Table 6 Association between alcohol intake (g per day) and breast cancer risk by joint hormone receptor status

From: Low-to-moderate alcohol intake and breast cancer risk in Chinese women

  

ER+/PR+

ER−/PR−

ER+/PR− or ER−/PR+

 

No. controls

No. cases

OR (95% CI) a

No. cases

OR (95% CI) a

No. cases

OR (95% CI) a

All women

 None

529

235

1.00b

192

1.00b

64

1.00b

 >0–<15

412

92

0.55 (0.41–0.73)

58

0.46 (0.33–0.64)

41

1.06 (0.68–1.64)

 ⩾15

58

20

0.89 (0.51–1.56)

25

1.42 (0.84–2.41)

16

2.82 (1.47–5.42)

Premenopausal women

 None

332

160

1.00b

109

1.00b

42

1.00b

 >0–<15

297

72

0.58 (0.42–0.81)

39

0.49 (0.32–0.74)

31

1.08 (0.64–1.81)

 ⩾15

38

16

0.99 (0.51–1.89)

14

1.34 (0.67–2.69)

8

1.96 (0.80–4.79)

Postmenopausal women

 None

197

75

1.00b

83

1.00b

22

1.00b

 >0–<15

115

20

0.45 (0.25–0.81)

19

0.36 (0.20–0.64)

10

0.98 (0.43–2.25)

 ⩾15

20

4

0.76 (0.23–2.51)

11

1.62 (0.69–3.81)

8

4.27 (1.57–11.65)

  1. Abbreviations: CI=confidence interval; OR=odds ratio.
  2. aEstimates from unconditional logistic regression models included terms for age at interview (continuous), residential area (urban, rural), education (none, primary, secondary, tertiary), BMI (5-years ago), age at menarche (continuous), oral contraceptive use (never, ever), hormone replacement therapy (never, ever), breast cancer in first-degree relatives (no, yes), total energy intake (continuous), folate intake (continuous), smoking (no, yes), tea drinking (no, yes), physical activity (weekly MET-hour, continuous) and menopausal status (no, yes; only for all women).
  3. bReference category.
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