Table 2 Current alcohol intake (at least 12 times per year) assessed by quantitative food-frequency questionnaire and risk of breast cancer by Asian ethnicity and birthplace

Ca/Co

OR ^a

Ca/Co

OR ^a

Ca/Co

OR ^a

Ca/Co

OR ^a

Ca/Co

OR ^a

Ca/Co

OR ^a

No

248/266

1.00

112/74

1.00

73/95

1.00

685/610

1.00

11/19

1.00

658/460

1.0

Yes

116/112

1.42

65/58

0.78

17/36

0.31

123/162

0.72

11/9

2.93

106/99

0.79

P value

0.062

0.41

0.015

0.022

0.11

0.18

None

248/266

1.00

112/74

1.00

73/95

1.00

685/610

1.00

11/19

1.00

659/460

1.00

> 0 to ≤ 4/week

89/90

1.36

45/45

0.73

14/30

0.29

96/142

0.63

10/9

2.67

91/79

0.87

> 4/week

27/22

1.67

20/13

0.97

3/6

0.43

27/20

1.36

1/0

14/20

0.43

P trend

0.053

0.61

0.035

0.16

0.27

0.05

P interaction

0.49

0.73

0.08

Current amount (g/day)

None

248/266

1.00

112/74

1.00

73/95

1.00

685/610

1.00

11/19

1.00

659/460

1.00

> 0 to ≤ 5.0

85/85

1.33

41/44

0.62

10/27

0.22

95/132

0.68

9/7

2.95

86/74

0.90

> 5

31/27

1.73

24/14

1.32

7/9

0.63

28/30

0.92

2/2

2.88

20/25

0.49

Per 5 g/day

1.32

0.99

0.55

0.82

2.11

0.78

95% CI

1.01-1.73

0.66-1.48

0.29-1.05

0.66-1.02

0.78-5.71

0.60-1.02

P trend

0.044

0.96

0.07

0.07

0.14

0.07

P interaction

0.42

0.37

0.22

Summary by Asian ethnicity

Japanese

Chinese

Filipino

By 5 g/day

1.17 (0.99 to 1.39); P trend = 0.073

0.83 (0.70 to 0.99); P trend = 0.032

0.84 (0.68 to 1.03); P trend = 0.096

P interaction

0.016

Summary by nativity

US Born

Non-US born

By 5 g/day

1.16 (0.97 to 1.39); P trend = 0.073

0.82 (0.73 to 0.93); P trend = 0.002

P interaction

0.027