Table 4 Malondialdehyde levels and mammographic density

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