Quartiles of MDA: mean percentage density (95% confidence interval) | ||||||||
---|---|---|---|---|---|---|---|---|
MDA1β (SE) | F | P | Q1 | Q2 | Q3 | Q4 | P for trend | |
Premenopausal (n = 146)3 | ||||||||
Serum MDA (μmol/l) | 0.57 (0.46) | 1.52 | 0.22 | 26.1 (17.7–36.1) | 25.7 (17.0–36.1) | 27.2 (18.9–36.9) | 26.3 (18.1–36.0) | 0.89 |
Serum MDA adjusted for antioxidants (μmol/l)2 | 0.12 (0.51) | 0.06 | 0.81 | 28.4 (19.3–39.1) | 25.8 (17.0–36.5) | 23.6 (15.7–33.0) | 22.9 (15.0–32.6) | 0.26 |
Total urinary MDA (μmol/day) | 0.24 (0.32) | 0.60 | 0.44 | 23.5 (15.5–33.2) | 27.9 (18.5–39.2) | 25.3 (17.6–34.4) | 26.9 (18.5–36.8) | 0.61 |
Total urinary MDA adjusted for antioxidants (μmol/day) | 0.17 (0.33) | 0.27 | 0.61 | 21.9 (14.0–31.5) | 26.5 (17.2–37.9) | 25.3 (17.4–34.7) | 24.3 (16.1–34.3) | 0.70 |
dG-MDA (ρ mol/mg DNA) | -0.02 (0.22) | 0.01 | 0.94 | 18.8 (12.1–27.0) | 32.7 (22.8–44.4) | 31.5 (22.4–42.0) | 23.0 (15.7–31.8) | 0.91 |
dG-MDA adjusted for antioxidants (ρ mol/mg DNA) | 0.10 (0.23) | 0.18 | 0.67 | 19.8 (12.6–28.5) | 32.8 (22.4–45.1) | 28.2 (19.4–38.7) | 23.6 (15.9–32.8) | 0.58 |
Postmenopausal (n = 149)4 | ||||||||
Serum MDA (μmol/l) | -0.33 (0.49) | 0.47 | 0.49 | 21.3 (13.4–31.1) | 24.7 (16.5–34.5) | 22.4 (14.1–32.7) | 21.2 (13.6–30.4) | 0.84 |
Serum MDA adjusted for antioxidants (μmol/l) | -0.37 (0.52) | 0.52 | 0.47 | 22.3 (13.2–33.9) | 25.4 (16.8–35.7) | 23.4 (14.4–34.5) | 21.8 (13.7–31.9) | 0.77 |
Total urinary MDA (μmol/day) | 0.19 (0.39) | 0.24 | 0.63 | 25.1 (16.3–35.8) | 19.1 (11.5–28.7) | 29.5 (20.5–40.2) | 24.5 (11.6–34.0) | 1.00 |
Total urinary MDA adjusted for antioxidants (μmol/day) | -0.04 (0.41) | 0.01 | 0.93 | 27.6 (17.9–39.6) | 19.8 (11.5–30.3) | 21.4 (13.5–31.1) | 24.7 (16.4–34.7) | 0.65 |
dG-MDA (ρ mol/mg DNA) | -0.05 (0.28) | 0.04 | 0.85 | 22.6 (14.9–32.1) | 22.8 (14.1–33.5) | 24.2 (15.2–35.2) | 23.3 (14.8–33.7) | 0.86 |
dG-MDA adjusted for antioxidants (ρ mol/mg DNA) | -0.11 (0.29) | 0.14 | 0.71 | 23.2 (14.7–33.6) | 23.5 (14.4–34.8) | 25.8 (16.1–37.8) | 21.9 (13.5–32.4) | 0.87 |