Table of Contents
ISRN Pediatrics
Volume 2014 (2014), Article ID 920940, 5 pages
Research Article

Prevalence of Congenital Anomalies: A Community-Based Study in the Northwest of Iran

1Tabriz Health Services Management Research Centre, Tabriz University of Medical Sciences, Tabriz 5155668474, Iran
2Pediatric Health Research Centre, Tabriz University of Medical Sciences, Tabriz 5156734511, Iran
3Tabriz District Health Centre, Tabriz University of Medical Sciences, Tabriz 5143814998, Iran

Received 30 January 2014; Accepted 12 March 2014; Published 26 March 2014

Academic Editors: H. Neville, H. Rice, and K. Tokiwa

Copyright © 2014 Hossein Mashhadi Abdolahi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. Congenital anomalies are responsible for a remarkable proportion of mortality and morbidity in newborns. The aim of this study was to document the epidemiological features of congenital anomalies in rural areas, northwest of Iran. Method. The study population included live births born between 2004 and 2012 in rural areas of Tabriz district. All health records of the children under 8 years were assessed retrospectively. Results. Of 22500 live births, 254 cases were identified with a primary diagnosis of congenital anomalies giving a prevalence rate of 112.89 per 10 000 births (95% CI: 99.08 to 126.69). Anomalies of the nervous system were the most common defects, accounting for 24% of birth defects followed by the heart diseases anomalies. The highest prevalence rate for birth defects was observed in the south-western region with 386 per 10 000 births (95% CI: 215 to 556) compared to the similar rate in the north-western region with 15 per 10 000 births (95% CI: −14 to 45). Conclusion. The considerable geographic disparities in the prevalence of congenital anomalies in the region might be attributed to the highly polluted industrial zone in the area (including air and water pollution, etc.). This needs further etiological investigations in the region.