Research Article

Dietary Antioxidant Capacity Indices are Negatively Correlated to LDL-Oxidation in Adults

Table 3

Multivariate-adjusted model of the association of MDA and ox-LDL level with DTAC, OBS, and PI.

VariablesDTACOBSPI
T 1 (n = 78)T 2 (n = 79)T 3 (n = 79)T 1 (n = 104)T 2 (n = 63)T 3 (n = 69)T 1 (n = 79)T 2 (n = 78)T 3 (n = 79)

MDA (ng/L)
 Crude modelReference−0.04 (−0.24, 0.14)−0.10 (−0.30, 0.08)0.27Reference0.10 (−0.10, 0.30)0.03 (−0.16, 0.23)0.65Reference0.20 (0.006, 0.39)−0.01 (−0.21, 0.17)0.85
 Adjusted modelReference−0.03 (−0.23, 0.16)−0.10 (−0.30, 0.09)0.30Reference0.03 (−0.17, 0.24)0.01 (−0.19, 0.21)0.88Reference0.20 (0.001, 0.40)0.005 (−0.19, 0.20)0.99
Ox-LDL (IU/L)
 Crude modelReference−1.20 (−2.17, −0.23)−1.55 (−2.53, −0.58)0.002Reference−0.29 (−1.30, 0.72)0.57 (−0.41, 1.56)0.31Reference−1.21 (−2.18, −0.23)−1.26 (−2.23, −0.29)0.01
 Adjusted modelReference−1.21 (−2.22, −0.21)−1.65 (−2.66, −0.64)0.001Reference−0.38 (−1.44, 0.66)0.65 (−0.38, 1.70)0.28Reference−1.34 (−2.36, −0.32)−1.36 (−2.38, −0.34)0.01

MDA, malondialdehyde; ox-LDL, oxidized low-density lipoprotein; DTAC, dietary total antioxidant capacity; OBS, oxidative balance score; PI, phytochemical index. Adjusted for age, energy intake, BMI, sex, physical activity, and smoking history. Obtained by linear regression. Significant values are shown in bold.