Congenital clubfoot in Europe: A population-based study.
Wang HDepartment of PharmacoTherapy, Epidemiology and Economics (PTEE) / Division: Groninger Research Institute of Pharmacy (GRIP), University of Groningen, Groningen, Belfast, UK.
Barisic IDepartment of Medical Genetics and Reproductive Health, Children's Hospital Zagreb, Medical School University of Zagreb, Zagreb, Croatia.
Loane MInstitute of Nursing & Health Research, Ulster University, Northern Ireland.
Addor MCDepartment of Woman-Mother-Child, University Hospital Center CHUV, Lausanne, Switzerland.
Bailey LMCongenital Anomaly Register and Information Service for Wales, Public Health UK NHS Trust, Swansea, Wales, UK.
Gatt MDirectorate for Health Information and Research, Tal-Pietà, Malta.
Klungsoyr KDivision of Mental and Physical Health, Norwegian Institute of Public Health and Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
Mokoroa OMalta Congenital Anomalies Register, Directorate for Health Information and Research, G'Mangia, Malta.
Nelen VProvince of Antwerp Department of Environment, Provincial Institute of Hygiene, Antwerp, Belgium.
Neville AJIMER Registry, Center for Clinical and Epidemiological Research, University of Ferrara and Azienda Ospedaliero Universitario di Ferrara, Ferrara, Italy.
O'Mahony MDepartment of Public Health, Health Service Executive - South, Ireland.
Pierini ATuscany Registry of Congenital Defects, Institute of Clinical Physiology-National Research Council/Fondazione Toscana "Gabriele Monasterio", Pisa, Italy.
Rissmann AMalformation Monitoring Centre Saxony-Anhalt, Medical Faculty, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
Verellen-Dumoulin CCenter for Human Genetics, Institut de Pathologie et de Génétique, Charleroi, Belgium.
de Walle HEKDepartment of Genetics, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands.
Wiesel ADepartment of Pediatrics, Birth Registry Mainz Model, University Medical Center of Mainz, Mainz, Germany.
Wisniewska KDepartment of Preventive Medicine, Epidemiology Unit, Poznan University of Medical Sciences, Poznan, Poland.
de Jong-van den Berg LTWDepartment of PharmacoTherapy, Epidemiology and Economics (PTEE) / Division: Groninger Research Institute of Pharmacy (GRIP), University of Groningen, Groningen, Belfast, UK.
Dolk HInstitute of Nursing & Health Research, Ulster University, Northern Ireland.
Khoshnood BINSERM UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center of Research in Epidemiology and Statistics Sorbonne Paris Cité (CRESS), DHU Risks in Pregnancy, Paris Descartes University, Paris, France.
English
We aimed to assess prevalence, birth outcome, associated anomalies and prenatal diagnosis of congenital clubfoot in Europe using data from the EUROCAT network, and to validate the recording of congenital clubfoot as a major congenital anomaly by EUROCAT registries. Cases of congenital clubfoot were included from 18 EUROCAT registries covering more than 4.8 million births in 1995-2011. Cases without chromosomal anomalies born during 2005-2009, were randomly selected for validation using a questionnaire on diagnostic details and treatment. There was 5,458 congenital clubfoot cases of which 5,056 (93%) were liveborn infants. Total prevalence of congenital clubfoot was 1.13 per 1,000 births (95% CI 1.10-1.16). Prevalence of congenital clubfoot without chromosomal anomaly was 1.08 per 1,000 births (95% CI 1.05-1.11) and prevalence of isolated congenital clubfoot was 0.92 per 1,000 births (95% CI 0.90-0.95), both with decreasing trends over time and large variations in prevalence by registry. The majority of cases were isolated congenital clubfoot (82%) and 11% had associated major congenital anomalies. Prenatal detection rate of isolated congenital clubfoot was 22% and increased over time. Among 301 validated congenital clubfoot cases, diagnosis was confirmed for 286 (95%). In conclusion, this large population-based study found a decreasing trend of congenital clubfoot in Europe after 1999-2002, an increasing prenatal detection rate, and a high standard of coding of congenital clubfoot in EUROCAT.