TY - JOUR T1 - Chromosomal anomalies: The experience of the Congenital Anomalies Registry of the Valencia Region JO - Anales de Pediatría (English Edition) T2 - AU - Gimeno-Martos,S. AU - Cavero-Carbonell,C. AU - López-Maside,A. AU - Bosch-Sánchez,S. AU - Martos-Jiménez,C. AU - Zurriaga,O. SN - 23412879 M3 - 10.1016/j.anpede.2015.09.035 DO - 10.1016/j.anpede.2015.09.035 UR - https://www.analesdepediatria.org/en-chromosomal-anomalies-the-experience-congenital-articulo-S2341287916000223 AB - ObjectiveTo describe the temporal trend and distribution of chromosomal congenital abnormalities (CA) in the Valencia Region, in less than one year olds, during the period 2007–2011. MethodologyLive births, still births and termination of pregnancy due to foetal anomaly between 2007 and 2011 with chromosomal CA (Q90-Q99.9 codes of the 10th International Classification of Diseases –British Paediatric Association) were selected from the CA population-based Registry of Valencia Region. The prevalence per 10000 births for the chromosomal CA and for the different types of chromosomal syndromes with 95% confidence intervals was calculated. The analysis was performed by calculating prevalences and data were compared using Pearson Chi-squared test. ResultsA total of 895 cases were found, representing a prevalence of 33.5 per 10000 births (95% CI: 31.0–35.9), highlighting five syndromes: Down's, Edward's, Patau, Turner and Klinefelter. The prevalence of chromosomal CA and Down's syndrome were stable over the period, except in 2010. Down's was the most frequent chromosomal CA (67% of the cases), and the most frequent termination of pregnancy type was for foetal anomaly (69%). Cardiac heart defects represented 70.3% of the associated congenital anomalies. Mothers of children with chromosomal CA were mainly Spanish (73.3%). The age group of mothers over 39 years had a higher prevalence (133.0 per 10000 births). The province of Castellón had the highest prevalence, 39.1 per 10000 births. ConclusionsThe prevalence has remained stable over the five years, excluding the significant decline in 2010, for chromosomal CA detected and two of the major syndromes. Chromosomal CA are an important public health problem as they represent 15% of all CA identified in the Valencia Region, and agrees with the European data. ER -