickness}$)	Dim 3 (s)
Correlation coefficient	0.88	$-0.29$	0.023
p-Value	$2.2\times {10}^{-16}$	0.011	0.84

Note: Dim, dimension; PCA, principal component analysis; PND, postnatal day.