Table 6.
Multiple regression analysis of serum γ-tocopherol with each parameter.
| Explanatory Variable | Serum γ-Tocopherol d | ||
|---|---|---|---|
| β | p | Adjusted R2 | |
| All subjects a | 0.104 | ||
| Smoking (nonsmoker, smoker) | −0.161 | 0.031 | |
| HOMA-R | −0.153 | 0.065 | |
| 8-Isoprostane | 0.201 | 0.006 | |
| NOx | −0.151 | 0.034 | |
| Age < 40 b | 0.121 | ||
| Frequency of alcohol consumption | 0.219 | 0.041 | |
| HbA1c | −0.274 | 0.011 | |
| Age ≥ 40 c | 0.070 | ||
| Smoking (nonsmoker, smoker) | −0.229 | 0.040 | |
| HOMA-R | −0.224 | 0.052 | |
Notes: NOx, nitrogen oxide; HbA1c, hemoglobin A1c; HOMA-R, homeostasis model assessment ratio; All variables are log-transformed; a Adjusted for age, waist circumference, frequency of alcohol consumption, exercise, ferritin, dietary intakes of sodium, niacin, β-carotene, retinol, α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol, vitamin C; b Adjusted for waist circumference, smoking (nonsmoker, smoker), exercise, dietary intakes of retinol, α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol, vitamin C; c Adjusted for waist circumference, alcohol consumption, exercise, HOMA-R, dietary intakes of retinol, α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol, vitamin C; d Serum γ-tocopherol was adjusted by triglycerides.