Table 4 Estrogen receptor (ER) and progesterone receptor (PR) status of breast tumor and PA level at age 14, age 30 and at enrollment among 1,767 breast cancer cases in the Norwegian Women and Cancer Study

ER+/PR+ ^a

56

188

373

208

47

PA at enrollment

1.07 (0.81, 1.42)

0.94 (0.79, 1.12)

1.0 ref

0.95 (0.80, 1.12)

0.87 0(.65, 1.19)

0.49

PA at age 14

0.68 (0.40, 1.16)

0.74 (0.58, 0.95)

1.0 ref

1.02 (0.87, 1.20)

1.03 (0.85, 1.25)

0.02

PA at age 30

1.53 (1.00, 2.36)

1.10 (0.89, 1.40)

1.0 ref

0.95 (0.81, 1.12)

0.90 (0.71, 1.13)

0.04

ER+/PR- ^a

17

73

100

84

20

PA at enrollment

1.32 (0.78, 2.22)

1.43 (1.06, 1.94)

1.0 ref

1.40 (1.04, 1.87)

1.32 (0.81, 2.13)

0.98

PA at age 14

0.83 (0.36, 1.88)

0.62 (0.40, 0.98)

1.0 ref

0.92 (0.70, 1.22)

1.28 (0.93, 1.76)

0.02

PA at age 30

1.21 (0.53, 2.75)

0.84 (0.57, 1.26)

1.0 ref

1.00 (0.76, 1.30)

1.03 (0.70, 1.51)

0.68

ER-/PR- ^a

8

47

91

52

8

PA at enrollment

0.70 (0.34, 1.46)

1.03 (0.72, 1.47)

1.0 ref

0.94 (0.67, 1.32)

0.57 (0.28, 1.18)

0.51

PA at age 14

1.60 (0.73, 3.49)

1.06 (0.67, 1.70)

1.0 ref

1.10 (0.78, 1.54)

1.15 (0.76, 1.74)

0.94

PA at age 30

0.56 (0.14, 2.28)

0.78 (0.48, 1.27)

1.0 ref

0.90 (0.66, 1.24)

0.81 (0.50, 1.30)

0.97