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Table 4 Odds ratio (OR) and 95% confidence interval (CI) of birth weight and birth length with quintile of omega 6 intakes in the subjects

From: Association of maternal omega-6 fatty acid intake with infant birth outcomes: Korean Mothers and Children’s Environmental Health (MOCEH)

  n-6 FA intakes, quintiles (range, g/d)  
Q1 Q2 Q3 Q4 Q5 P for trend
(0.44–5.70) (5.70–8.07) (8.07–10.76) (10.76–15.16) (15.16–47.57)
Birth weight (n 1078)
 For below 10th% (n 111)
  Unadjusted OR 1.00 0.797 0.717 0.728 1.554 0.424
95% CI   0.420–1.510 0.371–1.383 0.377–1.405 0.885–2.730  
  Adjusteda OR 1.00 0.666 0.680 0.939 2.444 0.010*
95% CI   0.302–1.468 0.293–1.574 0.418–2.108 1.038–5.751  
 For above 90th% (n 116)
  Unadjusted OR 1.00 1.026 0.834 0.725 0.611 0.078
95% CI   0.583–1.807 0.462–1.507 0.393–1.338 0.326–1.146  
  Adjusteda OR 1.00 0.974 0.633 0.716 0.539 0.109
95% CI   0.517–1.836 0.316–1.268 0.350–1.465 0.237–1.224  
Birth length (n 1008)
 For below 10th% (n 100)
  Unadjusted OR 1.00 0.951 0.994 0.476 0.968 0.593
95% CI   0.508–1.779 0.531–1.861 0.224–1.010 0.521–1.799  
  Adjustedb OR 1.00 0.694 1.163 0.501 1.300 0.597
95% CI   0.320–1.503 0.546–2.476 0.200–1.250 0.534–3.165  
 For above 90th% (n 184)
  Unadjusted OR 1.00 0.917 0.963 0.921 0.509 0.015*
95% CI   0.563–1.493 0.591–1.570 0.562–1.509 0.296–0.874  
  Adjustedb OR 1.00 0.985 0.902 0.910 0.432 0.020*
95% CI   0.559–1.735 0.501–1.655 0.501–1.655 0.211–0.884  
  1. *P < 0.05
  2. aAdjusted for maternal age, pre-pregnancy BMI, level of education, neonatal gender, maternal urinary cotinine level (ln), gestational age and energy intake
  3. bAdjusted for maternal age, pre-pregnancy BMI, level of education, neonatal gender, maternal urinary cotinine level (ln), gestational age, energy and vitamin C intake