Table 2. Fatty acid intakes (g/day) assessed with FFQ1 by area.
| Ninohe PHC area | Yokote PHC area | Saku PHC area | Ishikawa PHC area | ANOVA P-value |
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| Mean | ± SD | Median | Mean | ± SD | Median | Mean | ± SD | Median | Mean | ± SD | Median | ||
| Men | n=24 | n=28 | n=23 | n=27 | |||||||||
| SFA2 | 21.7 | ± 13.2 | 17.4 | 15.5 | ± 7.5 | 13.9 | 17.7 | ± 6.2 | 17.4 | 16.7 | ± 6.9 | 17.6 | 0.076 |
| 14:0 | 1.9 | ± 1.7 | 1.5 | 1.2 | ± 0.7 | 1.0 | 1.5 | ± 0.7 | 1.4 | 1.2 | ± 0.6 | 1.1 | 0.070 |
| 16:0 | 11.6 | ± 6.6 | 9.5 | 8.3 | ± 3.9 | 7.3 | 9.4 | ± 3.4 | 9.1 | 9.3 | ± 3.9 | 9.5 | 0.082 |
| 18:0 | 4.9 | ± 2.8 | 4.0 | 3.5 | ± 1.9 | 2.9 | 3.9 | ± 1.5 | 4.0 | 4.0 | ± 1.9 | 4.2 | 0.121 |
| MUFA2 | 27.5 | ± 14.3 | 24.2 | 20.9 | ± 9.3 | 18.6 | 22.8 | ± 8.1 | 23.9 | 22.6 | ± 10.0 | 24.8 | 0.161 |
| 16:1 | 1.4 | ± 0.9 | 1.1 | 1.0 | ± 0.4 | 0.9 | 1.0 | ± 0.4 | 1.1 | 1.1 | ± 0.5 | 1.1 | 0.054 |
| 18:1 | 23.1 | ± 12.1 | 20.7 | 17.8 | ± 8.3 | 15.6 | 19.6 | ± 7.3 | 20.7 | 19.8 | ± 8.9 | 21.6 | 0.236 |
| PUFA2 | 18.1 | ± 8.4 | 15.8 | 14.2 | ± 6.3 | 12.9 | 14.7 | ± 4.7 | 15.9 | 11.4 | ± 4.9 | 11.3 | 0.004 |
| n-3 PUFA | 5.0 | ± 3.0 | 4.2 | 3.6 | ± 1.7 | 3.2 | 3.6 | ± 1.2 | 3.9 | 2.5 | ± 1.1 | 2.6 | 0.000 |
| 18:3n-3 | 2.5 | ± 1.3 | 2.3 | 2.0 | ± 1.0 | 1.9 | 2.1 | ± 0.8 | 2.2 | 1.8 | ± 0.9 | 1.7 | 0.089 |
| 20:5n-3 | 0.7 | ± 0.6 | 0.7 | 0.4 | ± 0.3 | 0.4 | 0.4 | ± 0.2 | 0.5 | 0.2 | ± 0.1 | 0.2 | 0.000 |
| 22:5n-3 | 0.2 | ± 0.1 | 0.2 | 0.1 | ± 0.1 | 0.1 | 0.1 | ± 0.0 | 0.1 | 0.1 | ± 0.0 | 0.1 | 0.000 |
| 22:6n-3 | 1.2 | ± 0.9 | 1.1 | 0.7 | ± 0.4 | 0.6 | 0.7 | ± 0.3 | 0.8 | 0.4 | ± 0.2 | 0.4 | 0.000 |
| n-6 PUFA | 13.1 | ± 5.6 | 11.9 | 10.5 | ± 4.7 | 9.3 | 11.1 | ± 3.6 | 12.0 | 8.9 | ± 3.8 | 8.4 | 0.014 |
| 18:2n-6 | 11.2 | ± 5.1 | 9.9 | 8.9 | ± 4.6 | 7.8 | 9.5 | ± 3.4 | 10.1 | 7.7 | ± 3.5 | 7.7 | 0.034 |
| 20:3n-6 | 0.03 | ± 0.02 | 0.03 | 0.02 | ± 0.01 | 0.02 | 0.02 | ± 0.01 | 0.02 | 0.02 | ± 0.01 | 0.02 | 0.002 |
| 20:4n-6 | 0.2 | ± 0.1 | 0.2 | 0.1 | ± 0.1 | 0.1 | 0.1 | ± 0.1 | 0.1 | 0.1 | ± 0.1 | 0.1 | 0.001 |
| n-6/n-3 ratio | 2.9 | ± 0.7 | 2.7 | 3.0 | ± 0.6 | 2.9 | 3.1 | ± 0.6 | 3.1 | 3.6 | ± 0.7 | 3.5 | 0.001 |
| PUFA/SFA ratio | 0.9 | ± 0.3 | 0.9 | 1.0 | ± 0.2 | 0.9 | 0.9 | ± 0.3 | 0.9 | 0.7 | ± 0.1 | 0.7 | 0.001 |
| TFA2 | 67.4 | ± 33.4 | 58.6 | 50.7 | ± 22.4 | 44.9 | 55.2 | ± 18.0 | 55.3 | 50.8 | ± 21.5 | 53.8 | 0.057 |
