Table 2 Associations between beverage consumption and risk of breast cancer in the Guangzhou Biobank Cohort Study

Dairy-based milk

 < 1 portion/week

9,373

1.08

1.00

1.00

 1–2 portions/week

1,188

1.44

1.33 (0.87, 2.03)

1.15 (0.75, 1.77)

0.51

 3–6 portions/week

1,497

1.26

1.16 (0.77, 1.74)

0.98 (0.65, 1.48)

0.94

 > 6 portions/week

1,509

1.76

1.62 (1.14, 2.31)

1.41 (0.99, 2.03)

0.06

 per 1 portion

1.05 (1.01, 1.09)

1.03 (0.99, 1.08)

0.15

Soy milk

 < 1 portion/week

11,518

1.23

1.00

1.00

 1–2 portions/week

1,383

1.35

1.09 (0.74, 1.62)

1.04 (0.70, 1.54)

0.87

 3–6 portions/week

496

0.39

0.32 (0.10, 0.99)

0.31 (0.10, 0.98)

0.047

 > 6 portions/week

170

0.79

0.64 (0.16, 2.59)

0.63 (0.16, 2.54)

0.52

 per 1 portion

0.89 (0.77, 1.03)

0.88 (0.76, 1.02)

0.09

Sugar sweetened beverages

 < 1 portion/week

12,071

1.13

1.00

1.00

 ≥ 1 portion/week

1,496

1.88

1.67 (1.19, 2.33)

1.58 (1.12, 2.23)

0.009

 per 1 portion

1.05 (1.03, 1.07)

1.05 (1.03, 1.07)

 < 0.001

Pure fruit juice

 < 1 portion/week

13,224

1.20

1.00

1.00

 ≥ 1 portion/week

343

1.57

1.31 (0.65, 2.65)

1.22 (0.60, 2.49)

0.57

 per 1 portion

1.13 (0.95, 1.34)

1.13 (0.94, 1.36)

0.18

Coffee

 < 1 portion/week

13,282

1.20

1.00

1.00

 ≥ 1 portion/week

285

1.69

1.42 (0.67, 3.01)

1.19 (0.56, 2.54)

0.65

 per 1 portion

0.87 (0.56, 1.35)

0.82 (0.52, 1.29)

0.39

Tea

 < 1 portion/week

9,787

1.21

1.00

1.00

 ≥ 1 portion/week

3,780

1.19

0.98 (0.74, 1.30)

1.02 (0.77, 1.35)

0.90

 per 1 portion

1.00 (0.99, 1.01)

1.00 (0.99, 1.01)

0.65

Alcoholic drinks

 < 1 portion/week

13,281

1.20

1.00

1.00

 ≥ 1 portion/week

286

1.69

1.42 (0.67, 3.01)

1.22 (0.56, 2.62)

0.62

 per 1 portion

1.00 (0.82, 1.22)

0.99 (0.73, 1.34)

0.93