Table 4. Crude values of dietary folate, vitamins B6 and B12 assessed with FFQ, according to quintile of plasma concentrations in men.
| Dietary intake | Quintile of plasma concentration | |||||||||||||||||||||||
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| Lowest | 2nd | 3rd | 4th | ighest | ||||||||||||||||||||
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| (n) | Mean | ± | SD | (n) | Mean | ± | SD | Ratio | (n) | Mean | ± | SD | Ratio | (n) | Mean | ± | SD | Ratio | (n) | Mean | ± | SD | Ratio | |
| Folate (μg/day) | (18) | 297 | ± | 86 | (17) | 304 | ± | 72 | 1.02 | (18) | 317 | ± | 60 | 1.07 | (17) | 322 | ± | 89 | 1.08 | (17) | 361 | ± | 107 | 1.22 |
| Vitamin B6 (mg/day) | (17) | 1.97 | ± | 0.27 | (18) | 1.93 | ± | 0.22 | 0.98 | (17) | 2.02 | ± | 0.30 | 1.03 | (18) | 2.03 | ± | 0.37 | 1.03 | (17) | 2.10 | ± | 0.28 | 1.07 |
| Vitamin B12 (μg/day) | (17) | 13.5 | ± | 8.3 | (17) | 10.7 | ± | 6.1 | 0.79 | (18) | 12.5 | ± | 5.7 | 0.93 | (17) | 11.5 | ± | 3.9 | 0.85 | (17) | 12.4 | ± | 5.0 | 0.92 |