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Author Bisgaard, H.; Stokholm, J.; Chawes, B.L.; Vissing, N.H.; Bjarnadottir, E.; Schoos, A.-M.M.; Wolsk, H.M.; Pedersen, T.M.; Vinding, R.K.; Thorsteinsdottir, S.; Folsgaard, N.V.; Fink, N.R.; Thorsen, J.; Pedersen, A.G.; Waage, J.; Rasmussen, M.A.; Stark, K.D.; Olsen, S.F.; Bonnelykke, K. url  doi
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  Title Fish Oil-Derived Fatty Acids in Pregnancy and Wheeze and Asthma in Offspring Type Journal Article
  Year (down) 2016 Publication The New England Journal of Medicine Abbreviated Journal N Engl J Med  
  Volume 375 Issue 26 Pages 2530-2539  
  Keywords  
  Abstract Background Reduced intake of n-3 long-chain polyunsaturated fatty acids (LCPUFAs) may be a contributing factor to the increasing prevalence of wheezing disorders. We assessed the effect of supplementation with n-3 LCPUFAs in pregnant women on the risk of persistent wheeze and asthma in their offspring. Methods We randomly assigned 736 pregnant women at 24 weeks of gestation to receive 2.4 g of n-3 LCPUFA (fish oil) or placebo (olive oil) per day. Their children formed the Copenhagen Prospective Studies on Asthma in Childhood2010 (COPSAC2010) cohort and were followed prospectively with extensive clinical phenotyping. Neither the investigators nor the participants were aware of group assignments during follow-up for the first 3 years of the children's lives, after which there was a 2-year follow-up period during which only the investigators were unaware of group assignments. The primary end point was persistent wheeze or asthma, and the secondary end points included lower respiratory tract infections, asthma exacerbations, eczema, and allergic sensitization. Results A total of 695 children were included in the trial, and 95.5% completed the 3-year, double-blind follow-up period. The risk of persistent wheeze or asthma in the treatment group was 16.9%, versus 23.7% in the control group (hazard ratio, 0.69; 95% confidence interval [CI], 0.49 to 0.97; P=0.035), corresponding to a relative reduction of 30.7%. Prespecified subgroup analyses suggested that the effect was strongest in the children of women whose blood levels of eicosapentaenoic acid and docosahexaenoic acid were in the lowest third of the trial population at randomization: 17.5% versus 34.1% (hazard ratio, 0.46; 95% CI, 0.25 to 0.83; P=0.011). Analyses of secondary end points showed that supplementation with n-3 LCPUFA was associated with a reduced risk of infections of the lower respiratory tract (31.7% vs. 39.1%; hazard ratio, 0.75; 95% CI, 0.58 to 0.98; P=0.033), but there was no statistically significant association between supplementation and asthma exacerbations, eczema, or allergic sensitization. Conclusions Supplementation with n-3 LCPUFA in the third trimester of pregnancy reduced the absolute risk of persistent wheeze or asthma and infections of the lower respiratory tract in offspring by approximately 7 percentage points, or one third. (Funded by the Lundbeck Foundation and others; ClinicalTrials.gov number, NCT00798226 .).  
  Address From COPSAC (Copenhagen Prospective Studies on Asthma in Childhood), Herlev and Gentofte Hospital, University of Copenhagen (H.B., J.S., B.L.C., N.H.V., E.B., A.-M.M.S., H.M.W., T.M.P., R.K.V., S.T., N.V.F., N.R.F., J.T., J.W., M.A.R., K.B.), and the Center for Fetal Programming, Statens Serum Institut (S.F.O.), Copenhagen, the Department of Pediatrics, Naestved Hospital, Naestved (J.S., E.B., T.M.P., R.K.V.), DTU Bioinformatics, Technical University of Denmark, Kongens Lyngby (A.G.P.), and Faculty of Science, Chemometrics and Analytical Technology, University of Copenhagen (M.A.R.) – all in Denmark; the Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada (K.D.S.); and the Department of Nutrition, Harvard School of Public Health, Boston (S.F.O.)  
  Corporate Author Thesis  
  Impact Factor 55,873 First Author Bisgaard, H. Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Senior Author Bonnelykke, K.  
  ISSN 0028-4793 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28029926 Approved no  
  Call Number Serial 334  
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