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Table 3 Univariate associations between basic characteristics and PUFA levels in maternal and cord blood erythrocyte (Continuous data)

From: Determinants of polyunsaturated fatty acid concentrations in erythrocytes of pregnant Japanese women from a birth cohort study: study protocol and baseline findings of an adjunct study of the Japan environment & Children’s study

Variables Maternal blood Cord blood
n DHA log-EPA ARA n DHA log-EPA ARA
Age at blood collection 1524 0.157 (<.0001) 0.151 (<.0001) −0.113 (<.0001) - - - -
Age at delivery - - - - 1439 0.048 (0.068) 0.083 (0.0016) −0.068 (0.010)
Prepregnancy BMI 1547 −0.033 (0.19) −0.014 (0.59) −0.019 (0.46) 1442 0.002 (0.93) 0.009 (0.72) 0.003 (0.92)
Body weight gain at blood collection 1544 0.022 (0.39) 0.068 (0.0076) −0.058 (0.023) - - - -
Body weight gain at delivery - - - - 1439 0.097 (0.0002) 0.033 (0.21) −0.028 (0.29)
Gestational age at blood collection 1544 0.005 (0.85) 0.0043 (0.87) −0.013 (0.61)     
Gestational age at birth - - - - 1442 0.183 (<.0001) 0.005 (0.86) −0.14 (<.0001)
Physical activity 1528 −0.021 (0.42) −0.049 (0.056) 0.037 (0.16) 1432 −0.017 (0.53) −0.025 (0.34) 0.034 (0.20)
Fish intake 1524 0.186 (<.0001) 0.233 (<.0001) −0.149 (<.0001) 1428 0.109 (<.0001) 0.171 (<.0001) −0.135 (<.0001)
Meat intake 1525 −0.040 (0.12) −0.031 (0.23) 0.072 (0.0052) 1429 −0.043 (0.10) −0.048 (0.070) 0.044 (0.87)
Each PUFA in maternal blood - - - - 1442 0.349 (<.0001) 0.625 (<.0001) 0.334 (<.0001)
  1. Examined with Pearson correlation, r (p)