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Table 2 Serum folate concentrations and dietary intake of folate in the study sample of Cretan adults.1

From: Dietary and other lifestyle correlates of serum folate concentrations in a healthy adult population in Crete, Greece: a cross-sectional study

   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. 1 Data are presented as geometric mean (95% confidence interval).
  2. 2 Men had significantly lower serum folate concentrations than women (p < 0.001).
  3. 3 Men had significantly higher intake of dietary folate (μg/d) than women (p = 0.003).
  4. 4 p = 0.001 (trend by age).
  5. 5 p = 0.003 (trend by age).
  6. 6 p < 0.001 (trend by age).
  7. 7 p = 0.008 (trend by age).