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Table 3 Results of the regression analyses relating essential fatty acid concentrations in quintiles and pregnancy outcome, defined as small for gestational age SGA and birth weight 1

From: The association between interpregnancy interval and birth weight: what is the role of maternal polyunsaturated fatty acid status?

Fatty acid Birth Weight (g) SGA
  Mean ± SD Beta ± SE2 % of women with SGA birth within quintile Odds ratio (95% CI)3
EPA     
Q1 3595 ± 536 −182.5 ± 39.04 12.7 2.09 (1.32-3.30) 4
Q2 3579 ± 542 −66.1 ± 39.0 13.3 1.42 (0.88-2.31)
Q3 3645 ± 474 0.0 9.7 1.00
Q4 3664 ± 498 18.4 ± 38.9 9.6 0.98 (0.59-1.64)
Q5 3619 ± 489 −26.6 ± 39.0 10.8 1.13 (0.68-1.87)
DHA     
Q1 3518 ± 520 −118.2 ± 39.24 13.3 1.11 (0.70-1.75)
Q2 3593 ± 539 −43.8 ± 39.2 12.7 1.05 (0.66-1.67)
Q3 3636 ± 505 0.0 12.1 1.00
Q4 3602 ± 471 −34.4 ± 39.2 11.7 0.96 (0.60-1.54)
Q5 3621 ± 484 −15.4 ± 39.2 12.0 0.99 (0.62-1.59)
DGLA     
Q1 3467 ± 472 −127.1 ± 38.94 17.2 1.72 (1.10-2.69)4
Q2 3610 ± 520 16.5 ± 38.9 14.8 1.43 (0.90-2.26)
Q3 3594 ± 531 0.0 10.8 1.00
Q4 3634 ± 495 40.0 ± 38.9 11.5 1.07 (0.66-1.74)
Q5 3665 ± 486 71.0 ± 38.9 7.5 0.67 (0.39-1.15)
AA     
Q1 3606 ± 507 −52.8 ± 39.1 10.8 1.07 (0.65-1.76)
Q2 3617 ± 501 −42.2 ± 39.1 9.7 0.94 (0.57-1.57)
Q3 3659 ± 482 0.0 10.2 1.00
Q4 3574 ± 533 −85.0 ± 39.04 13.5 1.37 (0.86-2.21)
Q5 3514 ± 494 −145.0 ± 39.14 17.6 1.88 (1.19-2.95)4
  1. 1 Linear regression analysis with birth weight as dependent variable and fatty acid concentration as independent variable. n=1659 mother-infant pairs. Q1 to Q5 represents the quintile distribution of the relative concentrations given in Table 3. EPA, eicosapentaenoic acid (20:5 n-3); DHA, docosahexaenoic acid (22:6 n-3), DGLA; dihomo-γ-linolenic acid (20:3 n-6), AA; arachidonic acid (20:4 n-6). The middle quintile, Q3, used as reference category.
  2. 2 Difference between the mean birth weight in the specific quintile and that of the reference quintile.
  3. 3 Odds ratio (95% CI).
  4. 4 p<0.05.