Ontology highlight
ABSTRACT: Background
Surveillance of congenital anomalies is important to identify potential teratogens.Methods
This study analysed the prevalence of 61 congenital anomaly subgroups (excluding chromosomal) in 25 population-based EUROCAT registries (1980-2012). Live births, fetal deaths and terminations of pregnancy for fetal anomaly were analysed with multilevel random-effects Poisson regression models.Results
Seventeen anomaly subgroups had statistically significant trends from 2003-2012; 12 increasing and 5 decreasing.Conclusions
The annual increasing prevalence of severe congenital heart defects, single ventricle, atrioventricular septal defects and tetralogy of Fallot of 1.4% (95% CI: 0.7% to 2.0%), 4.6% (1.0% to 8.2%), 3.4% (1.3% to 5.5%) and 4.1% (2.4% to 5.7%) respectively may reflect increases in maternal obesity and diabetes (known risk factors). The increased prevalence of cystic adenomatous malformation of the lung [6.5% (3.5% to 9.4%)] and decreased prevalence of limb reduction defects [-2.8% (-4.2% to -1.5%)] are unexplained. For renal dysplasia and maternal infections, increasing trends may be explained by increased screening, and deceases in patent ductus arteriosus at term and increases in craniosynostosis, by improved follow up period after birth and improved diagnosis. For oesophageal atresia, duodenal atresia/stenosis and ano-rectal atresia/stenosis recent changes in prevalence appeared incidental when compared with larger long term fluctuations. For microcephaly and congenital hydronephrosis trends could not be interpreted due to discrepancies in diagnostic criteria. The trends for club foot and syndactyly disappeared once registries with disparate results were excluded. No decrease in neural tube defects was detected, despite efforts at prevention through folic acid supplementation.
SUBMITTER: Morris JK
PROVIDER: S-EPMC5886482 | biostudies-literature | 2018
REPOSITORIES: biostudies-literature
Morris Joan K JK Springett Anna L AL Greenlees Ruth R Loane Maria M Addor Marie-Claude MC Arriola Larraitz L Barisic Ingeborg I Bergman Jorieke E H JEH Csaky-Szunyogh Melinda M Dias Carlos C Draper Elizabeth S ES Garne Ester E Gatt Miriam M Khoshnood Babak B Klungsoyr Kari K Lynch Catherine C McDonnell Robert R Nelen Vera V Neville Amanda J AJ O'Mahony Mary M Pierini Anna A Queisser-Luft Annette A Randrianaivo Hanitra H Rankin Judith J Rissmann Anke A Kurinczuk Jennifer J Tucker David D Verellen-Dumoulin Christine C Wellesley Diana D Dolk Helen H
PloS one 20180405 4
<h4>Background</h4>Surveillance of congenital anomalies is important to identify potential teratogens.<h4>Methods</h4>This study analysed the prevalence of 61 congenital anomaly subgroups (excluding chromosomal) in 25 population-based EUROCAT registries (1980-2012). Live births, fetal deaths and terminations of pregnancy for fetal anomaly were analysed with multilevel random-effects Poisson regression models.<h4>Results</h4>Seventeen anomaly subgroups had statistically significant trends from 20 ...[more]