Table 3. Spearman correlation coefficient between dietary fatty acid intake estimated by FFQ and dietary records and corresponding fatty acids by composition of serum PL at early and late pregnancy.
| FFQ and DR | FFQ and serum PL | |||||||
|---|---|---|---|---|---|---|---|---|
| g/day | % of TFA | μg/ml | % of TFA | |||||
| Early pregnancy | (n = 188) | (n = 186) | ||||||
| n-3 PUFA | 0.33 | ∗∗∗ | 0.35 | ∗∗∗ | 0.13 | 0.29 | ∗∗∗ | |
| α-linolenic acid | 0.18 | ∗ | 0.11 | 0.13 | 0.22 | ∗∗ | ||
| EPA | 0.38 | ∗∗∗ | 0.33 | ∗∗∗ | 0.37 | ∗∗∗ | 0.45 | ∗∗∗ |
| DHA | 0.40 | ∗∗∗ | 0.32 | ∗∗∗ | 0.27 | ∗∗ | 0.35 | ∗∗∗ |
| n-6 PUFA | 0.24 | ∗∗ | 0.21 | ∗∗ | 0.04 | 0.23 | ∗∗ | |
| Linoleic acid | 0.23 | ∗∗ | 0.21 | ∗∗ | 0.07 | 0.26 | ∗∗ | |
| Arachidonic acid | 0.33 | ∗∗∗ | 0.21 | ∗∗ | 0.02 | 0.18 | ∗ | |
| Late pregnancy | (n = 169) | (n = 153) | ||||||
| n-3 PUFA | 0.32 | ∗∗∗ | 0.18 | ∗ | 0.15 | 0.30 | ∗∗ | |
| α-linolenic acid | 0.32 | ∗∗∗ | 0.08 | 0.05 | 0.10 | |||
| EPA | 0.37 | ∗∗∗ | 0.32 | ∗∗∗ | 0.33 | ∗∗∗ | 0.33 | ∗∗∗ |
| DHA | 0.34 | ∗∗∗ | 0.30 | ∗∗∗ | 0.28 | ∗∗ | 0.34 | ∗∗∗ |
| n-6 PUFA | 0.35 | ∗∗∗ | 0.25 | ∗∗ | 0.03 | −0.02 | ||
| Linoleic acid | 0.35 | ∗∗∗ | 0.25 | ∗∗ | 0.02 | 0.00 | ||
| Arachidonic acid | 0.29 | ∗∗ | 0.21 | ∗∗ | 0.08 | 0.13 | ||
DHA, docosahexaenoic acids; DR, dietary records; EPA, eicosapentaenoic acids; FFQ, food frequency questionnaire; n-3 PUFA, n-3 polyunsaturated fatty acids; n-6 PUFA, n-6 polyunsaturated fatty acids; PL, phospholipids; TFA, total fatty acids.