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Table 13 Mean Concentration of PHT by Hair Color

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

Hair Color

Number of

Mean PHT

Standard

 

Subjects

Concentration

Deviation

Black

24

16.35

5.79

Brown

18

16.76

7.68

Blond

8

7.92

2.92

Gray

10

6.55

4.82

Overall Mean

60

13.71

7.32