Table 5 Haplotype 2 and risk of breast cancer by family history of breast cancer in the Nurses' Health Study

Case (frequency)^a

Control (frequency)^a

OR (95% CI)

OR^b (95% CI)

668 (51)

995 (58)

1.00 (reference)

1.00 (reference)

351 (27)

456 (27)

1.16 (0.97–1.38)

1.13 (0.95–1.35)

39 (2.9)

43(2.5)

1.36 (0.86–2.15)

1.34 (0.84–2.15)

165 (12)

145 (8)

1.69 (1.33–2.17)

1.78 (1.38–2.29)

77 (5.8)

75 (4.4)

1.51 (1.07–2.12)

1.60 (1.13–2.27)

14 (1.1)

3 (0.2)

10.06 (2.25–45.0)

10.83 (2.39–49.2)