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Table 3 Potential determinants of maternal erythrocyte polyunsaturated fatty acid composition (% of total FA)

From: Low omega-3 index values and monounsaturated fatty acid levels in early pregnancy: an analysis of maternal erythrocytes fatty acids

Variable n-6 PUFA n-3 PUFA
LA GLA DGLA AA ALA EPA DHA
Age (years) r = −0.20 r = 0.05 r = 0.21 r = − 0.03 r = 0.14 r = 0.20 r = 0.18
Gestational age (weeks) r = − 0.17 r = − 0.06 r = − 0.10 r = − 0.18 r = − 0.05 r = 0.03 r = 0.28
Parity
 Nulliparous 8.50 ± 1.16 0.05 ± 0.01 1.48 ± 0.29 14.3 ± 1.11 0.12 ± 0.04 0.45 ± 0.18 5.07 ± 0.98
 Primiparous 8.44 ± 1.18 0.05 ± 0.01 1.48 ± 0.36 14.5 ± 1.12 0.14 ± 0.06 0.56 ± 0.29 5.32 ± 1.44
 Multiparous 8.42 ± 1.08 0.05 ± 0.01 1.60 ± 0.39 14.2 ± 1.57 0.13 ± 0.05 0.51 ± 0.27 5.34 ± 1.78
BMI class (kg/m2)
  < 25 8.39 ± 1.11 0.05 ± 0.01 1.53 ± 0.36 14.4 ± 1.26 0.13 ± 0.05 0.51 ± 0.24 5.10 ± 1.28
 25–30 8.59 ± 1.28 0.05 ± 0.01 1.49 ± 0.32 13.9 ± 1.18 0.13 ± 0.05 0.56 ± 0.30 5.57 ± 1.73
 ≥ 30 8.28 ± 0.89 0.05 ± 0.01 1.49 ± 0.40 14.7 ± 1.34 0.12 ± 0.03 0.45 ± 0.16 5.52 ± 1.19
Nationality
 Belgian 8.28 ± 1.05 0.05 ± 0.01 1.58 ± 0.37 14.4 ± 1.04 0.14 ± 0.05 0.52 ± 0.21 4.99 ± 1.35
 Other 8.63 ± 1.21 0.05 ± 0.01 1.44 ± 0.31 14.2 ± 1.50 0.11 ± 0.04 0.51 ± 0.29 5.62 ± 1.43
Level of education
 Low 8.53 ± 1.07 0.05 ± 0.01 1.51 ± 0.36 14.4 ± 1.36 0.13 ± 0.06 0.51 ± 0.29 5.19 ± 1.60
 High 8.28 ± 1.22 0.05 ± 0.01 1.53 ± 0.33 14.2 ± 1.08 0.13 ± 0.04 0.53 ± 0.18 5.41 ± 1.04
Smoking status
 Non-smoker 8.49 ± 1.15 0.05 ± 0.01 1.52 ± 0.36 14.2 ± 1.29 0.13 ± 0.05 0.52 ± 0.26 5.41 ± 1.41
 Smoker 8.00 ± 0.84 0.05 ± 0.01 1.52 ± 0.23 14.8 ± 0.95 0.15 ± 0.06 0.51 ± 0.18 4.18 ± 0.95
Physical activity
 Yes 8.39 ± 1.28 0.05 ± 0.01 1.50 ± 0.33 14.1 ± 1.14 0.13 ± 0.04 0.58 ± 0.25 5.81 ± 1.49
 No 8.45 ± 1.07 0.05 ± 0.01 1.52 ± 0.36 14.4 ± 1.31 0.13 ± 0.05 0.49 ± 0.25 5.05 ± 1.33
n-3 PUFA supplement use
 Yes 8.34 ± 1.19 0.05 ± 0.01 1.50 ± 0.32 14.3 ± 1.71 0.13 ± 0.04 0.55 ± 0.22 5.52 ± 1.37
 No 8.46 ± 1.12 0.05 ± 0.01 1.52 ± 0.36 14.3 ± 1.22 0.13 ± 0.05 0.50 ± 0.26 5.19 ± 1.43
EPA supplement intake (mg/day) r = − 0.20 r = − 0.11 r = − 0.03 r = 0.12 r = − 0.05 r = 0.28 r = − 0.01
DHA supplement intake (mg/day) r = − 0.41 r = − 0.04 r = 0.04 r = − 0.26 r = − 0.27 r = 0.56 r = 0.57
  1. Data are presented as mean ± SD or as Pearson correlation coefficient
  2. Bold font indicates P-values less than 0.05