TABLE 6.

Multiple regression analysis between plasma α-tocopherol (normalized for total cholesterol) or urinary metabolites and covariates in all subjects (n = 233)¹

	α-CEHC (μmol/g)		α-CMBHC (μmol/g)		Plasma α-tocopherol (mmol/mol)
	Regression coefficient	95% CI	Regression coefficient	95% CI	Regression coefficient	95% CI
Dietary α-tocopherol (mg/d)	0.0862	0.047, 0.125	0.018	0.010, 0.027	0.0842	0.059, 0.109
Plasma α-tocopherol (mmol/mol)	0.8202	0.646, 0.994	0.0732	0.034, 0.112
Plasma lipids (mg/dL)
Total cholesterol	−0.0332	−0.047, −0.0199	−0.0042	−0.007, −0.001	0.0392	0.031, 0.048
Triglycerides	−0.0142	−0.022, −0.006	−0.001	−0.003, 0.001	0.0192	0.013, 0.024
BMI
Overweight, 25–30 kg/m2	−0.718	−1.736, 0.300	0.034	−0.198, 0.266	0.045	−0.717, 0.807
Obese, >30 kg/m2	−0.711	−1.882, 0.461	−0.122	−0.386, 0.141	−0.485	−1.358, 0.388
Age
30–50 y	0.323	−0.661, 1.307	0.145	−0.077, 0.367	0.354	−0.383, 1.091
>50 y	0.522	−0.714, 1.758	0.252	−0.029, 0.534	0.928	0.008, 1.849
Female	0.359	−0.565, 1.284	0.044	−0.168, 0.256	0.215	−0.476, 0.905
African American	0.070	−0.865, 1.004	−0.104	−0.317, 0.109	−0.329	−1.031, 0.374
Energy intake (kcal)	0.230	−0.215, 0.675	0.050	−0.053, 0.154	−0.198	−0.552, 0.156

¹CEHC, carboxyethyl hydroxychroman; CMBHC, carboxymethylbutyl hydroxychroman.

²Significant regression coefficients (P < 0.05).