Table 2.

Age-Adjusted Means of Marker Scores in Cerebral Cortical Neurons in PVL and Control Cases

	Age-adjusted mean (SE)		p-value
	PVL	Controls	PVL v. Controls	PCA	Interaction DX × PCA
MDA	0.65 (0.14)	0.06 (0.12)	0.005	NS	NS
HNE	1.23 (0.15)	0.00 (0.13)	NS	NS	0.024
NT	0.20 (0.09)	0.00 (0.07)	0.091	NS	NS
GFAP	0.97 (0.26)	0.39 (0.22)	0.100	0.099	NS
CD68	0.73 (0.15)	0.33 (0.13)	0.060	0.082	NS

SE = standard error of the mean; PCA = postconceptional age; DX = diagnosis (PVL vs. control); NS = not significant and p > 0.100; p values ≥0.05 and <0.100 are included to indicate possible trends for future study; bold type = p value <0.050; − = not applicable. Range of marker scores is 0 (no staining) to 3 (>20 positive cells/high-power field) (see text for details). Ages of analyzed cases are 34 to 109 postconceptional weeks (see text for details).