That is, less than one in 1,000 pregnancies for mothers less than 30 years of age results in a baby with Down syndrome. For mothers who are 44 years of age, about 1 in 35 pregnancies results in a baby with Down syndrome.
DEFINITION of 'Defined-Benefit Plan'. An employer-sponsored retirement plan where employee benefits are sorted out based on a formula using factors such as salary history and duration of employment.
In the United States, 88 percent of public employees are covered by a defined benefit pension plan. In the United States, Federal public sector plans are governed by the Internal Revenue Code and Federal law, while state and local public sector plans are governed by the Internal Revenue Code and state law.