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Table 4 Odds ratios of breast cancer risk according to ω-3 fatty acid intake level

From: Fatty fish and fish omega-3 fatty acid intakes decrease the breast cancer risk: a case-control study

 

Total

Premenopausal women

Postmenopausal women

 

Control (n)

Case (n)

Age adjusted Odds ratio

Multivariate Odds ratioa

Control (n)

Case (n)

Age adjusted Odds ratio

Multivariate Odds ratiob

Control (n)

Case (n)

Age adjusted Odds ratio

Multivariate Odds ratioc

ω-3 fatty acid (g/day)

            

   < 0.059

90

134

1.00 (referent)

1.00 (referent)

47

73

1.00 (referent)

1.00 (referent)

43

61

1.00 (referent)

1.00 (referent)

   0.059-<0.143

90

90

0.67(0.45–1.00)

0.83(0.50–1.37)

57

55

0.61(0.36–1.03)

0.83(0.42–1.64)

33

35

0.76(0.41–1.41)

1.01(0.48–2.15)

   0.143-<0.296

90

76

0.56(0.37–0.85)

0.74(0.44–1.24)

46

46

0.62(0.36–1.08)

0.83(0.40–1.70)

44

30

0.49(0.26–0.90)

0.76(0.35–1.61)

   ≥ 0.296

90

58

0.43(0.28–0.66)

0.47(0.27–0.80)

46

36

0.49(0.28–0.87)

0.46(0.22–0.96)

44

22

0.35(0.18–0.68)

0.51(0.22–1.13)

P for trend

  

< 0.001

0.004

  

0.037

0.040

  

0.001

0.068

EPA(20:5n-3) (g/day)

            

   < 0.014

90

124

1.00 (referent)

1.00 (referent)

54

66

1.00 (referent)

1.00 (referent)

36

58

1.00 (referent)

1.00 (referent)

   0.014-<0.041

95

103

0.79(0.53–1.17)

0.90(0.55–1.48)

53

63

0.96(0.57–1.61)

1.11(0.57–2.15)

42

40

0.61(0.33–1.12)

0.81(0.38–1.73)

   0.041-<0.101

85

76

0.65(0.43–0.98)

0.91(0.54–1.55)

47

45

0.78(0.45–1.35)

1.13(0.54–2.33)

38

31

0.52(0.27–0.98)

0.78(0.35–1.74)

   ≥ 0.101

90

55

0.44(0.28–0.68)

0.50(0.28–0.91)

42

36

0.68(0.38–1.22)

0.67(0.30–1.50)

48

19

0.25(0.12–0.49)

0.38(0.15–0.96)

P for trend

  

< 0.001

0.016

  

0.182

0.227

  

< 0.001

0.035

DHA(22:6n-3) (g/day)

            

   < 0.037

90

132

1.00 (referent)

1.00 (referent)

52

72

1.00 (referent)

1.00 (referent)

38

60

1.00 (referent)

1.00 (referent)

   0.037-<0.092

90

90

0.68(0.46–1.01)

0.86(0.52–1.43)

52

54

0.74(0.44–1.26)

0.91(0.46–1.78)

38

36

0.61(0.33–1.14)

0.90(0.42–1.95)

   0.092-<0.213

90

86

0.65(0.43–0.97)

0.77(0.46–1.28)

48

49

0.72(0.42–1.23)

0.93(0.46–1.85)

42

37

0.56(0.31–1.04)

0.81(0.37–1.75)

   ≥ 0.213

90

50

0.37(0.24–0.58)

0.44(0.24–0.79)

44

35

0.56(0.32–1.00)

0.54(0.24–1.20)

46

15

0.21(0.10–0.42)

0.32(0.13–0.82)

P for trend

  

< 0.001

0.004

  

0.075

0.118

  

< 0.001

0.010

  1. a adjusted for age, BMI, family history of breast cancer, supplement use, education level, occupation, alcohol consumption, smoking status, physical activity, parity, total energy intake, menopausal status, age at menarche; b adjusted for age, BMI, family history of breast cancer, supplement use, education level, occupation, alcohol consumption, smoking status, physical activity, parity, total energy intake, age at menarche; c adjusted for age, BMI, family history of breast cancer, supplement use, education level, occupation, alcohol consumption, smoking status, physical activity, parity, total energy intake, postmenopausal hormone use, age at menarche. EPA: Eicosapentaenoic acid, DHA: Docosahexaenoic acid. Energy-adjusted nutrient intakes were computed as the residuals from the regression model with total caloric intake as the independent variable and absolute nutrient intake as the dependent variable.
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BMC Cancer

ISSN: 1471-2407

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