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Author Sevelsted, A.; Stokholm, J.; Bisgaard, H. url  doi
openurl 
  Title Risk of Asthma from Cesarean Delivery Depends on Membrane Rupture Type Journal Article
  Year (down) 2016 Publication The Journal of Pediatrics Abbreviated Journal J Pediatr  
  Volume 171 Issue Pages 38-42.e4  
  Keywords  
  Abstract OBJECTIVE: To assess our prospective mother-child cohort and the national registry data to analyze the risk of asthma by delivery mode and whether cesarean delivery before or after membrane rupture affects this risk differently. STUDY DESIGN: The Copenhagen Prospective Studies on Asthma in Childhood2000 is a high-risk birth cohort of 411 Danish children. Asthma was diagnosed prospectively by physicians at the research site, and associations with cesarean delivery were investigated using Cox proportional hazard models. From the Danish national prospective registry we included data from 1997-2010. Childhood asthma was defined from recurrent use of inhaled corticosteroids filled at pharmacies. Cesarean delivery was classified as either before or after rupture of membranes, and the risk of asthma was compared with vaginal delivery. Results were adjusted stepwise for age and calendar year, sex, birth weight, gestational age, multiple births, parity, and maternal factors (age, smoking/antibiotics during pregnancy, employment status, and asthma). RESULTS: In the Copenhagen Prospective Studies on Asthma in Childhood2000 cohort, the adjusted hazard ratio for asthma was increased by cesarean delivery relative to vaginal birth 2.18 (1.27-3.73). Registry data replicated these findings. Cesarean delivery performed before rupture of membranes carried significantly higher risk of asthma, (incidence rate ratio to vaginal delivery 1.20 [1.16-1.23]) than cesarean delivery after rupture of membranes (incidence rate ratio to vaginal delivery 1.12 [1.09-1.16]). CONCLUSIONS: We confirmed cesarean delivery to be a risk factor for childhood asthma. This effect was more pronounced for cesarean delivery performed before rupture of membranes.  
  Address Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark. Electronic address: bisgaard@copsac.com  
  Corporate Author Thesis  
  Impact Factor 03,790 First Author Sevelsted, A. Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Senior Author Bisgaard, H.  
  ISSN 0022-3476 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:26825289 Approved no  
  Call Number Serial 26  
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