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 |
Total fish (g/day) | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   < 9.99 | 90 | 122 | 1.00 (referent) | 1.00 (referent) | 47 | 70 | 1.00 (referent) | 1.00 (referent) | 43 | 52 | 1.00 (referent) | 1.00 (referent) |
   9.99-<17.51 | 90 | 80 | 0.65(0.43–0.98) | 0.64(0.38–1.07) | 49 | 52 | 0.69(0.40–1.19) | 0.57(0.27–1.19) | 41 | 28 | 0.57(0.30–1.08) | 0.55(0.26–1.19) |
   17.51-<33.70 | 90 | 80 | 0.65(0.43–0.98) | 0.57(0.34–0.95) | 56 | 44 | 0.52(0.30–0.90) | 0.38(0.18–0.78) | 34 | 36 | 0.89(0.48–1.67) | 1.02(0.47–2.22) |
   ≥ 33.70 | 90 | 76 | 0.62(0.41–0.93) | 0.55(0.32–0.96) | 44 | 44 | 0.65(0.37–1.14) | 0.49(0.22–1.10) | 46 | 32 | 0.59(0.32–1.09) | 0.62(0.28–1.39) |
P for trend | Â | Â | 0.054 | 0.063 | Â | Â | 0.157 | 0.094 | Â | Â | 0.205 | 0.475 |
Lean fish (g/day) | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   < 4.63 | 90 | 98 | 1.00 (referent) | 1.00 (referent) | 52 | 56 | 1.00 (referent) | 1.00 (referent) | 38 | 42 | 1.00 (referent) | 1.00 (referent) |
   4.63-<8.53 | 90 | 70 | 0.71(0.46–1.08) | 0.74(0.43–1.26) | 49 | 45 | 0.84(0.48–1.46) | 0.86(0.42–1.78) | 41 | 25 | 0.53(0.27–1.04) | 0.43(0.19–0.98) |
   8.53-<15.27 | 89 | 70 | 0.72(0.47–1.10) | 0.61(0.36–1.04) | 52 | 45 | 0.78(0.45–1.36) | 0.60(0.29–1.22) | 37 | 25 | 0.62(0.31–1.22) | 0.50(0.22–1.16) |
   ≥ 15.27 | 91 | 120 | 1.20(0.81–1.79) | 1.21(0.72–2.04) | 43 | 64 | 1.34(0.78–2.32) | 1.22(0.58–2.57) | 48 | 56 | 1.07(0.59–1.92) | 1.02(0.47–2.21) |
P for trend | Â | Â | 0.102 | 0.236 | Â | Â | 0.181 | 0.551 | Â | Â | 0.286 | 0.328 |
Fatty fish (g/day) | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   < 3.42 | 90 | 147 | 1.00 (referent) | 1.00 (referent) | 44 | 63 | 1.00 (referent) | 1.00 (referent) | 44 | 69 | 1.00 (referent) | 1.00 (referent) |
   3.42-<8.18 | 90 | 79 | 0.53(0.36–0.80) | 0.65(0.39–1.08) | 50 | 69 | 0.64(0.37–1.16) | 0.65(0.31–1.35) | 44 | 30 | 0.43(0.24–0.79) | 0.64(0.31–1.31) |
   8.18-<15.39 | 90 | 91 | 0.61(0.41–0.91) | 0.54(0.32–0.90) | 52 | 55 | 0.62(0.37–1.04) | 0.50(0.25–0.99) | 34 | 32 | 0.61(0.33–1.14) | 0.64(0.29–1.42) |
   ≥ 15.39 | 90 | 41 | 0.27(0.17–0.44) | 0.23(0.13–0.42) | 50 | 23 | 0.29(0.16–0.54) | 0.19(0.08–0.45) | 42 | 17 | 0.26(0.13–0.52) | 0.27(0.11–0.66) |
P for trend | Â | Â | < .001 | < .001 | Â | Â | < 0.001 | < 0.001 | Â | Â | < 0.001 | 0.005 |