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Decreasing prevalence of oral cleft live births in the Netherlands, 1997-2006.
MedLine Citation:
PMID:  21071682     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Objectives The number of new oral cleft patients has fallen in the Netherlands. This may be explained by two hypotheses: (1) greater prenatal detection of congenital anomalies has led to more pregnancy terminations and (2) increased folic acid use has reduced the oral cleft risk. Both hypotheses would mainly apply to the category cleft lip/alveolus ± cleft palate (CL±P), since, unlike cleft palate only (CP), CL±P can be detected prenatally by two-dimensional (2D) ultrasound and develops during the period recommended for folic acid use. The authors aimed to determine trends in prevalence over 1997-2006 and to evaluate the hypotheses by stratifying trends by cleft category. Methods This study was a time-trend analysis of infants born alive with oral clefts in the Netherlands during 1997-2006 and registered in the national oral cleft registry. The authors calculated prevalence rates and the estimated annual percentage change (EAPC) for all oral clefts and the two categories. Results In 1997-2006, 3308 infants out of 1 970 872 live births had oral clefts, an overall prevalence per 10 000 live births of 16.8 (CL±P: 11.3; CP: 5.5). Time-trend analysis showed that the prevalence of all oral clefts decreased (EAPC -1.8%; 95% CI: -3.0% to -0.6%), as did the CL±P prevalence (EAPC -2.3%; 95% CI: -3.8% to -0.9%). No significant trends were found for the CP prevalence. Conclusions Because the live-birth prevalence of CL±P decreased, that of all oral clefts decreased. These findings are in line with both hypotheses and may therefore have implications for prenatal counselling and folic acid policy.
Authors:
Anna M Rozendaal; Antonius Jm Luijsterburg; Edwin M Ongkosuwito; Esther de Vries; Christl Vermeij-Keers
Publication Detail:
Type:  Journal Article     Date:  2010-11-11
Journal Detail:
Title:  Archives of disease in childhood. Fetal and neonatal edition     Volume:  96     ISSN:  1468-2052     ISO Abbreviation:  Arch. Dis. Child. Fetal Neonatal Ed.     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-04-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9501297     Medline TA:  Arch Dis Child Fetal Neonatal Ed     Country:  England    
Other Details:
Languages:  eng     Pagination:  F212-6     Citation Subset:  AIM; IM    
Affiliation:
Research Unit Department of Plastic and Reconstructive Surgery, Room 1591, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA Rotterdam, The Netherlands; am.rozendaal@gmail.com.
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