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Pregnancy Complications and Adverse Birth Outcomes Among Women With Celiac Disease: A Population-Based Study From England

Sultan, Alyshah Abdul PhD1; Tata, Laila J PhD1; Fleming, Kate M PhD1; Crooks, Colin J PhD1; Ludvigsson, Jonas F PhD2, 3; Dhalwani, Nafeesa N PhD1; Ban, Lu PhD1; West, Joe PhD1

American Journal of Gastroenterology: October 2014 - Volume 109 - Issue 10 - p 1653–1661
doi: 10.1038/ajg.2014.196
Colon/Small Bowel
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OBJECTIVES: Evidence-based information about adverse birth outcomes and pregnancy complications is crucial when counseling women with celiac disease (CD); however, limited population-based data on such risks exist. We estimated these for pregnant women with CD diagnosed before and after delivery.

METHODS: We included all singleton pregnancies between 1997 and 2012 using linked primary care data from the Clinical Practice Research Datalink and secondary care Hospital Episode Statistics data. Risks of pregnancy complications (antepartum and postpartum hemorrhage, pre-eclampsia, and mode of delivery) and adverse birth outcomes (preterm birth, stillbirth, and low birth weight) were compared between pregnancies of women with and without CD using logistic/multinomial regression. Risks were stratified on the basis of whether women were diagnosed or yet undiagnosed before delivery.

RESULTS: Of 363,930 pregnancies resulting in a live birth or stillbirth, 892 (0.25%) were among women with CD. Diagnosed CD was not associated with an increased risk of pregnancy complications or adverse birth outcomes compared with women without CD. However, the risk of postpartum hemorrhage and assisted delivery was slightly higher among pregnant women with diagnosed CD (adjusted odds ratio (aOR)=1.34). We found no increased risk of any pregnancy complication among those with undiagnosed CD. We only observed a 1% absolute excess risk of preterm birth and low birth weight among undiagnosed CD mothers corresponding to aOR=1.24 (95% confidence interval (CI)=0.82–1.87) and aOR=1.36 (95% CI=0.83–2.24), respectively.

CONCLUSIONS: Whether diagnosed or undiagnosed during pregnancy, CD is not associated with a major increased risk of pregnancy complications and adverse birth outcomes. These findings are reassuring to both women and clinicians.

1 Division of Epidemiology and Public Health, City Hospital Campus, The University of Nottingham, Nottingham, UK

2 Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden

3 Department of Paediatrics, Örebro University Hospital, Örebro, Sweden

Correspondence: Alyshah Abdul Sultan, Division of Epidemiology and Public Health, City Hospital Campus, The University of Nottingham, Room B126 Clinical Science Building 2, Hucknall Road, Nottingham NG5 1PB, UK. E-mail: alyshah_abdul_sultan@nottingham.ac.uk

Received 24 March 2014; accepted 31 May 2014

published online 5 August 2014

© The American College of Gastroenterology 2014. All Rights Reserved.
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