Table 2.
Serum folate concentrations and dietary intake of folate in the study sample of Cretan adults.1
| Serum folate | % ≤7 | Folate intake | % <400 | ||||
| (nmol/l)2 | nmol/l | (μg/d)3 | (μg/1000 kcal/d) | μg/d | |||
| Men | |||||||
| 20–34 y | (n = 107) | 13.8 (12.5–15.3) | 7.5 | (n = 103) | 248 (213–283) | 119 (106–133) | 83.5 |
| 35–50 y | (n = 80) | 16.0 (14.2–18.0) | 6.3 | (n = 72) | 351 (297–406) | 174 (149–198) | 69.4 |
| >50 y | (n = 63) | 18.6 (15.8–21.9)4 | 6.3 | (n = 20) | 325 (242–407)5 | 166 (130–201)6 | 65.0 |
| Total | (n = 250) | 15.6 (14.6–16.8) | 6.8 | (n = 195) | 294 (265–323) | 144 (132–157) | 76.4 |
| Women | |||||||
| 20–34 y | (n = 101) | 17.4 (15.8–19.2) | 3.0 | (n = 96) | 247 (207–288) | 159 (134–184) | 86.5 |
| 35–50 y | (n = 79) | 19.4 (17.2–22.0) | 1.3 | (n = 72) | 242 (198–287) | 155 (133–177) | 88.9 |
| >50 y | (n = 56) | 22.8 (19.3–26.9)7 | 1.8 | (n = 17) | 266 (160–372) | 192 (129–255) | 76.5 |
| Total | (n = 236) | 19.2 (17.9–20.7) | 2.1 | (n = 185) | 247 (219–275) | 161 (144–177) | 86.5 |
1 Data are presented as geometric mean (95% confidence interval).
2 Men had significantly lower serum folate concentrations than women (p < 0.001).
3 Men had significantly higher intake of dietary folate (μg/d) than women (p = 0.003).
4 p = 0.001 (trend by age).
5 p = 0.003 (trend by age).
6p < 0.001 (trend by age).
7p = 0.008 (trend by age).