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

Table 16 General Linear Model, Analysis of Covariance, Hair Assay Outcome by Dose, Dose Duration, Age, and Hair Color, PHT

Source	Type III Sum of Squares	df	Mean Square	F	Sig.	Eta²
Corrected Model	2750.79	6	458.46	59.70	.000	.871
Intercept	78.61	1	78.61	10.24	.002	.162
AGE	48.64	1	48.64	6.34	.015	.107
DOSE	1593.67	1	1593.67	207.54	.000	.797
DOSEDUR	11.04	1	11.04	1.44	.236	.026
COLOR	227.13	3	75.71	9.86	.000	.358
Error	406.98	53	7.68
Total	14441.1	60
Corrected Total	3157.77	59