Table 4.
Estimated serum and RBC folate concentrations by quartile of intake assessed by F-FFQ among Serbian women of reproductive age.
| Quartiles | Folate Intake (µg/Day) | n | Serum Folate (nmol/L) | RBC Folate (nmol/L) | ||||
|---|---|---|---|---|---|---|---|---|
| Mean | 95% CI | p for Trend | Mean | 95% CI | p for Trend | |||
| 1st quartile | <168.43 (147.31) | 13 | 9.54 | 5.73–13.35 | 378.29 | 304.73–451.84 | ||
| 2nd quartile | 168.43–194.12 (182,60) | 13 | 11.48 | 7.51–15.45 | 399.05 | 306.61–491.48 | ||
| 3rd quartile | 194.12–245.62 (217.37) | 12 | 12.18 | 8.78–15.58 | 447.27 | 358.51–536.02 | ||
| 4th quartile | 245.62–362.34 (306.81) | 12 | 15.90 | 11.51–20.29 | 0.0139 | 526.05 | 444.62–607.48 | 0.0113 |
RBC, red blood cells.