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Mean Concentration Values and Model-Estimated Mean Values, PHT
| Hair Color | Mean | Estimated Means1, |
| (N) | Concentration | PHT (S.E.) |
| PHT (S.D.) | ||
| Black (24) | 16.35 (5.79) | 15.184 (0.58) |
| Brown (18) | 16.76 (7.68) | 15.02 (0.67) |
| Blond (8) | 7.91 (2.92) | 11.96 (1.11) |
| Gray (10) | 6.55 (4.82) | 9.23 (1.09) |
1Evaluated at model covariates: PHT dose (mg/24hr) = 243.3, Age = 35.85
