Table 4 Adjusted means of absolute mammographic density^a (95% confidence interval) in quartiles of plasma leptin concentration, stratified by tertiles of nondense mammographic area (n = 967)

First tertile (n)

140

90

55

40

   Mammographic density, adjusted^b

19.1(16.2–22.6)

17.8 (14.7–21.5)

16.8 (13.5–20.9)

19.4 (15.0–25.2)

0.7

   Mammographic density, adjusted^b, additionally adjusted for BMI^c

22.1 (18.2–26.8)

19.0 (15.6–23.1)

17.5 (14.0–21.9)

18.7 (14.4–24.3)

0.12

Second tertile (n)

68

82

94

75

   Mammographic density, adjusted^b

10.6 (7.8–14.5)

14.1(10.4–19.1)

13.2 (10.1–17.4)

17.3 (13.1–22.8)

0.02

   Mammographic density, adjusted^b, additionally adjusted for BMI^c

9.9 (7.2–13.6)

14.0 (10.3–19.0)

13.7 (10.3–18.2)

19.6 (14.6–26.3)

0.003

Third tertile (n)

43

62

94

124

   Mammographic density, adjusted^b

7.5 (4.9–11.6)

10.4 (7.2–15.0)

6.2 (4.5–8.5)

7.0 (5.2–9.4)

0.22

   Mammographic density, adjusted^b, additionally adjusted for BMI^c

8.2 (5.1–13.1)

11.3 (7.7–16.7)

7.5 (5.1–10.9)

8.6 (5.9–12.5)

0.63