Table 9.

Estimated p Values and Effect Sizes for Comparisons of Microglial Cell Body Area in Three Brain Regions Among Injury × Age Group Combinations from Generalized Linear Mixed Models With Negative-Binomial Error Distributions

Comparison	Hippocampus		Hypothalamus		Motor cortex
	p value	Effect size	p value	Effect size	p value	Effect size
Sham PND17 vs. TBI PND17	0.33	0.01	0.41	0.01	0.99	0.001
Sham PND17 vs. sham PND35	0.52	0.01	0.08	0.01	0.29	0.11
TBI PND17 vs. TBI PND35	0.02	0.01	0.03	0.01	0.02	0.17
Sham PND35 vs. TBI PND35	0.06	0.01	0.002	0.02	<0.001	0.23

Statistical significance was achieved if p < 0.05, whereas biological significance was achieved if effect size >0.20. Bold values denote biologically important effects.

PND, post-natal day; TBI, traumatic brain injury.