TY - CHAP M1 - Book, Section TI - Chapter 175. Birth Defects, Malformations, and Syndromes A1 - Carey, John C. A1 - Bamshad, Michael J. A2 - Rudolph, Colin D. A2 - Rudolph, Abraham M. A2 - Lister, George E. A2 - First, Lewis R. A2 - Gershon, Anne A. PY - 2011 T2 - Rudolph's Pediatrics, 22e AB - Birth defects are relatively common—about 2% of newborns will have a medically significant malformation recognized during the first day of life. However, approximately one half of all defects that are present at birth are not diagnosed until later in infancy. Defects that may not be apparent at birth include abnormalities of the central nervous system, cardiovascular system, and sensory systems (eg, hearing, vision) among others. Collectively, it appears that 4% of infants have a medically significant structural anomaly diagnosed by age 12 months. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accesspediatrics.mhmedical.com/content.aspx?aid=6728787 ER -