Back to Browse Journals » Clinical and Experimental Gastroenterology » Volume 7

Autism spectrum disorders in children of parents with inflammatory bowel disease – a nationwide cohort study in Denmark

Authors Andersen ABT, Ehrenstein V, Erichsen R, Frøslev T, Sørensen HT

Received 17 December 2013

Accepted for publication 25 February 2014

Published 7 May 2014 Volume 2014:7 Pages 105—110


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Ane Birgitte Telén Andersen, Vera Ehrenstein, Rune Erichsen, Trine Frøslev, Henrik Toft Sørensen

Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark

Purpose: Inflammatory bowel disease (IBD) and autism spectrum disorders (ASD) may share genetic and environmental risk factors. We examined whether parental IBD is associated with an increased risk of ASD in offspring.
Methods: We conducted a registry-based nationwide cohort study including children born alive in Denmark from January 1, 1994 to December 31, 2009, with follow-up throughout 2010. IBD in parents and ASD in offspring were identified using inpatient and outpatient hospital diagnoses. We computed risk of ASD and crude and adjusted incidence rate ratios (aIRRs) with 95% confidence intervals (CI) using Cox proportional-hazards regression. We evaluated the risk of ASD according to maternal and paternal IBD, and separately for maternal and paternal Crohn's disease (CD) and ulcerative colitis (UC). Children with parents free of IBD were the comparison cohort.
Results: We identified 1,005,330 children during the study period. Among them, 11,888 (1.2%) had a parent with IBD and 8,087 (0.8%) had a diagnosis of ASD during up to 17 years of follow-up. The 10-year risks of ASD were 0.7% among children of parents with IBD and 0.9% among children of parents without IBD. The aIRR for ASD among children with parental IBD was 0.8 (95% CI: 0.6–1.0), and results were similar regardless of parent of IBD origin or whether a parent had CD or UC. The estimates were similar for different ASD subtypes.
Conclusion: We found no evidence of an increased risk of ASD among children born to parents with IBD.

Keywords: autistic disorder, children, cohort study, epidemiology, inflammatory bowel disease, parents

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]


Other article by this author:

Use of prescription paracetamol during pregnancy and risk of asthma in children: a population-based Danish cohort study

Andersen ABT, Farkas DK, Mehnert F, Ehrenstein V, Erichsen R

Clinical Epidemiology 2012, 4:33-40

Published Date: 1 February 2012

Readers of this article also read:

Emerging and future therapies for hemophilia

Carr ME, Tortella BJ

Journal of Blood Medicine 2015, 6:245-255

Published Date: 3 September 2015

Green synthesis of water-soluble nontoxic polymeric nanocomposites containing silver nanoparticles

Prozorova GF, Pozdnyakov AS, Kuznetsova NP, Korzhova SA, Emel’yanov AI, Ermakova TG, Fadeeva TV, Sosedova LM

International Journal of Nanomedicine 2014, 9:1883-1889

Published Date: 16 April 2014

Methacrylic-based nanogels for the pH-sensitive delivery of 5-Fluorouracil in the colon

Ashwanikumar N, Kumar NA, Nair SA, Kumar GS

International Journal of Nanomedicine 2012, 7:5769-5779

Published Date: 15 November 2012

A novel preparation method for silicone oil nanoemulsions and its application for coating hair with silicone

Hu Z, Liao M, Chen Y, Cai Y, Meng L, Liu Y, Lv N, Liu Z, Yuan W

International Journal of Nanomedicine 2012, 7:5719-5724

Published Date: 12 November 2012

Cross-linked acrylic hydrogel for the controlled delivery of hydrophobic drugs in cancer therapy

Deepa G, Thulasidasan AK, Anto RJ, Pillai JJ, Kumar GS

International Journal of Nanomedicine 2012, 7:4077-4088

Published Date: 27 July 2012

Particle size reduction to the nanometer range: a promising approach to improve buccal absorption of poorly water-soluble drugs

Rao S, Song Y, Peddie F, Evans AM

International Journal of Nanomedicine 2011, 6:1245-1251

Published Date: 20 June 2011

Crystallization after intravitreal ganciclovir injection

Pitipol Choopong, Nattaporn Tesavibul, Nattawut Rodanant

Clinical Ophthalmology 2010, 4:709-711

Published Date: 14 July 2010