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Table 3 Odds ratios of PB, LBW and SGA, according to frequency of seafood intake

From: Maternal fish and shellfish intake and pregnancy outcomes: A prospective cohort study in Brittany, France

  Frequency of adverse outcomes (%) Models 1 and 2a,c OR (95%CI) Model 3b,c OR (95%CI)
  PB LBW SGA PB LBWd SGA PB LBWd SGA
Frequency of fish intake     Model 1    
<1 time a month n = 406 4.5 4.4 7.1 1 1 1 1 1 1
1–4 times a month n = 1266 4.6 3.3 5.1 1.01 (0.58–1.78) 0.62 (0.24–1.61) 0.79 (0.48–1.29) 1.06 (0.60–1.87) 0.59 (0.23–1.55) 0.72 (0.44–1.19)
≥2 times a week n = 606 3.0 1.8 4.5 0.65 (0.32–1.32) 0.65 (0.21–2.09) 0.68 (0.37–1.22) 0.71 (0.35–1.46) 0.59 (0.18–1.91) 0.57 (0.31–1.05)
p (linear trend) 0.1 0.008 0.04 0.2 0.5 0.2 0.3 0.4 0.07
Frequency of shellfish intake     Model 2    
<1 time a month n = 1548 4.6 3.4 4.8 1 1 1 1 1 1
1–4 times a month n = 548 3.3 2.4 5.7 0.77 (0.45–1.32) 1.06 (0.44–2.52) 1.21 (0.77–1.91) 0.81 (0.47–1.39) 1.09 (0.45–2.62) 1.33 (0.83–2.11)
≥2 times a week n = 182 2.8 3.3 7.7 0.62 (0.24–1.57) 2.10 (0.67–6.59) 1.89 (1.01–3.52) 0.66 (0.26–1.70) 2.24 (0.70–7.15) 2.14 (1.13–4.07)
p (linear trend) 0.06 0.3 0.05 0.2 0.3 0.05 0.3 0.2 0.02
  1. PB: Preterm Birth; LBW: Low Birthweight; SGA: Small for Gestational Age; BMI: Body Mass Index; p: degree of significance
  2. a adjusted models including either fish (model 1) OR shellfish (model 2) consumption. b adjusted model including both fish AND shellfish consumption. c adjusted for maternal age, marital status, education level, parity, bmi, height, smoking status, alcohol consumption, diabetes and sex of the child. dadjusted for duration of gestation