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| Women | n=27 | n=30 | n=28 | n=28 | |||||||||
| SFA | 18.6 | ± 8.4 | 17.5 | 15.3 | ± 5.6 | 14.3 | 20.3 | ± 13.6 | 16.4 | 16.4 | ± 6.8 | 14.2 | 0.150 |
| 14:0 | 1.6 | ± 0.8 | 1.5 | 1.2 | ± 0.6 | 1.0 | 1.7 | ± 1.3 | 1.3 | 1.5 | ± 0.7 | 1.3 | 0.159 |
| 16:0 | 9.9 | ± 4.7 | 8.8 | 8.2 | ± 3.0 | 7.6 | 10.9 | ± 7.6 | 8.7 | 8.6 | ± 3.5 | 7.6 | 0.150 |
| 18:0 | 4.2 | ± 2.1 | 3.5 | 3.4 | ± 1.4 | 3.1 | 4.5 | ± 3.1 | 3.6 | 3.7 | ± 1.7 | 3.2 | 0.203 |
| MUFA | 24.7 | ± 13.1 | 19.9 | 20.3 | ± 7.7 | 18.8 | 27.5 | ± 22.0 | 22.6 | 19.9 | ± 8.0 | 19.2 | 0.127 |
| 16:1 | 1.1 | ± 0.6 | 1.0 | 0.9 | ± 0.4 | 0.9 | 1.2 | ± 1.0 | 1.0 | 0.9 | ± 0.4 | 0.8 | 0.142 |
| 18:1 | 21.0 | ± 11.4 | 16.6 | 17.4 | ± 6.8 | 16.0 | 23.9 | ± 19.1 | 19.6 | 17.5 | ± 7.1 | 16.8 | 0.139 |
| PUFA | 16.7 | ± 8.6 | 13.1 | 13.7 | ± 5.6 | 12.3 | 17.7 | ± 17.3 | 13.4 | 10.6 | ± 3.5 | 10.4 | 0.043 |
| n-3 PUFA | 4.6 | ± 2.9 | 3.7 | 3.5 | ± 1.7 | 3.3 | 4.6 | ± 5.0 | 3.3 | 2.4 | ± 0.9 | 2.2 | 0.019 |
| 18:3n-3 | 2.5 | ± 1.5 | 1.8 | 2.1 | ± 1.0 | 1.9 | 2.6 | ± 2.5 | 2.0 | 1.7 | ± 0.6 | 1.6 | 0.122 |
| 20:5n-3 | 0.6 | ± 0.5 | 0.4 | 0.4 | ± 0.3 | 0.3 | 0.6 | ± 0.9 | 0.4 | 0.2 | ± 0.1 | 0.1 | 0.003 |
| 22:5n-3 | 0.2 | ± 0.1 | 0.1 | 0.1 | ± 0.1 | 0.1 | 0.1 | ± 0.2 | 0.1 | 0.0 | ± 0.0 | 0.0 | 0.005 |
| 22:6n-3 | 1.0 | ± 0.8 | 0.7 | 0.7 | ± 0.4 | 0.6 | 0.9 | ± 1.2 | 0.7 | 0.3 | ± 0.2 | 0.3 | 0.003 |
| n-6 PUFA | 12.1 | ± 5.9 | 10.1 | 10.2 | ± 4.0 | 9.3 | 13.1 | ± 12.3 | 10.0 | 8.2 | ± 2.7 | 8.4 | 0.062 |
| 18:2n-6 | 10.7 | ± 5.6 | 8.7 | 8.7 | ± 3.8 | 7.9 | 11.7 | ± 12.0 | 9.0 | 7.2 | ± 2.5 | 7.3 | 0.079 |
| 20:3n-6 | 0.02 | ± 0.01 | 0.02 | 0.02 | ± 0.01 | 0.02 | 0.03 | ± 0.02 | 0.02 | 0.02 | ± 0.01 | 0.02 | 0.053 |
| 20:4n-6 | 0.2 | ± 0.1 | 0.1 | 0.1 | ± 0.1 | 0.1 | 0.2 | ± 0.2 | 0.2 | 0.1 | ± 0.0 | 0.1 | 0.015 |
| n-6/n-3 ratio | 2.9 | ± 0.7 | 2.8 | 3.0 | ± 0.5 | 3.1 | 3.0 | ± 0.5 | 3.0 | 3.6 | ± 0.7 | 3.3 | 0.000 |
| PUFA/SFA ratio | 0.9 | ± 0.3 | 0.8 | 0.9 | ± 0.2 | 0.9 | 0.9 | ± 0.3 | 0.8 | 0.7 | ± 0.1 | 0.7 | 0.000 |
| TFA | 60.1 | ± 28.9 | 50.7 | 49.3 | ± 18.1 | 45.6 | 65.6 | ± 52 | 52.1 | 47.0 | ± 17.9 | 43.6 | 0.101 |
1FFQ, food frequency questionnaire.
2TFA, total fatty acid; SFA, saturated fatty acid; MUFA, monounsaturated fatty acid; PUFA, polyunsaturated fatty acid.