期刊
BMJ-BRITISH MEDICAL JOURNAL
卷 324, 期 7335, 页码 447-450出版社
BMJ PUBLISHING GROUP
DOI: 10.1136/bmj.324.7335.447
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Objective To determine the relation between intake of seafood in pregnancy and risk of preterm delivery and low birth weight. Design Prospective cohort study. Setting Aarhus, Denmark. Participants 8729 pregnant,omen. Main outcome measures Preterm delivery and low birth weight. Results The occurrence of preterm delivery differed significantly across four groups of seafood intake, falling progressively from 7.1% in the group never consuming fish to 1.9% in the group consuming fish as a hot meal and an open sandwich with fish at least once a week. Adjusted odds for preterm delivery were increased by a Factor of 3.6 (95% confidence interval 1.2 to 11.2) in the zero consumption group compared with the highest consumption group, Analyses based on quantified intakes indicated that the working range of the dose-response relation is mainly from zero intake up to a daily intake of 15 g fish or 0.15 g n-3 fatty acids. Estimates of risk For low birth weight were similar to those for preterm delivery. Conclusions Low consumption of fish was a strong risk factor for preterm delivery and low birth weight. In women with zero or low intake of fish, small amounts of n-3 fatty acids-provided as fish or fish oil-may confer protection against preterm delivery and low birth weight.
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