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 | Case | P | Control | Case | p | Control | Case | P |
 | (n = 360) | (n = 358) |  | (n = 196) | (n = 210) |  | (n = 164) | (n = 148) |  |
Total fish (g/day) | 24.1 ± 21.1/17.5 | 21.8 ± 21.3/15.5 | 0.012 | 22.9 ± 18.1/18.2 | 21.7 ± 21.1/14.8 | 0.214 | 25.6 ± 24.1/17.1 | 22.0 ± 21.8/16.2 | 0.022 |
   Lean fish | 12.0 ± 11.2/8.5 | 14.1 ± 14.9/9.2 | 0.916 | 10.6 ± 8.5/8.3 | 13.4 ± 14.1/8.5 | 0.494 | 13.6 ± 13.6/9.4 | 15.1 ± 16.1/10.5 | 0.637 |
   Fatty fish | 12.1 ± 13.4/8.1 | 7.6 ± 9.7/4.5 | < 0.001 | 12.3 ± 13.1/8.7 | 8.2 ± 10.3/5.0 | < 0.001 | 11.9 ± 13.9/6.3 | 6.8 ± 8.8/3.6 | < 0.001 |
   ω-3 fatty acid (g/day) | 0.228 ± 0.278/0.143 | 0.168 ± 0.227/0.090 | < 0.001 | 0.216 ± 0.294/0.128 | 0.179 ± 0.244/0.098 | 0.089 | 0.242 ± 0.259/0.157 | 0.152 ± 0.201/0.079 | < 0.001 |
   EPA(20:5n-3) | 0.085 ± 0.147/0.041 | 0.054 ± 0.089/0.025 | < 0.001 | 0.083 ± 0.172/0.035 | 0.057 ± 0.098/0.027 | 0.017 | 0.089 ± 0.111/0.044 | 0.050 ± 0.075/0.022 | < 0.001 |
   DHA(22:6n-3) | 0.174 ± 0.261/0.092 | 0.115 ± 0.174/0.056 | < 0.001 | 0.166 ± 0.296/0.082 | 0.123 ± 0.192/0.061 | 0.084 | 0.184 ± 0.213/0.105 | 0.104 ± 0.146/0.051 | < 0.001 |
Energy (kcal/day) | 1752.5 ± 548.5 | 1813.8 ± 492.9 | 0.032 | 1797.6 ± 574.9 | 1811.1 ± 460.8 | 0.353 | 1698.5 ± 511.6 | 1817.8 ± 536.8 | 0.039 |