TABLE 2.
Characteristics of 1,797 pregnant women from Massachusetts enrolled in Project Viva who completed first-trimester dietary questionnaires, according to quartile of combined DHA* + EPA* fatty acid intake and frequency of seafood consumption reported during the first trimester of pregnancy, 1999–2002
| First-trimester intake | Continuous characteristics (mean (SD*))
|
Dichotomous characteristics (% of subjects)
|
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Age (years) | Body mass index (kg/m2) | Weight gain (kg/4 weeks) | Height (m) | College graduate | Non-Hispanic White race/ethnicity | Gravidity >1 | Smoked during pregnancy | Non-spontaneous birth | |
| DHA + EPA | |||||||||
| Quartile 1 | 31.4 (5.1) | 24.6 (5.2) | 1.6 (0.6) | 1.64 (0.07) | 64 | 77 | 65 | 5 | 36 |
| Quartile 2 | 31.9 (4.9) | 24.7 (5.0) | 1.5 (0.6) | 1.65 (0.07) | 66 | 76 | 67 | 3 | 36 |
| Quartile 3 | 32.5 (4.7) | 24.5 (5.4) | 1.6 (0.6) | 1.65 (0.07) | 76 | 71 | 70 | 4 | 35 |
| Quartile 4 | 32.1 (4.9) | 24.6 (5.4) | 1.6 (0.5) | 1.65 (0.07) | 75 | 62 | 72 | 4 | 32 |
| p† for trend | <0.0001 | 0.96 | 0.36 | 0.22 | <0.0001 | <0.0001 | 0.02 | 0.47 | 0.18 |
| Seafood | |||||||||
| No intake | 31.0 (5.4) | 24.3 (4.9) | 1.6 (0.5) | 1.64 (0.07) | 60 | 74 | 65 | 6 | 35 |
| Tertile 1 | 31.9 (4.9) | 24.7 (5.2) | 1.6 (0.6) | 1.65 (0.07) | 68 | 75 | 66 | 4 | 35 |
| Tertile 2 | 32.5 (4.8) | 24.5 (5.3) | 1.6 (0.6) | 1.65 (0.07) | 72 | 70 | 69 | 3 | 36 |
| Tertile 3 | 33.1 (4.7) | 24.8 (5.5) | 1.6 (0.5) | 1.65 (0.07) | 73 | 66 | 73 | 4 | 33 |
| p† for trend | <0.0001 | 0.48 | 0.73 | 0.17 | 0.0003 | 0.003 | 0.01 | 0.31 | 0.67 |
*
DHA, docosahexaenoic acid; EPA, eicosapentaenoic acid; SD, standard deviation.
†
Two-sided p value.