Table 4 Associations between AL scores and AL categories with breast cancer risk

AL, continuous, Per one unit

1.05 (1.04, 1.07)

1.04 (1.02, 1.05)

1.04 (1.02, 1.05)

1.04 (1.02, 1.06)

1.05 (1.03, 1.06)

1.05 (1.03, 1.07)

AL category 1

 0

Reference

Reference

Reference

Reference

Reference

Reference

 1

1.10 (0.98, 1.23)

1.04 (0.92, 1.17)

1.04 (0.92, 1.17)

1.06 (0.94, 1.19)

1.06 (0.94, 1.19)

1.06 (0.94, 1.19)

 2

1.15 (1.02, 1.29)

1.05 (0.93, 1.18)

1.06 (0.94, 1.19)

1.07 (0.95, 1.21)

1.09 (0.96, 1.23)

1.09 (0.96, 1.23)

 3

1.27 (1.13, 1.43)

1.14 (1.02, 1.29)

1.15 (1.02, 1.29)

1.17 (1.04, 1.33)

1.19 (1.05, 1.35)

1.20 (1.06, 1.35)

 4

1.36 (1.20, 1.53)

1.21 (1.07, 1.37)

1.22 (1.08, 1.38)

1.26 (1.11, 1.43)

1.28 (1.13, 1.46)

1.29 (1.14, 1.47)

 5

1.29 (1.13, 1.47)

1.22 (1.01, 1.32)

1.16 (1.02, 1.33)

1.20 (1.05, 1.38)

1.24 (1.08, 1.42)

1.26 (1.09, 1.44)

 6 and over

1.37 (1.19, 1.58)

1.24 (1.06, 1.41)

1.24 (1.08, 1.43)

1.28 (1.10, 1.47)

1.31 (1.14, 1.52)

1.34 (1.15, 1.55)

 P for trend

 < 0.01

 < 0.01

 < 0.01

 < 0.01

 < 0.01

 < 0.01

AL category 2

 Low

Reference

Reference

Reference

Reference

Reference

Reference

 High

1.19 (1.13, 1.25)

1.13 (1.07, 1.19)

1.14 (1.08, 1.20)

1.15 (1.09, 1.21)

1.17 (1.10, 1.23)

1.17 (1.11, 1.24)