Developmental disabilities are a group of conditions due to an impairment in physical, learning, language, or behavior areas. About one in six children in the U.S. have one or more developmental disabilities or other developmental delays.
U.S. Department of Health & Human Services. (2022, April 29). Developmental disabilities. Centers for Disease Control & Prevention. https://www.cdc.gov/ncbddd/developmentaldisabilities/index.html