Table 5: Outcomes by pattern of injury on MRI.

Table entries indicate percent of variance of each outcome measure (columns) by each predictor (row) explained within a 2-factor ANOVA based on NICHD MRI scoring. Grades 1A/1B represent presence of cortical/subcortical injury only; grade 2A represents presence of basal ganglia/thalamic injury only, and grades 2B/3 represent presence of both types of injury. The last row represents the interaction term between the two factors as a predictor.

Predictor	MSEL Expressive language t- score	MSEL Receptive language t- score	MSEL Visual reception t-score	MB Production Percentile	MB 3- longest utterance length
Presence of cortical/subcortical injury	8.1%	18.5%**	3.3%	4.3%	1.3%
Presence of basal ganglia/ thalamic injury	5.7%	6.5%	6.3%	1.6%	3.4%
(Cortical/ subcortical injury) × (basal ganglia/ thalamic injury) interaction effect	4.0%	3.5%	1.1%	4.9%	14.1%*
Total explained variance	17.8%	28.4%	10.6%	10.9%	18.9%

Bolded entries indicate p<0.05 by F-test (* p<0.05; ** p<0.01).

Abbreviations: MSEL: Mullen Scales of Early Learning; MB: MacArthur-Bates Communicative Development Inventories