The concentration of three anti-seizure medications in hair: the effects of hair color, controlling for dose and age

Table 4 General Linear Model, Analysis of Covariance, Hair Assay Outcome by Color, Dose, Dose Duration, and Age, CBZ

Source	Type III Sum of Squares	df	Mean Square	F	Sig.	Eta²
Corrected Model	428.88	7	61.27	1.995	.087	.304
Intercept	346.37	1	346.37	11.281	.002	.261
CBZDOSE	154.13	1	346.37	11.281	.002	.136
DOSEDUR	2.89	1	2.89	.094	.761	.003
AGE	.636	1	.636	.021	.886	.001
COLOR	83.78	4	20.95	.682	.609	.079
Error	982.57	32	30.71
Total	14658.77	40
Corrected Total	1411.45	39